From e1b9ba0f22c03da31b59ac6cecbefc1eb58e4752 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Sat, 19 Jan 2019 21:36:00 +1100
Subject: [PATCH 01/32] add docstring for Model namedtuple

---
 gensim/models/_fasttext_bin.py | 43 ++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/gensim/models/_fasttext_bin.py b/gensim/models/_fasttext_bin.py
index 31d85c5074..c5ac212c4e 100644
--- a/gensim/models/_fasttext_bin.py
+++ b/gensim/models/_fasttext_bin.py
@@ -79,6 +79,49 @@ def _yield_field_names():
 
 _FIELD_NAMES = sorted(set(_yield_field_names()))
 Model = collections.namedtuple('Model', _FIELD_NAMES)
+"""Holds data loaded from the Facebook binary.
+
+Fields
+------
+dim : int
+    The dimensionality of the vectors.
+ws : int
+    The window size.
+epoch : int
+    The number of training epochs.
+neg : int
+    If non-zero, indicates that the model uses negative sampling.
+loss : int
+    If equal to 1, indicates that the model uses hierarchical sampling.
+model : int
+    If equal to 2, indicates that the model uses skip-grams.
+bucket : int
+    The number of buckets.
+min_count : int
+    The threshold below which the model ignores terms.
+t : float
+    The sample threshold.
+minn : int
+    The minimum ngram length.
+maxn : int
+    The maximum ngram length.
+raw_vocab : collections.OrderedDict
+    A map from words (str) to their frequency (int).  The order in the dict
+    corresponds to the order of the words in the Facebook binary.
+nwords : int
+    The number of words.
+vocab_size : int
+    The size of the vocabulary.
+vectors_ngrams : numpy.array
+    This is a matrix that contains vectors learned by the model.
+    Each row corresponds to a vector.
+    The number of vectors is equal to the number of words plus the number of buckets.
+    The number of columns is equal to the vector dimensionality.
+hidden_output : numpy.array
+    This is a matrix that contains the shallow neural network output.
+    This array has the same dimensions as vectors_ngrams.
+
+"""
 
 
 def _struct_unpack(fin, fmt):

From 53497a6115a94873956ff65251e61a8d95172d7e Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Sat, 19 Jan 2019 22:31:47 +1100
Subject: [PATCH 02/32] add option to skip hidden matrix loading

---
 gensim/models/_fasttext_bin.py | 17 +++++++++++------
 gensim/models/fasttext.py      | 21 +++++++++++++++++----
 gensim/test/test_fasttext.py   | 15 +++++++++++++++
 3 files changed, 43 insertions(+), 10 deletions(-)

diff --git a/gensim/models/_fasttext_bin.py b/gensim/models/_fasttext_bin.py
index c5ac212c4e..b927914511 100644
--- a/gensim/models/_fasttext_bin.py
+++ b/gensim/models/_fasttext_bin.py
@@ -120,7 +120,7 @@ def _yield_field_names():
 hidden_output : numpy.array
     This is a matrix that contains the shallow neural network output.
     This array has the same dimensions as vectors_ngrams.
-
+    May be None - in that case, it is impossible to continue training the model.
 """
 
 
@@ -220,7 +220,7 @@ def _load_matrix(fin, new_format=True):
     return matrix
 
 
-def load(fin, encoding='utf-8'):
+def load(fin, encoding='utf-8', fast=False):
     """Load a model from a binary stream.
 
     Parameters
@@ -229,6 +229,9 @@ def load(fin, encoding='utf-8'):
         The readable binary stream.
     encoding : str, optional
         The encoding to use for decoding text
+    fast : boolean, optional
+        If True, skips loading the hidden output matrix.  This saves a fair bit
+        of time, but prevents training continuation.
 
     Returns
     -------
@@ -252,10 +255,12 @@ def load(fin, encoding='utf-8'):
 
     vectors_ngrams = _load_matrix(fin, new_format=new_format)
 
-    hidden_output = _load_matrix(fin, new_format=new_format)
-    model.update(vectors_ngrams=vectors_ngrams, hidden_output=hidden_output)
-
-    assert fin.read() == b'', 'expected to reach EOF'
+    if fast:
+        hidden_output = None
+    else:
+        hidden_output = _load_matrix(fin, new_format=new_format)
+        assert fin.read() == b'', 'expected to reach EOF'
 
+    model.update(vectors_ngrams=vectors_ngrams, hidden_output=hidden_output)
     model = {k: v for k, v in model.items() if k in _FIELD_NAMES}
     return Model(**model)
diff --git a/gensim/models/fasttext.py b/gensim/models/fasttext.py
index 6cdad26fd0..4afdec230d 100644
--- a/gensim/models/fasttext.py
+++ b/gensim/models/fasttext.py
@@ -704,6 +704,13 @@ def train(self, sentences=None, corpus_file=None, total_examples=None, total_wor
             >>> model.train(sentences, total_examples=model.corpus_count, epochs=model.epochs)
 
         """
+        cant_train = hasattr(self.trainables, 'syn1neg') and self.trainables.syn1neg is None
+        if cant_train:
+            raise ValueError(
+                'this model cannot be trained any further, '
+                'if this is a native model, try loading it with fast=False'
+            )
+
         super(FastText, self).train(
             sentences=sentences, corpus_file=corpus_file, total_examples=total_examples, total_words=total_words,
             epochs=epochs, start_alpha=start_alpha, end_alpha=end_alpha, word_count=word_count,
@@ -754,7 +761,7 @@ def __contains__(self, word):
         return self.wv.__contains__(word)
 
     @classmethod
-    def load_fasttext_format(cls, model_file, encoding='utf8'):
+    def load_fasttext_format(cls, model_file, encoding='utf8', fast=False):
         """Load the input-hidden weight matrix from Facebook's native fasttext `.bin` and `.vec` output files.
 
         Notes
@@ -770,6 +777,9 @@ def load_fasttext_format(cls, model_file, encoding='utf8'):
             as Gensim requires only `.bin` file to the load entire fastText model.
         encoding : str, optional
             Specifies the file encoding.
+        fast : boolean, optional
+            If True, skips loading the hidden output matrix.  This saves a fair bit
+            of time, but prevents training continuation.
 
         Returns
         -------
@@ -777,7 +787,7 @@ def load_fasttext_format(cls, model_file, encoding='utf8'):
             The loaded model.
 
         """
-        return _load_fasttext_format(model_file, encoding=encoding)
+        return _load_fasttext_format(model_file, encoding=encoding, fast=fast)
 
     def load_binary_data(self, encoding='utf8'):
         """Load data from a binary file created by Facebook's native FastText.
@@ -959,7 +969,7 @@ def _pad_ones(m, new_shape):
     return vstack([m, suffix])
 
 
-def _load_fasttext_format(model_file, encoding='utf-8'):
+def _load_fasttext_format(model_file, encoding='utf-8', fast=False):
     """Load the input-hidden weight matrix from Facebook's native fasttext `.bin` and `.vec` output files.
 
     Parameters
@@ -971,6 +981,9 @@ def _load_fasttext_format(model_file, encoding='utf-8'):
         as Gensim requires only `.bin` file to the load entire fastText model.
     encoding : str, optional
         Specifies the file encoding.
+    fast : boolean, optional
+        If True, skips loading the hidden output matrix.  This saves a fair bit
+        of time, but prevents training continuation.
 
     Returns
     -------
@@ -980,7 +993,7 @@ def _load_fasttext_format(model_file, encoding='utf-8'):
     if not model_file.endswith('.bin'):
         model_file += '.bin'
     with smart_open(model_file, 'rb') as fin:
-        m = gensim.models._fasttext_bin.load(fin, encoding=encoding)
+        m = gensim.models._fasttext_bin.load(fin, encoding=encoding, fast=fast)
 
     model = FastText(
         size=m.dim,
diff --git a/gensim/test/test_fasttext.py b/gensim/test/test_fasttext.py
index 67b035549b..a1447e51e0 100644
--- a/gensim/test/test_fasttext.py
+++ b/gensim/test/test_fasttext.py
@@ -59,6 +59,21 @@ def setUp(self):
         self.test_model = FT_gensim.load_fasttext_format(self.test_model_file)
         self.test_new_model_file = datapath('lee_fasttext_new')
 
+    def test_native_fast(self):
+        """Can we skip loading the NN and still get a working model?"""
+        model = FT_gensim.load_fasttext_format(self.test_model_file, fast=True)
+
+        #
+        # Training continuation should be impossible
+        #
+        self.assertIsNone(model.trainables.syn1neg)
+        self.assertRaises(ValueError, model.train, sentences,
+                          total_examples=model.corpus_count, epochs=model.epochs)
+
+        model.wv['green']
+        model.wv['foobar']
+        model.wv['thisworddoesnotexist']
+
     def test_training(self):
         model = FT_gensim(size=10, min_count=1, hs=1, negative=0, seed=42, workers=1)
         model.build_vocab(sentences)

From 6ae0bb9bdc154e3b04c9b701a87504a910b5591d Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Sun, 20 Jan 2019 01:14:51 +1100
Subject: [PATCH 03/32] review response: rename fast -> full_model

---
 gensim/models/_fasttext_bin.py |  8 ++++----
 gensim/models/fasttext.py      | 18 +++++++++---------
 gensim/test/test_fasttext.py   |  4 ++--
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/gensim/models/_fasttext_bin.py b/gensim/models/_fasttext_bin.py
index b927914511..2cbc530a96 100644
--- a/gensim/models/_fasttext_bin.py
+++ b/gensim/models/_fasttext_bin.py
@@ -220,7 +220,7 @@ def _load_matrix(fin, new_format=True):
     return matrix
 
 
-def load(fin, encoding='utf-8', fast=False):
+def load(fin, encoding='utf-8', full_model=True):
     """Load a model from a binary stream.
 
     Parameters
@@ -229,8 +229,8 @@ def load(fin, encoding='utf-8', fast=False):
         The readable binary stream.
     encoding : str, optional
         The encoding to use for decoding text
-    fast : boolean, optional
-        If True, skips loading the hidden output matrix.  This saves a fair bit
+    full_model : boolean, optional
+        If False, skips loading the hidden output matrix.  This saves a fair bit
         of time, but prevents training continuation.
 
     Returns
@@ -255,7 +255,7 @@ def load(fin, encoding='utf-8', fast=False):
 
     vectors_ngrams = _load_matrix(fin, new_format=new_format)
 
-    if fast:
+    if not full_model:
         hidden_output = None
     else:
         hidden_output = _load_matrix(fin, new_format=new_format)
diff --git a/gensim/models/fasttext.py b/gensim/models/fasttext.py
index 4afdec230d..f25ff4481d 100644
--- a/gensim/models/fasttext.py
+++ b/gensim/models/fasttext.py
@@ -708,7 +708,7 @@ def train(self, sentences=None, corpus_file=None, total_examples=None, total_wor
         if cant_train:
             raise ValueError(
                 'this model cannot be trained any further, '
-                'if this is a native model, try loading it with fast=False'
+                'if this is a native model, try loading it with full_model=True'
             )
 
         super(FastText, self).train(
@@ -761,7 +761,7 @@ def __contains__(self, word):
         return self.wv.__contains__(word)
 
     @classmethod
-    def load_fasttext_format(cls, model_file, encoding='utf8', fast=False):
+    def load_fasttext_format(cls, model_file, encoding='utf8', full_model=True):
         """Load the input-hidden weight matrix from Facebook's native fasttext `.bin` and `.vec` output files.
 
         Notes
@@ -777,8 +777,8 @@ def load_fasttext_format(cls, model_file, encoding='utf8', fast=False):
             as Gensim requires only `.bin` file to the load entire fastText model.
         encoding : str, optional
             Specifies the file encoding.
-        fast : boolean, optional
-            If True, skips loading the hidden output matrix.  This saves a fair bit
+        full_model : boolean, optional
+            If False, skips loading the hidden output matrix.  This saves a fair bit
             of time, but prevents training continuation.
 
         Returns
@@ -787,7 +787,7 @@ def load_fasttext_format(cls, model_file, encoding='utf8', fast=False):
             The loaded model.
 
         """
-        return _load_fasttext_format(model_file, encoding=encoding, fast=fast)
+        return _load_fasttext_format(model_file, encoding=encoding, full_model=full_model)
 
     def load_binary_data(self, encoding='utf8'):
         """Load data from a binary file created by Facebook's native FastText.
@@ -969,7 +969,7 @@ def _pad_ones(m, new_shape):
     return vstack([m, suffix])
 
 
-def _load_fasttext_format(model_file, encoding='utf-8', fast=False):
+def _load_fasttext_format(model_file, encoding='utf-8', full_model=True):
     """Load the input-hidden weight matrix from Facebook's native fasttext `.bin` and `.vec` output files.
 
     Parameters
@@ -981,8 +981,8 @@ def _load_fasttext_format(model_file, encoding='utf-8', fast=False):
         as Gensim requires only `.bin` file to the load entire fastText model.
     encoding : str, optional
         Specifies the file encoding.
-    fast : boolean, optional
-        If True, skips loading the hidden output matrix.  This saves a fair bit
+    full_model : boolean, optional
+        If False, skips loading the hidden output matrix.  This saves a fair bit
         of time, but prevents training continuation.
 
     Returns
@@ -993,7 +993,7 @@ def _load_fasttext_format(model_file, encoding='utf-8', fast=False):
     if not model_file.endswith('.bin'):
         model_file += '.bin'
     with smart_open(model_file, 'rb') as fin:
-        m = gensim.models._fasttext_bin.load(fin, encoding=encoding, fast=fast)
+        m = gensim.models._fasttext_bin.load(fin, encoding=encoding, full_model=full_model)
 
     model = FastText(
         size=m.dim,
diff --git a/gensim/test/test_fasttext.py b/gensim/test/test_fasttext.py
index a1447e51e0..5437a9b3c8 100644
--- a/gensim/test/test_fasttext.py
+++ b/gensim/test/test_fasttext.py
@@ -59,9 +59,9 @@ def setUp(self):
         self.test_model = FT_gensim.load_fasttext_format(self.test_model_file)
         self.test_new_model_file = datapath('lee_fasttext_new')
 
-    def test_native_fast(self):
+    def test_native_partial_model(self):
         """Can we skip loading the NN and still get a working model?"""
-        model = FT_gensim.load_fasttext_format(self.test_model_file, fast=True)
+        model = FT_gensim.load_fasttext_format(self.test_model_file, full_model=False)
 
         #
         # Training continuation should be impossible

From 3406bf091b676343e04830671b512172dd2e6f91 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Sun, 20 Jan 2019 19:38:46 +1100
Subject: [PATCH 04/32] speed up hash function based on ideas from @horpto and
 @menshikh-iv

---
 gensim/models/_utils_any2vec.c   | 1088 ++++++++++++++++++++----------
 gensim/models/_utils_any2vec.pyx |   31 +
 gensim/models/fasttext.py        |   10 +-
 gensim/models/keyedvectors.py    |   38 +-
 gensim/models/utils_any2vec.py   |  126 ++--
 gensim/test/test_utils.py        |   18 +-
 6 files changed, 885 insertions(+), 426 deletions(-)

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index c42dd6ef33..d78f295799 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -608,6 +608,7 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __PYX_HAVE__gensim__models___utils_any2vec
 #define __PYX_HAVE_API__gensim__models___utils_any2vec
 /* Early includes */
+#include <stdint.h>
 #include <string.h>
 #include <stdio.h>
 #include "numpy/arrayobject.h"
@@ -847,7 +848,7 @@ static const char *__pyx_f[] = {
   "type.pxd",
 };
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -856,7 +857,7 @@ static const char *__pyx_f[] = {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -865,7 +866,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -874,7 +875,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -883,7 +884,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -892,7 +893,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -901,7 +902,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -910,7 +911,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -919,7 +920,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -928,7 +929,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -937,7 +938,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -946,7 +947,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -955,7 +956,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -964,7 +965,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -973,7 +974,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -982,7 +983,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -991,7 +992,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -1000,7 +1001,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -1009,7 +1010,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1018,7 +1019,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1027,7 +1028,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1063,7 +1064,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 /*--- Type declarations ---*/
 struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1072,7 +1073,7 @@ struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py;
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1081,7 +1082,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1090,7 +1091,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -1554,6 +1555,9 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value);
 
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value);
+
 /* RealImag.proto */
 #if CYTHON_CCOMPLEX
   #ifdef __cplusplus
@@ -1661,6 +1665,9 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES v
 /* CIntFromPy.proto */
 static CYTHON_INLINE unsigned int __Pyx_PyInt_As_unsigned_int(PyObject *);
 
+/* CIntFromPy.proto */
+static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *);
+
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
@@ -1687,6 +1694,8 @@ static int __Pyx_check_binary_version(void);
 static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
 
 
+/* Module declarations from 'libc.stdint' */
+
 /* Module declarations from 'cpython.buffer' */
 
 /* Module declarations from 'libc.string' */
@@ -1721,6 +1730,7 @@ static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____objec
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObject *); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObject *); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *, int __pyx_skip_dispatch); /*proto*/
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*)(PyObject *)); /*proto*/
@@ -1803,8 +1813,9 @@ static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_n_s_word;
 static PyObject *__pyx_n_s_wrap;
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez); /* proto */
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /* proto */
@@ -1823,7 +1834,7 @@ static PyObject *__pyx_tuple__10;
 static PyObject *__pyx_codeobj__11;
 /* Late includes */
 
-/* "gensim/models/_utils_any2vec.pyx":15
+/* "gensim/models/_utils_any2vec.pyx":16
  * 
  * 
  * cdef _byte_to_int_py3(b):             # <<<<<<<<<<<<<<
@@ -1836,7 +1847,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObj
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("_byte_to_int_py3", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":16
+  /* "gensim/models/_utils_any2vec.pyx":17
  * 
  * cdef _byte_to_int_py3(b):
  *     return b             # <<<<<<<<<<<<<<
@@ -1848,7 +1859,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObj
   __pyx_r = __pyx_v_b;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":15
+  /* "gensim/models/_utils_any2vec.pyx":16
  * 
  * 
  * cdef _byte_to_int_py3(b):             # <<<<<<<<<<<<<<
@@ -1863,7 +1874,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObj
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":18
+/* "gensim/models/_utils_any2vec.pyx":19
  *     return b
  * 
  * cdef _byte_to_int_py2(b):             # <<<<<<<<<<<<<<
@@ -1878,7 +1889,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
   PyObject *__pyx_t_2 = NULL;
   __Pyx_RefNannySetupContext("_byte_to_int_py2", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":19
+  /* "gensim/models/_utils_any2vec.pyx":20
  * 
  * cdef _byte_to_int_py2(b):
  *     return ord(b)             # <<<<<<<<<<<<<<
@@ -1886,14 +1897,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
  * _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_PyObject_Ord(__pyx_v_b); if (unlikely(__pyx_t_1 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 19, __pyx_L1_error)
-  __pyx_t_2 = __Pyx_PyInt_From_long(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 19, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Ord(__pyx_v_b); if (unlikely(__pyx_t_1 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 20, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_From_long(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 20, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_r = __pyx_t_2;
   __pyx_t_2 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":18
+  /* "gensim/models/_utils_any2vec.pyx":19
  *     return b
  * 
  * cdef _byte_to_int_py2(b):             # <<<<<<<<<<<<<<
@@ -1912,7 +1923,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":24
+/* "gensim/models/_utils_any2vec.pyx":25
  * 
  * 
  * cpdef ft_hash(unicode string):             # <<<<<<<<<<<<<<
@@ -1941,7 +1952,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
   unsigned int __pyx_t_13;
   __Pyx_RefNannySetupContext("ft_hash", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":40
+  /* "gensim/models/_utils_any2vec.pyx":46
  * 
  *     """
  *     cdef unsigned int h = 2166136261             # <<<<<<<<<<<<<<
@@ -1950,7 +1961,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":41
+  /* "gensim/models/_utils_any2vec.pyx":47
  *     """
  *     cdef unsigned int h = 2166136261
  *     for c in string.encode("utf-8"):             # <<<<<<<<<<<<<<
@@ -1959,13 +1970,13 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
  */
   if (unlikely(__pyx_v_string == Py_None)) {
     PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%.30s'", "encode");
-    __PYX_ERR(0, 41, __pyx_L1_error)
+    __PYX_ERR(0, 47, __pyx_L1_error)
   }
-  __pyx_t_1 = PyUnicode_AsUTF8String(__pyx_v_string); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 41, __pyx_L1_error)
+  __pyx_t_1 = PyUnicode_AsUTF8String(__pyx_v_string); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 47, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 41, __pyx_L1_error)
+  __pyx_t_2 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 47, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = Py_TYPE(__pyx_t_2)->tp_iternext; if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 41, __pyx_L1_error)
+  __pyx_t_3 = Py_TYPE(__pyx_t_2)->tp_iternext; if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 47, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   for (;;) {
     {
@@ -1974,7 +1985,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
         PyObject* exc_type = PyErr_Occurred();
         if (exc_type) {
           if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(0, 41, __pyx_L1_error)
+          else __PYX_ERR(0, 47, __pyx_L1_error)
         }
         break;
       }
@@ -1983,31 +1994,31 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
     __Pyx_XDECREF_SET(__pyx_v_c, __pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":42
+    /* "gensim/models/_utils_any2vec.pyx":48
  *     cdef unsigned int h = 2166136261
  *     for c in string.encode("utf-8"):
  *         h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))             # <<<<<<<<<<<<<<
  *         h = np.uint32(h * np.uint32(16777619))
  *     return h
  */
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 42, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_uint32); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 42, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_uint32); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 42, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __Pyx_GetModuleGlobalName(__pyx_t_7, __pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 42, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_7, __pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_uint32); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 42, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_uint32); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_GetModuleGlobalName(__pyx_t_9, __pyx_n_s_np); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 42, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_9, __pyx_n_s_np); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_9);
-    __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_t_9, __pyx_n_s_int8); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 42, __pyx_L1_error)
+    __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_t_9, __pyx_n_s_int8); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_10);
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-    __Pyx_GetModuleGlobalName(__pyx_t_11, __pyx_n_s_byte_to_int); if (unlikely(!__pyx_t_11)) __PYX_ERR(0, 42, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_11, __pyx_n_s_byte_to_int); if (unlikely(!__pyx_t_11)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_11);
     __pyx_t_12 = NULL;
     if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_11))) {
@@ -2021,7 +2032,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
     }
     __pyx_t_9 = (__pyx_t_12) ? __Pyx_PyObject_Call2Args(__pyx_t_11, __pyx_t_12, __pyx_v_c) : __Pyx_PyObject_CallOneArg(__pyx_t_11, __pyx_v_c);
     __Pyx_XDECREF(__pyx_t_12); __pyx_t_12 = 0;
-    if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 42, __pyx_L1_error)
+    if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_9);
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
     __pyx_t_11 = NULL;
@@ -2037,7 +2048,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
     __pyx_t_7 = (__pyx_t_11) ? __Pyx_PyObject_Call2Args(__pyx_t_10, __pyx_t_11, __pyx_t_9) : __Pyx_PyObject_CallOneArg(__pyx_t_10, __pyx_t_9);
     __Pyx_XDECREF(__pyx_t_11); __pyx_t_11 = 0;
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-    if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 42, __pyx_L1_error)
+    if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
     __pyx_t_10 = NULL;
@@ -2053,10 +2064,10 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
     __pyx_t_6 = (__pyx_t_10) ? __Pyx_PyObject_Call2Args(__pyx_t_8, __pyx_t_10, __pyx_t_7) : __Pyx_PyObject_CallOneArg(__pyx_t_8, __pyx_t_7);
     __Pyx_XDECREF(__pyx_t_10); __pyx_t_10 = 0;
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 42, __pyx_L1_error)
+    if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_8 = PyNumber_Xor(__pyx_t_4, __pyx_t_6); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 42, __pyx_L1_error)
+    __pyx_t_8 = PyNumber_Xor(__pyx_t_4, __pyx_t_6); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2073,30 +2084,30 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
     __pyx_t_1 = (__pyx_t_6) ? __Pyx_PyObject_Call2Args(__pyx_t_5, __pyx_t_6, __pyx_t_8) : __Pyx_PyObject_CallOneArg(__pyx_t_5, __pyx_t_8);
     __Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 42, __pyx_L1_error)
+    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_13 = __Pyx_PyInt_As_unsigned_int(__pyx_t_1); if (unlikely((__pyx_t_13 == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 42, __pyx_L1_error)
+    __pyx_t_13 = __Pyx_PyInt_As_unsigned_int(__pyx_t_1); if (unlikely((__pyx_t_13 == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 48, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __pyx_v_h = __pyx_t_13;
 
-    /* "gensim/models/_utils_any2vec.pyx":43
+    /* "gensim/models/_utils_any2vec.pyx":49
  *     for c in string.encode("utf-8"):
  *         h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))
  *         h = np.uint32(h * np.uint32(16777619))             # <<<<<<<<<<<<<<
  *     return h
  * 
  */
-    __Pyx_GetModuleGlobalName(__pyx_t_5, __pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 43, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_5, __pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 49, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_uint32); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 43, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_uint32); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 49, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 43, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 49, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 43, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 49, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_uint32); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 43, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_uint32); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 49, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_t_4 = NULL;
@@ -2111,10 +2122,10 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
     }
     __pyx_t_6 = (__pyx_t_4) ? __Pyx_PyObject_Call2Args(__pyx_t_7, __pyx_t_4, __pyx_int_16777619) : __Pyx_PyObject_CallOneArg(__pyx_t_7, __pyx_int_16777619);
     __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
-    if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 43, __pyx_L1_error)
+    if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 49, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = PyNumber_Multiply(__pyx_t_5, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 43, __pyx_L1_error)
+    __pyx_t_7 = PyNumber_Multiply(__pyx_t_5, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 49, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2131,14 +2142,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
     __pyx_t_1 = (__pyx_t_6) ? __Pyx_PyObject_Call2Args(__pyx_t_8, __pyx_t_6, __pyx_t_7) : __Pyx_PyObject_CallOneArg(__pyx_t_8, __pyx_t_7);
     __Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 43, __pyx_L1_error)
+    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 49, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_13 = __Pyx_PyInt_As_unsigned_int(__pyx_t_1); if (unlikely((__pyx_t_13 == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 43, __pyx_L1_error)
+    __pyx_t_13 = __Pyx_PyInt_As_unsigned_int(__pyx_t_1); if (unlikely((__pyx_t_13 == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 49, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __pyx_v_h = __pyx_t_13;
 
-    /* "gensim/models/_utils_any2vec.pyx":41
+    /* "gensim/models/_utils_any2vec.pyx":47
  *     """
  *     cdef unsigned int h = 2166136261
  *     for c in string.encode("utf-8"):             # <<<<<<<<<<<<<<
@@ -2148,7 +2159,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
   }
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":44
+  /* "gensim/models/_utils_any2vec.pyx":50
  *         h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))
  *         h = np.uint32(h * np.uint32(16777619))
  *     return h             # <<<<<<<<<<<<<<
@@ -2156,13 +2167,13 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_2 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 44, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 50, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_r = __pyx_t_2;
   __pyx_t_2 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":24
+  /* "gensim/models/_utils_any2vec.pyx":25
  * 
  * 
  * cpdef ft_hash(unicode string):             # <<<<<<<<<<<<<<
@@ -2194,12 +2205,12 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__py
 
 /* Python wrapper */
 static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
-static char __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash[] = "ft_hash(unicode string)\nCalculate hash based on `string`.\n    Reproduce `hash method from Facebook fastText implementation\n    <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.\n\n    Parameters\n    ----------\n    string : unicode\n        The string whose hash needs to be calculated.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash[] = "ft_hash(unicode string)\nCalculate hash based on `string`.\n    Reproduce `hash method from Facebook fastText implementation\n    <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.\n\n    This function is expensive because it encodes each input string as UTF-8,\n    and this can accumulate to a high computational cost if there are many\n    strings.  If possible, convert your strings to bytes and use the faster\n    :py:func:`ft_hash_bytes` function instead.\n\n    Parameters\n    ----------\n    string : unicode\n        The string whose hash needs to be calculated.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
 static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash(PyObject *__pyx_self, PyObject *__pyx_v_string) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 24, __pyx_L1_error)
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 25, __pyx_L1_error)
   __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash(__pyx_self, ((PyObject*)__pyx_v_string));
 
   /* function exit code */
@@ -2217,7 +2228,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash(CYTHON_UNUSED
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 24, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2234,7 +2245,153 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash(CYTHON_UNUSED
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":47
+/* "gensim/models/_utils_any2vec.pyx":53
+ * 
+ * 
+ * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
+ *     """Calculate hash based on `bytez`.
+ *     Reproduce `hash method from Facebook fastText implementation
+ */
+
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_bytes(PyObject *__pyx_self, PyObject *__pyx_v_bytez); /*proto*/
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject *__pyx_v_bytez, CYTHON_UNUSED int __pyx_skip_dispatch) {
+  uint32_t __pyx_v_h;
+  char __pyx_v_b;
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  char *__pyx_t_2;
+  char *__pyx_t_3;
+  char *__pyx_t_4;
+  char *__pyx_t_5;
+  PyObject *__pyx_t_6 = NULL;
+  __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
+
+  /* "gensim/models/_utils_any2vec.pyx":69
+ * 
+ *     """
+ *     cdef uint32_t h = 2166136261             # <<<<<<<<<<<<<<
+ *     cdef char b
+ * 
+ */
+  __pyx_v_h = 0x811C9DC5;
+
+  /* "gensim/models/_utils_any2vec.pyx":72
+ *     cdef char b
+ * 
+ *     for b in bytez:             # <<<<<<<<<<<<<<
+ *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+ *         h = h * 16777619
+ */
+  if (unlikely(__pyx_v_bytez == Py_None)) {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
+    __PYX_ERR(0, 72, __pyx_L1_error)
+  }
+  __Pyx_INCREF(__pyx_v_bytez);
+  __pyx_t_1 = __pyx_v_bytez;
+  __pyx_t_3 = PyBytes_AS_STRING(__pyx_t_1);
+  __pyx_t_4 = (__pyx_t_3 + PyBytes_GET_SIZE(__pyx_t_1));
+  for (__pyx_t_5 = __pyx_t_3; __pyx_t_5 < __pyx_t_4; __pyx_t_5++) {
+    __pyx_t_2 = __pyx_t_5;
+    __pyx_v_b = (__pyx_t_2[0]);
+
+    /* "gensim/models/_utils_any2vec.pyx":73
+ * 
+ *     for b in bytez:
+ *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss             # <<<<<<<<<<<<<<
+ *         h = h * 16777619
+ *     return h
+ */
+    __pyx_v_h = (__pyx_v_h ^ ((uint32_t)((int8_t)__pyx_v_b)));
+
+    /* "gensim/models/_utils_any2vec.pyx":74
+ *     for b in bytez:
+ *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+ *         h = h * 16777619             # <<<<<<<<<<<<<<
+ *     return h
+ * 
+ */
+    __pyx_v_h = (__pyx_v_h * 0x1000193);
+  }
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  /* "gensim/models/_utils_any2vec.pyx":75
+ *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+ *         h = h * 16777619
+ *     return h             # <<<<<<<<<<<<<<
+ * 
+ * 
+ */
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_6 = __Pyx_PyInt_From_uint32_t(__pyx_v_h); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 75, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_6);
+  __pyx_r = __pyx_t_6;
+  __pyx_t_6 = 0;
+  goto __pyx_L0;
+
+  /* "gensim/models/_utils_any2vec.pyx":53
+ * 
+ * 
+ * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
+ *     """Calculate hash based on `bytez`.
+ *     Reproduce `hash method from Facebook fastText implementation
+ */
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_6);
+  __Pyx_AddTraceback("gensim.models._utils_any2vec.ft_hash_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* Python wrapper */
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_bytes(PyObject *__pyx_self, PyObject *__pyx_v_bytez); /*proto*/
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_bytes[] = "ft_hash_bytes(bytes bytez)\nCalculate hash based on `bytez`.\n    Reproduce `hash method from Facebook fastText implementation\n    <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.\n\n    Parameters\n    ----------\n    bytez : bytes\n        The string whose hash needs to be calculated, encoded as UTF-8.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_bytes(PyObject *__pyx_self, PyObject *__pyx_v_bytez) {
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("ft_hash_bytes (wrapper)", 0);
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_bytez), (&PyBytes_Type), 1, "bytez", 1))) __PYX_ERR(0, 53, __pyx_L1_error)
+  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_bytes(__pyx_self, ((PyObject*)__pyx_v_bytez));
+
+  /* function exit code */
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_v_bytez, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 53, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_r = __pyx_t_1;
+  __pyx_t_1 = 0;
+  goto __pyx_L0;
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_AddTraceback("gensim.models._utils_any2vec.ft_hash_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "gensim/models/_utils_any2vec.pyx":78
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2242,7 +2399,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash(CYTHON_UNUSED
  * 
  */
 
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObject *__pyx_v_string, CYTHON_UNUSED int __pyx_skip_dispatch) {
   unsigned int __pyx_v_h;
   PyObject *__pyx_v_c = NULL;
@@ -2259,7 +2416,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   long __pyx_t_9;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":64
+  /* "gensim/models/_utils_any2vec.pyx":95
  * 
  *     """
  *     cdef unsigned int h = 2166136261             # <<<<<<<<<<<<<<
@@ -2268,7 +2425,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":65
+  /* "gensim/models/_utils_any2vec.pyx":96
  *     """
  *     cdef unsigned int h = 2166136261
  *     for c in string:             # <<<<<<<<<<<<<<
@@ -2277,29 +2434,29 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   if (unlikely(__pyx_v_string == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(0, 65, __pyx_L1_error)
+    __PYX_ERR(0, 96, __pyx_L1_error)
   }
   __Pyx_INCREF(__pyx_v_string);
   __pyx_t_1 = __pyx_v_string;
-  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 65, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 96, __pyx_L1_error)
   for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_3; __pyx_t_7++) {
     __pyx_t_2 = __pyx_t_7;
-    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 65, __pyx_L1_error)
+    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 96, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_XDECREF_SET(__pyx_v_c, __pyx_t_8);
     __pyx_t_8 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":66
+    /* "gensim/models/_utils_any2vec.pyx":97
  *     cdef unsigned int h = 2166136261
  *     for c in string:
  *         h ^= ord(c)             # <<<<<<<<<<<<<<
  *         h *= 16777619
  *     return h
  */
-    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 66, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 97, __pyx_L1_error)
     __pyx_v_h = (__pyx_v_h ^ __pyx_t_9);
 
-    /* "gensim/models/_utils_any2vec.pyx":67
+    /* "gensim/models/_utils_any2vec.pyx":98
  *     for c in string:
  *         h ^= ord(c)
  *         h *= 16777619             # <<<<<<<<<<<<<<
@@ -2310,7 +2467,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":68
+  /* "gensim/models/_utils_any2vec.pyx":99
  *         h ^= ord(c)
  *         h *= 16777619
  *     return h             # <<<<<<<<<<<<<<
@@ -2318,13 +2475,13 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 68, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 99, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_8);
   __pyx_r = __pyx_t_8;
   __pyx_t_8 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":47
+  /* "gensim/models/_utils_any2vec.pyx":78
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2346,14 +2503,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
-static char __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_broken[] = "ft_hash_broken(unicode string)\nCalculate hash based on `string`.\n\n    This implementation is broken, see https://github.com/RaRe-Technologies/gensim/issues/2059.\n    It is here only for maintaining backwards compatibility with older models.\n\n    Parameters\n    ----------\n    string : unicode\n        The string whose hash needs to be calculated.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string) {
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_4ft_hash_broken[] = "ft_hash_broken(unicode string)\nCalculate hash based on `string`.\n\n    This implementation is broken, see https://github.com/RaRe-Technologies/gensim/issues/2059.\n    It is here only for maintaining backwards compatibility with older models.\n\n    Parameters\n    ----------\n    string : unicode\n        The string whose hash needs to be calculated.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash_broken (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 47, __pyx_L1_error)
-  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(__pyx_self, ((PyObject*)__pyx_v_string));
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 78, __pyx_L1_error)
+  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_4ft_hash_broken(__pyx_self, ((PyObject*)__pyx_v_string));
 
   /* function exit code */
   goto __pyx_L0;
@@ -2364,13 +2521,13 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObj
   return __pyx_r;
 }
 
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string) {
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 47, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 78, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2387,7 +2544,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHO
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":71
+/* "gensim/models/_utils_any2vec.pyx":102
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2395,7 +2552,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHO
  * 
  */
 
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n, CYTHON_UNUSED int __pyx_skip_dispatch) {
   PyObject *__pyx_v_extended_word = 0;
   PyObject *__pyx_v_ngrams = NULL;
@@ -2419,14 +2576,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":89
+  /* "gensim/models/_utils_any2vec.pyx":120
  * 
  *     """
  *     cdef unicode extended_word = f'<{word}>'             # <<<<<<<<<<<<<<
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  */
-  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 89, __pyx_L1_error)
+  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = 0;
   __pyx_t_3 = 127;
@@ -2434,7 +2591,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u_);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_kp_u_);
-  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 89, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_3 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) > __pyx_t_3) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) : __pyx_t_3;
   __pyx_t_2 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_4);
@@ -2445,43 +2602,43 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u__2);
   PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_kp_u__2);
-  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 89, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_extended_word = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":90
+  /* "gensim/models/_utils_any2vec.pyx":121
  *     """
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []             # <<<<<<<<<<<<<<
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  */
-  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 90, __pyx_L1_error)
+  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_v_ngrams = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":91
+  /* "gensim/models/_utils_any2vec.pyx":122
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  */
-  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 91, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 122, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_5 = __pyx_v_max_n;
-  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 91, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 122, __pyx_L1_error)
   if (((__pyx_t_5 < __pyx_t_2) != 0)) {
     __pyx_t_6 = __pyx_t_5;
   } else {
     __pyx_t_6 = __pyx_t_2;
   }
-  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 91, __pyx_L1_error)
+  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 91, __pyx_L1_error)
+  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 122, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_GIVEREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_4);
@@ -2489,16 +2646,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_1);
   __pyx_t_4 = 0;
   __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 91, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
     __pyx_t_7 = __pyx_t_1; __Pyx_INCREF(__pyx_t_7); __pyx_t_6 = 0;
     __pyx_t_8 = NULL;
   } else {
-    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 91, __pyx_L1_error)
+    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 91, __pyx_L1_error)
+    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 122, __pyx_L1_error)
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   for (;;) {
@@ -2506,17 +2663,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (likely(PyList_CheckExact(__pyx_t_7))) {
         if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 91, __pyx_L1_error)
+        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 122, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 91, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       } else {
         if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 91, __pyx_L1_error)
+        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 122, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 91, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       }
@@ -2526,7 +2683,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         PyObject* exc_type = PyErr_Occurred();
         if (exc_type) {
           if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(0, 91, __pyx_L1_error)
+          else __PYX_ERR(0, 122, __pyx_L1_error)
         }
         break;
       }
@@ -2535,23 +2692,23 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_XDECREF_SET(__pyx_v_ngram_length, __pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":92
+    /* "gensim/models/_utils_any2vec.pyx":123
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams
  */
-    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 92, __pyx_L1_error)
-    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
+    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 123, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 123, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_int_0);
     __Pyx_GIVEREF(__pyx_int_0);
@@ -2559,16 +2716,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_GIVEREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
       __pyx_t_4 = __pyx_t_1; __Pyx_INCREF(__pyx_t_4); __pyx_t_2 = 0;
       __pyx_t_9 = NULL;
     } else {
-      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
+      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 123, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 92, __pyx_L1_error)
+      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 123, __pyx_L1_error)
     }
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     for (;;) {
@@ -2576,17 +2733,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         if (likely(PyList_CheckExact(__pyx_t_4))) {
           if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 92, __pyx_L1_error)
+          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 123, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         } else {
           if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 92, __pyx_L1_error)
+          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 123, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         }
@@ -2596,7 +2753,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
           PyObject* exc_type = PyErr_Occurred();
           if (exc_type) {
             if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-            else __PYX_ERR(0, 92, __pyx_L1_error)
+            else __PYX_ERR(0, 123, __pyx_L1_error)
           }
           break;
         }
@@ -2605,7 +2762,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_1);
       __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":93
+      /* "gensim/models/_utils_any2vec.pyx":124
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])             # <<<<<<<<<<<<<<
@@ -2617,26 +2774,26 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (__pyx_t_11) {
         __pyx_t_10 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 93, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 124, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 93, __pyx_L1_error)
+      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_11 = (__pyx_t_1 == Py_None);
       if (__pyx_t_11) {
         __pyx_t_12 = PY_SSIZE_T_MAX;
       } else {
-        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 93, __pyx_L1_error)
+        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 124, __pyx_L1_error)
         __pyx_t_12 = __pyx_t_13;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 93, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 93, __pyx_L1_error)
+      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 124, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":92
+      /* "gensim/models/_utils_any2vec.pyx":123
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
@@ -2646,7 +2803,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     }
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":91
+    /* "gensim/models/_utils_any2vec.pyx":122
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
@@ -2656,7 +2813,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   }
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":94
+  /* "gensim/models/_utils_any2vec.pyx":125
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams             # <<<<<<<<<<<<<<
@@ -2666,7 +2823,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_r = __pyx_v_ngrams;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":71
+  /* "gensim/models/_utils_any2vec.pyx":102
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2692,9 +2849,9 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_6gensim_6models_14_utils_any2vec_4compute_ngrams[] = "compute_ngrams(word, unsigned int min_n, unsigned int max_n)\nGet the list of all possible ngrams for a given word.\n\n    Parameters\n    ----------\n    word : str\n        The word whose ngrams need to be computed.\n    min_n : unsigned int\n        Minimum character length of the ngrams.\n    max_n : unsigned int\n        Maximum character length of the ngrams.\n\n    Returns\n    -------\n    list of str\n        Sequence of character ngrams.\n\n    ";
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams[] = "compute_ngrams(word, unsigned int min_n, unsigned int max_n)\nGet the list of all possible ngrams for a given word.\n\n    Parameters\n    ----------\n    word : str\n        The word whose ngrams need to be computed.\n    min_n : unsigned int\n        Minimum character length of the ngrams.\n    max_n : unsigned int\n        Maximum character length of the ngrams.\n\n    Returns\n    -------\n    list of str\n        Sequence of character ngrams.\n\n    ";
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_word = 0;
   unsigned int __pyx_v_min_n;
   unsigned int __pyx_v_max_n;
@@ -2726,17 +2883,17 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObj
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 71, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 102, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 71, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 102, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 71, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 102, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -2746,31 +2903,31 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObj
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
     }
     __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 71, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 71, __pyx_L3_error)
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 102, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 102, __pyx_L3_error)
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 71, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 102, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(__pyx_self, __pyx_v_word, __pyx_v_min_n, __pyx_v_max_n);
+  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams(__pyx_self, __pyx_v_word, __pyx_v_min_n, __pyx_v_max_n);
 
   /* function exit code */
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n) {
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 71, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2787,7 +2944,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHO
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -2836,7 +2993,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
  * 
  *             cdef int i, ndim
  *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -2845,7 +3002,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
  *             cdef int i, ndim
  *             cdef int endian_detector = 1
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -2854,7 +3011,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
  *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
@@ -2863,7 +3020,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -2877,7 +3034,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L4_bool_binop_done;
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -2888,7 +3045,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L4_bool_binop_done:;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -2897,7 +3054,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -2910,7 +3067,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 272, __pyx_L1_error)
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -2919,7 +3076,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -2933,7 +3090,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L7_bool_binop_done;
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -2944,7 +3101,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L7_bool_binop_done:;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -2953,7 +3110,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -2966,7 +3123,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 276, __pyx_L1_error)
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -2975,7 +3132,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
  *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
@@ -2984,7 +3141,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
  * 
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim             # <<<<<<<<<<<<<<
@@ -2993,7 +3150,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->ndim = __pyx_v_ndim;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3003,7 +3160,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
  *                 # Allocate new buffer for strides and shape info.
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
@@ -3012,7 +3169,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
@@ -3021,7 +3178,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":285
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":285
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -3033,7 +3190,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
@@ -3042,7 +3199,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
       (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]
  *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
@@ -3052,7 +3209,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
     }
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3062,7 +3219,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L9;
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
  *                     info.shape[i] = PyArray_DIMS(self)[i]
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
@@ -3072,7 +3229,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":290
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":290
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
@@ -3083,7 +3240,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   }
   __pyx_L9:;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":291
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":291
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -3092,7 +3249,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->suboffsets = NULL;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
@@ -3101,7 +3258,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":293
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":293
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)
  *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
@@ -3110,7 +3267,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
  * 
  *             cdef int t
  *             cdef char* f = NULL             # <<<<<<<<<<<<<<
@@ -3119,7 +3276,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_f = NULL;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             cdef int t
  *             cdef char* f = NULL
  *             cdef dtype descr = <dtype>PyArray_DESCR(self)             # <<<<<<<<<<<<<<
@@ -3132,7 +3289,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":300
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":300
  *             cdef int offset
  * 
  *             info.obj = self             # <<<<<<<<<<<<<<
@@ -3145,7 +3302,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -3155,7 +3312,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":303
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":303
  * 
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num             # <<<<<<<<<<<<<<
@@ -3165,7 +3322,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_4 = __pyx_v_descr->type_num;
     __pyx_v_t = __pyx_t_4;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -3185,7 +3342,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     }
     __pyx_L15_next_or:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":305
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":305
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -3202,7 +3359,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_1 = __pyx_t_2;
     __pyx_L14_bool_binop_done:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -3211,7 +3368,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     if (unlikely(__pyx_t_1)) {
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -3224,7 +3381,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 306, __pyx_L1_error)
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -3233,7 +3390,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     }
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":307
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":307
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
@@ -3246,7 +3403,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_UBYTE:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":308
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":308
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
@@ -3257,7 +3414,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_SHORT:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":309
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":309
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
@@ -3268,7 +3425,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_USHORT:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":310
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":310
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
@@ -3279,7 +3436,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_INT:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":311
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":311
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
@@ -3290,7 +3447,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_UINT:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":312
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":312
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
@@ -3301,7 +3458,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_LONG:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":313
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":313
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
@@ -3312,7 +3469,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_ULONG:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":314
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":314
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
@@ -3323,7 +3480,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_LONGLONG:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":315
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":315
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
@@ -3334,7 +3491,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_ULONGLONG:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":316
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":316
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
@@ -3345,7 +3502,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_FLOAT:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":317
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":317
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
@@ -3356,7 +3513,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_DOUBLE:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":318
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":318
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
@@ -3367,7 +3524,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_LONGDOUBLE:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":319
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":319
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
@@ -3378,7 +3535,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_CFLOAT:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":320
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":320
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
@@ -3389,7 +3546,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_CDOUBLE:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":321
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":321
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
@@ -3400,7 +3557,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_CLONGDOUBLE:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":322
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":322
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
@@ -3411,7 +3568,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_OBJECT:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":323
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":323
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
@@ -3422,7 +3579,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       default:
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":325
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":325
  *                 elif t == NPY_OBJECT:      f = "O"
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -3443,7 +3600,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
     }
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":326
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":326
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f             # <<<<<<<<<<<<<<
@@ -3452,7 +3609,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->format = __pyx_v_f;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":327
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":327
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f
  *                 return             # <<<<<<<<<<<<<<
@@ -3462,7 +3619,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_r = 0;
     goto __pyx_L0;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -3471,7 +3628,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":329
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":329
  *                 return
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
@@ -3481,7 +3638,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":330
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":330
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
@@ -3490,7 +3647,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     (__pyx_v_info->format[0]) = '^';
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":331
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":331
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0             # <<<<<<<<<<<<<<
@@ -3499,7 +3656,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_offset = 0;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":332
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":332
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0
  *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
@@ -3509,7 +3666,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_9 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_9 == ((char *)NULL))) __PYX_ERR(1, 332, __pyx_L1_error)
     __pyx_v_f = __pyx_t_9;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":335
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":335
  *                                       info.format + _buffer_format_string_len,
  *                                       &offset)
  *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
@@ -3519,7 +3676,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     (__pyx_v_f[0]) = '\x00';
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -3551,7 +3708,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -3575,7 +3732,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__releasebuffer__", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -3585,7 +3742,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
   if (__pyx_t_1) {
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":339
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":339
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
@@ -3594,7 +3751,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->format);
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -3603,7 +3760,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3613,7 +3770,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":341
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":341
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
@@ -3622,7 +3779,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->strides);
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3631,7 +3788,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -3643,7 +3800,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __Pyx_RefNannyFinishContext();
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -3657,7 +3814,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew1", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":822
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":822
  * 
  * cdef inline object PyArray_MultiIterNew1(a):
  *     return PyArray_MultiIterNew(1, <void*>a)             # <<<<<<<<<<<<<<
@@ -3671,7 +3828,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -3690,7 +3847,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -3704,7 +3861,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew2", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)             # <<<<<<<<<<<<<<
@@ -3718,7 +3875,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -3737,7 +3894,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -3751,7 +3908,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew3", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":828
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":828
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)             # <<<<<<<<<<<<<<
@@ -3765,7 +3922,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -3784,7 +3941,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -3798,7 +3955,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew4", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)             # <<<<<<<<<<<<<<
@@ -3812,7 +3969,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -3831,7 +3988,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -3845,7 +4002,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew5", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)             # <<<<<<<<<<<<<<
@@ -3859,7 +4016,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -3878,7 +4035,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -3892,7 +4049,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("PyDataType_SHAPE", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):             # <<<<<<<<<<<<<<
@@ -3902,7 +4059,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   __pyx_t_1 = (PyDataType_HASSUBARRAY(__pyx_v_d) != 0);
   if (__pyx_t_1) {
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):
  *         return <tuple>d.subarray.shape             # <<<<<<<<<<<<<<
@@ -3914,7 +4071,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
     __pyx_r = ((PyObject*)__pyx_v_d->subarray->shape);
     goto __pyx_L0;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):             # <<<<<<<<<<<<<<
@@ -3923,7 +4080,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
  */
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
  *         return <tuple>d.subarray.shape
  *     else:
  *         return ()             # <<<<<<<<<<<<<<
@@ -3937,7 +4094,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
     goto __pyx_L0;
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -3952,7 +4109,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -3981,7 +4138,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   char *__pyx_t_9;
   __Pyx_RefNannySetupContext("_util_dtypestring", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
  * 
  *     cdef dtype child
  *     cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -3990,7 +4147,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
  *     cdef dtype child
  *     cdef int endian_detector = 1
  *     cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -3999,7 +4156,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -4022,7 +4179,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __Pyx_XDECREF_SET(__pyx_v_childname, __pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
  * 
  *     for childname in descr.names:
  *         fields = descr.fields[childname]             # <<<<<<<<<<<<<<
@@ -4039,7 +4196,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __Pyx_XDECREF_SET(__pyx_v_fields, ((PyObject*)__pyx_t_3));
     __pyx_t_3 = 0;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
  *     for childname in descr.names:
  *         fields = descr.fields[childname]
  *         child, new_offset = fields             # <<<<<<<<<<<<<<
@@ -4074,7 +4231,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __Pyx_XDECREF_SET(__pyx_v_new_offset, __pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -4091,7 +4248,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((((__pyx_v_end - __pyx_v_f) - ((int)__pyx_t_5)) < 15) != 0);
     if (unlikely(__pyx_t_6)) {
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -4104,7 +4261,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 856, __pyx_L1_error)
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -4113,7 +4270,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4133,7 +4290,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L8_next_or:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":859
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":859
  * 
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -4150,7 +4307,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = __pyx_t_7;
     __pyx_L7_bool_binop_done:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4159,7 +4316,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     if (unlikely(__pyx_t_6)) {
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):
  *             raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -4172,7 +4329,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 860, __pyx_L1_error)
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4181,7 +4338,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":870
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":870
  * 
  *         # Output padding bytes
  *         while offset[0] < new_offset:             # <<<<<<<<<<<<<<
@@ -4197,7 +4354,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (!__pyx_t_6) break;
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":871
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":871
  *         # Output padding bytes
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte             # <<<<<<<<<<<<<<
@@ -4206,7 +4363,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       (__pyx_v_f[0]) = 0x78;
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":872
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":872
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte
  *             f += 1             # <<<<<<<<<<<<<<
@@ -4215,7 +4372,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":873
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":873
  *             f[0] = 120 # "x"; pad byte
  *             f += 1
  *             offset[0] += 1             # <<<<<<<<<<<<<<
@@ -4226,7 +4383,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + 1);
     }
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":875
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":875
  *             offset[0] += 1
  * 
  *         offset[0] += child.itemsize             # <<<<<<<<<<<<<<
@@ -4236,7 +4393,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_8 = 0;
     (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + __pyx_v_child->elsize);
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -4246,7 +4403,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((!(PyDataType_HASFIELDS(__pyx_v_child) != 0)) != 0);
     if (__pyx_t_6) {
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":878
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":878
  * 
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num             # <<<<<<<<<<<<<<
@@ -4258,7 +4415,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_XDECREF_SET(__pyx_v_t, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -4268,7 +4425,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __pyx_t_6 = (((__pyx_v_end - __pyx_v_f) < 5) != 0);
       if (unlikely(__pyx_t_6)) {
 
-        /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
+        /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -4281,7 +4438,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __PYX_ERR(1, 880, __pyx_L1_error)
 
-        /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
+        /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -4290,7 +4447,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":883
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":883
  * 
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"             # <<<<<<<<<<<<<<
@@ -4308,7 +4465,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":884
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":884
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"             # <<<<<<<<<<<<<<
@@ -4326,7 +4483,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":885
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":885
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"             # <<<<<<<<<<<<<<
@@ -4344,7 +4501,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":886
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":886
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"             # <<<<<<<<<<<<<<
@@ -4362,7 +4519,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":887
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":887
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"             # <<<<<<<<<<<<<<
@@ -4380,7 +4537,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":888
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":888
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"             # <<<<<<<<<<<<<<
@@ -4398,7 +4555,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":889
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":889
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"             # <<<<<<<<<<<<<<
@@ -4416,7 +4573,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":890
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":890
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"             # <<<<<<<<<<<<<<
@@ -4434,7 +4591,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":891
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":891
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"             # <<<<<<<<<<<<<<
@@ -4452,7 +4609,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":892
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":892
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"             # <<<<<<<<<<<<<<
@@ -4470,7 +4627,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":893
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":893
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"             # <<<<<<<<<<<<<<
@@ -4488,7 +4645,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":894
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":894
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"             # <<<<<<<<<<<<<<
@@ -4506,7 +4663,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":895
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":895
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"             # <<<<<<<<<<<<<<
@@ -4524,7 +4681,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":896
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":896
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf             # <<<<<<<<<<<<<<
@@ -4544,7 +4701,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":897
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":897
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd             # <<<<<<<<<<<<<<
@@ -4564,7 +4721,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":898
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":898
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg             # <<<<<<<<<<<<<<
@@ -4584,7 +4741,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":899
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":899
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"             # <<<<<<<<<<<<<<
@@ -4602,7 +4759,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":901
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":901
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -4621,7 +4778,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       }
       __pyx_L15:;
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":902
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":902
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *             f += 1             # <<<<<<<<<<<<<<
@@ -4630,7 +4787,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -4640,7 +4797,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       goto __pyx_L13;
     }
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":906
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":906
  *             # Cython ignores struct boundary information ("T{...}"),
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)             # <<<<<<<<<<<<<<
@@ -4653,7 +4810,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L13:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -4663,7 +4820,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":907
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":907
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)
  *     return f             # <<<<<<<<<<<<<<
@@ -4673,7 +4830,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   __pyx_r = __pyx_v_f;
   goto __pyx_L0;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -4698,7 +4855,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
  *     int _import_umath() except -1
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -4710,7 +4867,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("set_array_base", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1023
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1023
  * 
  * cdef inline void set_array_base(ndarray arr, object base):
  *     Py_INCREF(base) # important to do this before stealing the reference below!             # <<<<<<<<<<<<<<
@@ -4719,7 +4876,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   Py_INCREF(__pyx_v_base);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1024
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1024
  * cdef inline void set_array_base(ndarray arr, object base):
  *     Py_INCREF(base) # important to do this before stealing the reference below!
  *     PyArray_SetBaseObject(arr, base)             # <<<<<<<<<<<<<<
@@ -4728,7 +4885,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   (void)(PyArray_SetBaseObject(__pyx_v_arr, __pyx_v_base));
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
  *     int _import_umath() except -1
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -4740,7 +4897,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __Pyx_RefNannyFinishContext();
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
  *     PyArray_SetBaseObject(arr, base)
  * 
  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
@@ -4755,7 +4912,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("get_array_base", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1027
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1027
  * 
  * cdef inline object get_array_base(ndarray arr):
  *     base = PyArray_BASE(arr)             # <<<<<<<<<<<<<<
@@ -4764,7 +4921,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
  */
   __pyx_v_base = PyArray_BASE(__pyx_v_arr);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
  * cdef inline object get_array_base(ndarray arr):
  *     base = PyArray_BASE(arr)
  *     if base is NULL:             # <<<<<<<<<<<<<<
@@ -4774,7 +4931,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   __pyx_t_1 = ((__pyx_v_base == NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1029
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1029
  *     base = PyArray_BASE(arr)
  *     if base is NULL:
  *         return None             # <<<<<<<<<<<<<<
@@ -4785,7 +4942,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
     __pyx_r = Py_None; __Pyx_INCREF(Py_None);
     goto __pyx_L0;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
  * cdef inline object get_array_base(ndarray arr):
  *     base = PyArray_BASE(arr)
  *     if base is NULL:             # <<<<<<<<<<<<<<
@@ -4794,7 +4951,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
  */
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1030
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1030
  *     if base is NULL:
  *         return None
  *     return <object>base             # <<<<<<<<<<<<<<
@@ -4806,7 +4963,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   __pyx_r = ((PyObject *)__pyx_v_base);
   goto __pyx_L0;
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
  *     PyArray_SetBaseObject(arr, base)
  * 
  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
@@ -4821,7 +4978,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
  * # Versions of the import_* functions which are more suitable for
  * # Cython code.
  * cdef inline int import_array() except -1:             # <<<<<<<<<<<<<<
@@ -4842,7 +4999,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
   PyObject *__pyx_t_8 = NULL;
   __Pyx_RefNannySetupContext("import_array", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
  * # Cython code.
  * cdef inline int import_array() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -4858,7 +5015,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1036
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1036
  * cdef inline int import_array() except -1:
  *     try:
  *         _import_array()             # <<<<<<<<<<<<<<
@@ -4867,7 +5024,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
  */
       __pyx_t_4 = _import_array(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1036, __pyx_L3_error)
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
  * # Cython code.
  * cdef inline int import_array() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -4881,7 +5038,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     goto __pyx_L8_try_end;
     __pyx_L3_error:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1037
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1037
  *     try:
  *         _import_array()
  *     except Exception:             # <<<<<<<<<<<<<<
@@ -4896,7 +5053,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_GOTREF(__pyx_t_7);
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
  *         _import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -4912,7 +5069,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
  * # Cython code.
  * cdef inline int import_array() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -4927,7 +5084,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
  * # Versions of the import_* functions which are more suitable for
  * # Cython code.
  * cdef inline int import_array() except -1:             # <<<<<<<<<<<<<<
@@ -4950,7 +5107,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
  *         raise ImportError("numpy.core.multiarray failed to import")
  * 
  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
@@ -4971,7 +5128,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
   PyObject *__pyx_t_8 = NULL;
   __Pyx_RefNannySetupContext("import_umath", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
  * 
  * cdef inline int import_umath() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -4987,7 +5144,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1042
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1042
  * cdef inline int import_umath() except -1:
  *     try:
  *         _import_umath()             # <<<<<<<<<<<<<<
@@ -4996,7 +5153,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
  */
       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1042, __pyx_L3_error)
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
  * 
  * cdef inline int import_umath() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5010,7 +5167,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     goto __pyx_L8_try_end;
     __pyx_L3_error:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1043
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1043
  *     try:
  *         _import_umath()
  *     except Exception:             # <<<<<<<<<<<<<<
@@ -5025,7 +5182,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_GOTREF(__pyx_t_7);
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -5041,7 +5198,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
  * 
  * cdef inline int import_umath() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5056,7 +5213,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
  *         raise ImportError("numpy.core.multiarray failed to import")
  * 
  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
@@ -5079,7 +5236,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
   return __pyx_r;
 }
 
-/* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -5100,7 +5257,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
   PyObject *__pyx_t_8 = NULL;
   __Pyx_RefNannySetupContext("import_ufunc", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
  * 
  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5116,7 +5273,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1048
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1048
  * cdef inline int import_ufunc() except -1:
  *     try:
  *         _import_umath()             # <<<<<<<<<<<<<<
@@ -5125,7 +5282,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
  */
       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1048, __pyx_L3_error)
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
  * 
  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5139,7 +5296,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     goto __pyx_L8_try_end;
     __pyx_L3_error:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1049
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1049
  *     try:
  *         _import_umath()
  *     except Exception:             # <<<<<<<<<<<<<<
@@ -5153,7 +5310,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_GOTREF(__pyx_t_7);
 
-      /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1050
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1050
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -5167,7 +5324,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
  * 
  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5182,7 +5339,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -5425,8 +5582,9 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
 
 static PyMethodDef __pyx_methods[] = {
   {"ft_hash", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash},
-  {"ft_hash_broken", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_broken},
-  {"compute_ngrams", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_4compute_ngrams},
+  {"ft_hash_bytes", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_bytes, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_bytes},
+  {"ft_hash_broken", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_5ft_hash_broken, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_4ft_hash_broken},
+  {"compute_ngrams", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams},
   {0, 0, 0, 0}
 };
 
@@ -5509,7 +5667,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 91, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 122, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 272, __pyx_L1_error)
   __pyx_builtin_RuntimeError = __Pyx_GetBuiltinName(__pyx_n_s_RuntimeError); if (!__pyx_builtin_RuntimeError) __PYX_ERR(1, 856, __pyx_L1_error)
   __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(1, 1038, __pyx_L1_error)
@@ -5522,7 +5680,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -5533,7 +5691,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__3);
   __Pyx_GIVEREF(__pyx_tuple__3);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -5544,7 +5702,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__4);
   __Pyx_GIVEREF(__pyx_tuple__4);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -5555,7 +5713,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__5);
   __Pyx_GIVEREF(__pyx_tuple__5);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -5566,7 +5724,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__6);
   __Pyx_GIVEREF(__pyx_tuple__6);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -5577,7 +5735,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__7);
   __Pyx_GIVEREF(__pyx_tuple__7);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
  *         _import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -5588,7 +5746,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__8);
   __Pyx_GIVEREF(__pyx_tuple__8);
 
-  /* "../../.virtualenvs/release/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -5929,62 +6087,62 @@ if (!__Pyx_RefNanny) {
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "gensim/models/_utils_any2vec.pyx":10
- * """General functions used for any2vec models."""
+  /* "gensim/models/_utils_any2vec.pyx":11
  * 
+ * from libc.stdint cimport uint32_t, int8_t
  * from six import PY2             # <<<<<<<<<<<<<<
  * import numpy as np
  * cimport numpy as np
  */
-  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 10, __pyx_L1_error)
+  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 11, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_n_s_PY2);
   __Pyx_GIVEREF(__pyx_n_s_PY2);
   PyList_SET_ITEM(__pyx_t_1, 0, __pyx_n_s_PY2);
-  __pyx_t_2 = __Pyx_Import(__pyx_n_s_six, __pyx_t_1, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 10, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_Import(__pyx_n_s_six, __pyx_t_1, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 11, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_2, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 10, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_2, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 11, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_PY2, __pyx_t_1) < 0) __PYX_ERR(0, 10, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_PY2, __pyx_t_1) < 0) __PYX_ERR(0, 11, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":11
- * 
+  /* "gensim/models/_utils_any2vec.pyx":12
+ * from libc.stdint cimport uint32_t, int8_t
  * from six import PY2
  * import numpy as np             # <<<<<<<<<<<<<<
  * cimport numpy as np
  * 
  */
-  __pyx_t_2 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 11, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 12, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_2) < 0) __PYX_ERR(0, 11, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_2) < 0) __PYX_ERR(0, 12, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":21
+  /* "gensim/models/_utils_any2vec.pyx":22
  *     return ord(b)
  * 
  * _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 21, __pyx_L1_error)
+  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 22, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) __PYX_ERR(0, 21, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) __PYX_ERR(0, 22, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_3) {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 21, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 22, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_2 = __pyx_t_1;
     __pyx_t_1 = 0;
   } else {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 21, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 22, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_2 = __pyx_t_1;
     __pyx_t_1 = 0;
   }
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_byte_to_int, __pyx_t_2) < 0) __PYX_ERR(0, 21, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_byte_to_int, __pyx_t_2) < 0) __PYX_ERR(0, 22, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
   /* "gensim/models/_utils_any2vec.pyx":1
@@ -8310,6 +8468,37 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value)
     }
 }
 
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value) {
+    const uint32_t neg_one = (uint32_t) ((uint32_t) 0 - (uint32_t) 1), const_zero = (uint32_t) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(uint32_t) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(uint32_t) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(uint32_t) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(uint32_t) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(uint32_t) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(uint32_t),
+                                     little, !is_unsigned);
+    }
+}
+
 /* Declarations */
 #if CYTHON_CCOMPLEX
   #ifdef __cplusplus
@@ -8871,6 +9060,195 @@ static CYTHON_INLINE unsigned int __Pyx_PyInt_As_unsigned_int(PyObject *x) {
     return (unsigned int) -1;
 }
 
+/* CIntFromPy */
+static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *x) {
+    const char neg_one = (char) ((char) 0 - (char) 1), const_zero = (char) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(char) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(char, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (char) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (char) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(char, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(char) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) >= 2 * PyLong_SHIFT) {
+                            return (char) (((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(char) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) >= 3 * PyLong_SHIFT) {
+                            return (char) (((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(char) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) >= 4 * PyLong_SHIFT) {
+                            return (char) (((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (char) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(char) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(char) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (char) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(char, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(char,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(char) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) {
+                            return (char) (((char)-1)*(((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(char) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) {
+                            return (char) ((((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
+                            return (char) (((char)-1)*(((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(char) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
+                            return (char) ((((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
+                            return (char) (((char)-1)*(((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(char) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
+                            return (char) ((((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(char) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(char) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            char val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (char) -1;
+        }
+    } else {
+        char val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (char) -1;
+        val = __Pyx_PyInt_As_char(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to char");
+    return (char) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to char");
+    return (char) -1;
+}
+
 /* CIntFromPy */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
     const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index f27d7e400f..f5672c0b14 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -7,6 +7,7 @@
 
 """General functions used for any2vec models."""
 
+from libc.stdint cimport uint32_t, int8_t
 from six import PY2
 import numpy as np
 cimport numpy as np
@@ -26,6 +27,11 @@ cpdef ft_hash(unicode string):
     Reproduce `hash method from Facebook fastText implementation
     <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.
 
+    This function is expensive because it encodes each input string as UTF-8,
+    and this can accumulate to a high computational cost if there are many
+    strings.  If possible, convert your strings to bytes and use the faster
+    :py:func:`ft_hash_bytes` function instead.
+
     Parameters
     ----------
     string : unicode
@@ -44,6 +50,31 @@ cpdef ft_hash(unicode string):
     return h
 
 
+cpdef ft_hash_bytes(bytes bytez):
+    """Calculate hash based on `bytez`.
+    Reproduce `hash method from Facebook fastText implementation
+    <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.
+
+    Parameters
+    ----------
+    bytez : bytes
+        The string whose hash needs to be calculated, encoded as UTF-8.
+
+    Returns
+    -------
+    unsigned int
+        The hash of the string.
+
+    """
+    cdef uint32_t h = 2166136261
+    cdef char b
+
+    for b in bytez:
+        h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+        h = h * 16777619
+    return h
+
+
 cpdef ft_hash_broken(unicode string):
     """Calculate hash based on `string`.
 
diff --git a/gensim/models/fasttext.py b/gensim/models/fasttext.py
index f25ff4481d..b51494578c 100644
--- a/gensim/models/fasttext.py
+++ b/gensim/models/fasttext.py
@@ -98,7 +98,7 @@
 from gensim.models.word2vec import Word2VecVocab, Word2VecTrainables, train_sg_pair, train_cbow_pair
 from gensim.models.keyedvectors import FastTextKeyedVectors
 from gensim.models.base_any2vec import BaseWordEmbeddingsModel
-from gensim.models.utils_any2vec import _compute_ngrams, _ft_hash, _ft_hash_broken
+from gensim.models.utils_any2vec import ft_ngram_hashes, ft_ngram_hashes_broken
 from smart_open import smart_open
 
 from gensim.utils import deprecated, call_on_class_only
@@ -554,7 +554,7 @@ def _clear_post_train(self):
         self.wv.buckets_word = None
 
     def estimate_memory(self, vocab_size=None, report=None):
-        hash_fn = _ft_hash if self.wv.compatible_hash else _ft_hash_broken
+        hash_fn = ft_ngram_hashes if self.wv.compatible_hash else ft_ngram_hashes_broken
 
         vocab_size = vocab_size or len(self.wv.vocab)
         vec_size = self.vector_size * np.dtype(np.float32).itemsize
@@ -574,9 +574,9 @@ def estimate_memory(self, vocab_size=None, report=None):
                 buckets = set()
                 num_ngrams = 0
                 for word in self.wv.vocab:
-                    ngrams = _compute_ngrams(word, self.wv.min_n, self.wv.max_n)
-                    num_ngrams += len(ngrams)
-                    buckets.update(hash_fn(ng) % self.trainables.bucket for ng in ngrams)
+                    hashes = hash_fn(word, self.wv.min_n, self.wv.max_n, self.trainables.bucket)
+                    num_ngrams += len(hashes)
+                    buckets.update(hashes)
                 num_buckets = len(buckets)
             report['syn0_ngrams'] = num_buckets * vec_size
             # A tuple (48 bytes) with num_ngrams_word ints (8 bytes) for each word
diff --git a/gensim/models/keyedvectors.py b/gensim/models/keyedvectors.py
index d9dad1cc56..26d6ecbf98 100644
--- a/gensim/models/keyedvectors.py
+++ b/gensim/models/keyedvectors.py
@@ -182,9 +182,8 @@
 from gensim.models.utils_any2vec import (
     _save_word2vec_format,
     _load_word2vec_format,
-    _compute_ngrams,
-    _ft_hash,
-    _ft_hash_broken
+    ft_ngram_hashes,
+    ft_ngram_hashes_broken,
 )
 from gensim.similarities.termsim import TermSimilarityIndex, SparseTermSimilarityMatrix
 
@@ -2012,9 +2011,9 @@ def __contains__(self, word):
         if word in self.vocab:
             return True
         else:
-            hash_fn = _ft_hash if self.compatible_hash else _ft_hash_broken
-            char_ngrams = _compute_ngrams(word, self.min_n, self.max_n)
-            return any(hash_fn(ng) % self.bucket in self.hash2index for ng in char_ngrams)
+            hash_fn = ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken
+            hashes = hash_fn(word, self.min_n, self.max_n, self.bucket)
+            return any(h in self.hash2index for h in hashes)
 
     def save(self, *args, **kwargs):
         """Save object.
@@ -2056,23 +2055,20 @@ def word_vec(self, word, use_norm=False):
             If word and all ngrams not in vocabulary.
 
         """
-        hash_fn = _ft_hash if self.compatible_hash else _ft_hash_broken
+        hash_fn = ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken
 
         if word in self.vocab:
             return super(FastTextKeyedVectors, self).word_vec(word, use_norm)
         elif self.bucket == 0:
             raise KeyError('cannot calculate vector for OOV word without ngrams')
         else:
-            # from gensim.models.fasttext import compute_ngrams
             word_vec = np.zeros(self.vectors_ngrams.shape[1], dtype=np.float32)
-            ngrams = _compute_ngrams(word, self.min_n, self.max_n)
             if use_norm:
                 ngram_weights = self.vectors_ngrams_norm
             else:
                 ngram_weights = self.vectors_ngrams
             ngrams_found = 0
-            for ngram in ngrams:
-                ngram_hash = hash_fn(ngram) % self.bucket
+            for ngram_hash in hash_fn(word, self.min_n, self.max_n, self.bucket):
                 if ngram_hash in self.hash2index:
                     word_vec += ngram_weights[self.hash2index[ngram_hash]]
                     ngrams_found += 1
@@ -2130,7 +2126,7 @@ def init_ngrams_weights(self, seed):
             self.min_n,
             self.max_n,
             self.bucket,
-            _ft_hash if self.compatible_hash else _ft_hash_broken,
+            ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken,
             self.hash2index
         )
         self.num_ngram_vectors = len(ngram_indices)
@@ -2153,7 +2149,7 @@ def update_ngrams_weights(self, seed, old_vocab_len):
             self.min_n,
             self.max_n,
             self.bucket,
-            _ft_hash if self.compatible_hash else _ft_hash_broken,
+            ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken,
             self.hash2index
         )
         num_new_ngrams = len(new_ngram_hashes)
@@ -2215,7 +2211,7 @@ def init_post_load(self, vectors, match_gensim=False):
                 self.min_n,
                 self.max_n,
                 self.bucket,
-                _ft_hash if self.compatible_hash else _ft_hash_broken,
+                ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken,
                 dict(),  # we don't care what goes here in this case
             )
             ngram_hashes = sorted(set(ngram_hashes))
@@ -2237,15 +2233,14 @@ def adjust_vectors(self):
         if self.bucket == 0:
             return
 
-        hash_fn = _ft_hash if self.compatible_hash else _ft_hash_broken
+        hash_fn = ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken
 
         for w, v in self.vocab.items():
             word_vec = np.copy(self.vectors_vocab[v.index])
-            ngrams = _compute_ngrams(w, self.min_n, self.max_n)
-            for ngram in ngrams:
-                ngram_index = self.hash2index[hash_fn(ngram) % self.bucket]
-                word_vec += self.vectors_ngrams[ngram_index]
-            word_vec /= len(ngrams) + 1
+            ngram_hashes = hash_fn(w, self.min_n, self.max_n, self.bucket)
+            for nh in ngram_hashes:
+                word_vec += self.vectors_ngrams[self.hash2index[nh]]
+            word_vec /= len(ngram_hashes) + 1
             self.vectors[v.index] = word_vec
 
 
@@ -2293,8 +2288,7 @@ def _process_fasttext_vocab(iterable, min_n, max_n, num_buckets, hash_fn, hash2i
 
     for word, vocab in iterable:
         wi = []
-        for ngram in _compute_ngrams(word, min_n, max_n):
-            ngram_hash = hash_fn(ngram) % num_buckets
+        for ngram_hash in hash_fn(word, min_n, max_n, num_buckets):
             if ngram_hash not in hash2index:
                 #
                 # This is a new ngram.  Reserve a new index in hash2index.
diff --git a/gensim/models/utils_any2vec.py b/gensim/models/utils_any2vec.py
index 74d0effcff..7b6e9a499a 100644
--- a/gensim/models/utils_any2vec.py
+++ b/gensim/models/utils_any2vec.py
@@ -4,7 +4,21 @@
 # Author: Shiva Manne <s.manne@rare-technologies.com>
 # Copyright (C) 2018 RaRe Technologies s.r.o.
 
-"""General functions used for any2vec models."""
+"""General functions used for any2vec models.
+
+One of the goals of this module is to provide an abstraction over the Cython
+extensions for FastText.  If they are not available, then the module substitutes
+slower Python versions in their place.
+
+Another related set of FastText functionality is computing ngrams for a word,
+and then hashing them.  The :py:func:`ft_ngram_hashes` and
+:py:func:`ft_ngram_hashes_broken` achieves this goal.
+
+Finally, the module also exposes "working" and "broken" hash functions for
+FastText.  It does this without abstracting them away, because the correct
+function to use depends on the current model.
+
+"""
 
 import logging
 import numpy as np
@@ -30,18 +44,18 @@ def _byte_to_int_py2(b):
 
 
 #
-# Define this here so we can unittest here.  Only use this function if the
-# faster C version fails to import.
+# Define this here so we can unittest this function directly.
+# Only use this function if the faster C version fails to import.
 #
-def _ft_hash_py(string):
-    """Calculate hash based on `string`.
+def _ft_hash_py_bytes(bytez):
+    """Calculate hash based on `bytez`.
     Reproduce `hash method from Facebook fastText implementation
     <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.
 
     Parameters
     ----------
-    string : str
-        The string whose hash needs to be calculated.
+    bytez : bytes
+        The string whose hash needs to be calculated, encoded as UTF-8.
 
     Returns
     -------
@@ -51,8 +65,8 @@ def _ft_hash_py(string):
     """
     old_settings = np.seterr(all='ignore')
     h = np.uint32(2166136261)
-    for c in string.encode('utf-8'):
-        h = h ^ np.uint32(np.int8(_byte_to_int(c)))
+    for b in bytez:
+        h = h ^ np.uint32(np.int8(_byte_to_int(b)))
         h = h * np.uint32(16777619)
     np.seterr(**old_settings)
     return h
@@ -88,44 +102,80 @@ def _ft_hash_py_broken(string):
 
 try:
     from gensim.models._utils_any2vec import (
-        ft_hash as _ft_hash_cy,
+        compute_ngrams,
         ft_hash_broken as _ft_hash_cy_broken,
-        compute_ngrams as _compute_ngrams
+        ft_hash_bytes as _ft_hash_cy_bytes,
     )
-    _ft_hash = _ft_hash_cy
+    _ft_hash_bytes = _ft_hash_cy_bytes
     _ft_hash_broken = _ft_hash_cy_broken
+    FAST_VERSION = 0
 except ImportError:
+    # failed... fall back to plain python
     FAST_VERSION = -1
-
-    _ft_hash = _ft_hash_py
+    _ft_hash_bytes = _ft_hash_py_bytes
     _ft_hash_broken = _ft_hash_py_broken
 
-    # failed... fall back to plain python
-    def _compute_ngrams(word, min_n, max_n):
-        """Get the list of all possible ngrams for a given word.
 
-        Parameters
-        ----------
-        word : str
-            The word whose ngrams need to be computed.
-        min_n : int
-            Minimum character length of the ngrams.
-        max_n : int
-            Maximum character length of the ngrams.
-
-        Returns
-        -------
-        list of str
-            Sequence of character ngrams.
+def ft_ngram_hashes(word, minn, maxn, num_buckets):
+    """Calculate the ngrams of the word and hash them.
 
-        """
-        BOW, EOW = ('<', '>')  # Used by FastText to attach to all words as prefix and suffix
-        extended_word = BOW + word + EOW
-        ngrams = []
-        for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
-            for i in range(0, len(extended_word) - ngram_length + 1):
-                ngrams.append(extended_word[i:i + ngram_length])
-        return ngrams
+    Do this in a way that is compatible with the original Facebook implementation.
+
+    Parameters
+    ----------
+    word : str
+        The word to calculate ngram hashes for.
+    minn : int
+        Minimum ngram length
+    maxn : int
+        Maximum ngram length
+    num_buckets : int
+        The number of buckets
+
+    Returns
+    -------
+        A list of hashes (integers), one per each detected ngram.
+
+    """
+    ngrams = compute_ngrams(word, minn, maxn)
+    #
+    # This is a trick to avoid encoding each ngram separately, which is
+    # computationally expensive.  It works for two reasons:
+    #
+    # 1) ngrams are guaranteed to _not_ have any spaces, because that is the
+    # character we use to split sentences into words.
+    # 2) space is an ASCII character, so it survives UTF-8 encoding unchanged.
+    #
+    encoded_ngrams = (" ".join(ngrams)).encode("utf-8").split()
+    hashes = [_ft_hash_bytes(en) % num_buckets for en in encoded_ngrams]
+    return hashes
+
+
+def ft_ngram_hashes_broken(word, minn, maxn, num_buckets):
+    """Calculate the ngrams of the word and hash them.
+
+    Do this in a way that is incompatible with the original Facebook
+    implementation, but compatible with older versions of Gensim.
+
+    Parameters
+    ----------
+    word : str
+        The word to calculate ngram hashes for.
+    minn : int
+        Minimum ngram length
+    maxn : int
+        Maximum ngram length
+    num_buckets : int
+        The number of buckets
+
+    Returns
+    -------
+        A list of hashes (integers), one per each detected ngram.
+
+    """
+    ngrams = compute_ngrams(word, minn, maxn)
+    hashes = [_ft_hash_broken(n) % num_buckets for n in ngrams]
+    return hashes
 
 
 def _save_word2vec_format(fname, vocab, vectors, fvocab=None, binary=False, total_vec=None):
diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index 74ca8b941f..0be21b94ca 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -269,12 +269,14 @@ def hash_main(alg):
     import six
 
     assert six.PY3, 'this only works under Py3'
+    assert gensim.models.utils_any2vec.FAST_VERSION == 0, 'Cython extensions are broken'
 
     hashmap = {
-        'py': gensim.models.utils_any2vec._ft_hash_py,
         'py_broken': gensim.models.utils_any2vec._ft_hash_py_broken,
-        'cy': gensim.models.utils_any2vec._ft_hash_py,
+        'py_bytes': gensim.models.utils_any2vec._ft_hash_py_bytes,
+        'cy': gensim.models.utils_any2vec._ft_hash_cy,
         'cy_broken': gensim.models.utils_any2vec._ft_hash_py_broken,
+        'cy_bytes': gensim.models.utils_any2vec._ft_hash_cy_bytes,
     }
     try:
         fun = hashmap[alg]
@@ -282,7 +284,11 @@ def hash_main(alg):
         raise KeyError('invalid alg: %r expected one of %r' % (alg, sorted(hashmap)))
 
     for line in sys.stdin:
-        for word in line.rstrip().split(' '):
+        if 'bytes' in alg:
+            words = line.encode('utf-8').rstrip().split(b' ')
+        else:
+            words = line.rstrip().split(' ')
+        for word in words:
             print('u%r: %r,' % (word, fun(word)))
 
 
@@ -293,7 +299,7 @@ def setUp(self):
         #
         # $ echo word1 ... wordN | python -c 'from gensim.test.test_utils import hash_main;hash_main("alg")'  # noqa: E501
         #
-        # where alg is one of py, py_broken, cy, cy_broken.
+        # where alg is one of py_bytes, py_broken, cy_bytes, cy_broken.
 
         #
         self.expected = {
@@ -330,12 +336,12 @@ def setUp(self):
         }
 
     def test_python(self):
-        actual = {k: gensim.models.utils_any2vec._ft_hash_py(k) for k in self.expected}
+        actual = {k: gensim.models.utils_any2vec._ft_hash_py_bytes(k.encode('utf-8')) for k in self.expected}
         self.assertEqual(self.expected, actual)
 
     @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
     def test_cython(self):
-        actual = {k: gensim.models.utils_any2vec._ft_hash_cy(k) for k in self.expected}
+        actual = {k: gensim.models.utils_any2vec._ft_hash_cy_bytes(k.encode('utf-8')) for k in self.expected}
         self.assertEqual(self.expected, actual)
 
     def test_python_broken(self):

From e458ff03bb2c9bad2603fe9b2cdf8c8d4490b0ce Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Sun, 20 Jan 2019 19:30:19 +1100
Subject: [PATCH 05/32] remove obsolete ft_hash function

---
 gensim/models/_utils_any2vec.c   | 1881 ++++++++++++------------------
 gensim/models/_utils_any2vec.pyx |   28 -
 2 files changed, 758 insertions(+), 1151 deletions(-)

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index d78f295799..3f498f12e2 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -1199,75 +1199,6 @@ static CYTHON_INLINE Py_UCS4 __Pyx_PyUnicode_AsPy_UCS4(PyObject*);
 #endif
 static long __Pyx__PyObject_Ord(PyObject* c);
 
-/* GetModuleGlobalName.proto */
-#if CYTHON_USE_DICT_VERSIONS
-#define __Pyx_GetModuleGlobalName(var, name)  {\
-    static PY_UINT64_T __pyx_dict_version = 0;\
-    static PyObject *__pyx_dict_cached_value = NULL;\
-    (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
-        (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
-        __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
-    PY_UINT64_T __pyx_dict_version;\
-    PyObject *__pyx_dict_cached_value;\
-    (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
-#else
-#define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
-#endif
-
-/* PyCFunctionFastCall.proto */
-#if CYTHON_FAST_PYCCALL
-static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
-#else
-#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
-#endif
-
-/* PyFunctionFastCall.proto */
-#if CYTHON_FAST_PYCALL
-#define __Pyx_PyFunction_FastCall(func, args, nargs)\
-    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
-#if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
-#else
-#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
-#endif
-#define __Pyx_BUILD_ASSERT_EXPR(cond)\
-    (sizeof(char [1 - 2*!(cond)]) - 1)
-#ifndef Py_MEMBER_SIZE
-#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
-#endif
-  static size_t __pyx_pyframe_localsplus_offset = 0;
-  #include "frameobject.h"
-  #define __Pxy_PyFrame_Initialize_Offsets()\
-    ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
-     (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
-  #define __Pyx_PyFrame_GetLocalsplus(frame)\
-    (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
-#endif
-
-/* PyObjectCall.proto */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
-#else
-#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
-#endif
-
-/* PyObjectCall2Args.proto */
-static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2);
-
-/* PyObjectCallMethO.proto */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
-#endif
-
-/* PyObjectCallOneArg.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
-
 /* ArgTypeTest.proto */
 #define __Pyx_ArgTypeTest(obj, type, none_allowed, name, exact)\
     ((likely((Py_TYPE(obj) == type) | (none_allowed && (obj == Py_None)))) ? 1 :\
@@ -1307,6 +1238,13 @@ static CYTHON_INLINE int __Pyx_init_unicode_iteration(
 static PyObject* __Pyx_PyUnicode_Join(PyObject* value_tuple, Py_ssize_t value_count, Py_ssize_t result_ulength,
                                       Py_UCS4 max_char);
 
+/* PyObjectCall.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
+
 /* PyIntBinop.proto */
 #if !CYTHON_COMPILING_IN_PYPY
 static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, long intval, int inplace);
@@ -1387,6 +1325,44 @@ static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject
 /* RaiseException.proto */
 static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
 
+/* PyCFunctionFastCall.proto */
+#if CYTHON_FAST_PYCCALL
+static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
+#else
+#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
+#endif
+
+/* PyFunctionFastCall.proto */
+#if CYTHON_FAST_PYCALL
+#define __Pyx_PyFunction_FastCall(func, args, nargs)\
+    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
+#if 1 || PY_VERSION_HEX < 0x030600B1
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
+#else
+#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
+#endif
+#define __Pyx_BUILD_ASSERT_EXPR(cond)\
+    (sizeof(char [1 - 2*!(cond)]) - 1)
+#ifndef Py_MEMBER_SIZE
+#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
+#endif
+  static size_t __pyx_pyframe_localsplus_offset = 0;
+  #include "frameobject.h"
+  #define __Pxy_PyFrame_Initialize_Offsets()\
+    ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
+     (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
+  #define __Pyx_PyFrame_GetLocalsplus(frame)\
+    (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
+#endif
+
+/* PyObjectCallMethO.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
+#endif
+
+/* PyObjectCallOneArg.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
 /* DictGetItem.proto */
 #if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
 static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key);
@@ -1523,6 +1499,27 @@ static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);
 /* ImportFrom.proto */
 static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);
 
+/* GetModuleGlobalName.proto */
+#if CYTHON_USE_DICT_VERSIONS
+#define __Pyx_GetModuleGlobalName(var, name)  {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
+        (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
+        __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
+}
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
+    PY_UINT64_T __pyx_dict_version;\
+    PyObject *__pyx_dict_cached_value;\
+    (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
+}
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
+#else
+#define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
+#endif
+
 /* CLineInTraceback.proto */
 #ifdef CYTHON_CLINE_IN_TRACEBACK
 #define __Pyx_CLineForTraceback(tstate, c_line)  (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0)
@@ -1553,10 +1550,10 @@ static void __Pyx_AddTraceback(const char *funcname, int c_line,
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
 
 /* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value);
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value);
 
 /* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value);
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value);
 
 /* RealImag.proto */
 #if CYTHON_CCOMPLEX
@@ -1729,7 +1726,6 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, cha
 static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObject *); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObject *); /*proto*/
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
@@ -1749,7 +1745,6 @@ static const char __pyx_k__2[] = ">";
 static const char __pyx_k_np[] = "np";
 static const char __pyx_k_PY2[] = "PY2";
 static const char __pyx_k_six[] = "six";
-static const char __pyx_k_int8[] = "int8";
 static const char __pyx_k_main[] = "__main__";
 static const char __pyx_k_name[] = "__name__";
 static const char __pyx_k_test[] = "__test__";
@@ -1760,7 +1755,6 @@ static const char __pyx_k_min_n[] = "min_n";
 static const char __pyx_k_numpy[] = "numpy";
 static const char __pyx_k_range[] = "range";
 static const char __pyx_k_import[] = "__import__";
-static const char __pyx_k_uint32[] = "uint32";
 static const char __pyx_k_ValueError[] = "ValueError";
 static const char __pyx_k_ImportError[] = "ImportError";
 static const char __pyx_k_byte_to_int[] = "_byte_to_int";
@@ -1793,7 +1787,6 @@ static PyObject *__pyx_n_s_byte_to_int;
 static PyObject *__pyx_n_s_cfunc_to_py;
 static PyObject *__pyx_n_s_cline_in_traceback;
 static PyObject *__pyx_n_s_import;
-static PyObject *__pyx_n_s_int8;
 static PyObject *__pyx_n_s_main;
 static PyObject *__pyx_n_s_max_n;
 static PyObject *__pyx_n_s_min_n;
@@ -1808,21 +1801,18 @@ static PyObject *__pyx_n_s_range;
 static PyObject *__pyx_n_s_six;
 static PyObject *__pyx_kp_s_stringsource;
 static PyObject *__pyx_n_s_test;
-static PyObject *__pyx_n_s_uint32;
 static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_n_s_word;
 static PyObject *__pyx_n_s_wrap;
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez); /* proto */
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez); /* proto */
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /* proto */
 static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_int_0;
 static PyObject *__pyx_int_1;
-static PyObject *__pyx_int_16777619;
 static PyObject *__pyx_tuple__3;
 static PyObject *__pyx_tuple__4;
 static PyObject *__pyx_tuple__5;
@@ -1926,414 +1916,92 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
 /* "gensim/models/_utils_any2vec.pyx":25
  * 
  * 
- * cpdef ft_hash(unicode string):             # <<<<<<<<<<<<<<
- *     """Calculate hash based on `string`.
+ * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
+ *     """Calculate hash based on `bytez`.
  *     Reproduce `hash method from Facebook fastText implementation
  */
 
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(PyObject *__pyx_v_string, CYTHON_UNUSED int __pyx_skip_dispatch) {
-  unsigned int __pyx_v_h;
-  PyObject *__pyx_v_c = NULL;
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes(PyObject *__pyx_self, PyObject *__pyx_v_bytez); /*proto*/
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject *__pyx_v_bytez, CYTHON_UNUSED int __pyx_skip_dispatch) {
+  uint32_t __pyx_v_h;
+  char __pyx_v_b;
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
-  PyObject *__pyx_t_2 = NULL;
-  PyObject *(*__pyx_t_3)(PyObject *);
-  PyObject *__pyx_t_4 = NULL;
-  PyObject *__pyx_t_5 = NULL;
+  char *__pyx_t_2;
+  char *__pyx_t_3;
+  char *__pyx_t_4;
+  char *__pyx_t_5;
   PyObject *__pyx_t_6 = NULL;
-  PyObject *__pyx_t_7 = NULL;
-  PyObject *__pyx_t_8 = NULL;
-  PyObject *__pyx_t_9 = NULL;
-  PyObject *__pyx_t_10 = NULL;
-  PyObject *__pyx_t_11 = NULL;
-  PyObject *__pyx_t_12 = NULL;
-  unsigned int __pyx_t_13;
-  __Pyx_RefNannySetupContext("ft_hash", 0);
+  __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":46
+  /* "gensim/models/_utils_any2vec.pyx":41
  * 
  *     """
- *     cdef unsigned int h = 2166136261             # <<<<<<<<<<<<<<
- *     for c in string.encode("utf-8"):
- *         h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))
+ *     cdef uint32_t h = 2166136261             # <<<<<<<<<<<<<<
+ *     cdef char b
+ * 
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":47
- *     """
- *     cdef unsigned int h = 2166136261
- *     for c in string.encode("utf-8"):             # <<<<<<<<<<<<<<
- *         h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))
- *         h = np.uint32(h * np.uint32(16777619))
+  /* "gensim/models/_utils_any2vec.pyx":44
+ *     cdef char b
+ * 
+ *     for b in bytez:             # <<<<<<<<<<<<<<
+ *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+ *         h = h * 16777619
  */
-  if (unlikely(__pyx_v_string == Py_None)) {
-    PyErr_Format(PyExc_AttributeError, "'NoneType' object has no attribute '%.30s'", "encode");
-    __PYX_ERR(0, 47, __pyx_L1_error)
+  if (unlikely(__pyx_v_bytez == Py_None)) {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
+    __PYX_ERR(0, 44, __pyx_L1_error)
   }
-  __pyx_t_1 = PyUnicode_AsUTF8String(__pyx_v_string); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 47, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 47, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = Py_TYPE(__pyx_t_2)->tp_iternext; if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 47, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  for (;;) {
-    {
-      __pyx_t_1 = __pyx_t_3(__pyx_t_2);
-      if (unlikely(!__pyx_t_1)) {
-        PyObject* exc_type = PyErr_Occurred();
-        if (exc_type) {
-          if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(0, 47, __pyx_L1_error)
-        }
-        break;
-      }
-      __Pyx_GOTREF(__pyx_t_1);
-    }
-    __Pyx_XDECREF_SET(__pyx_v_c, __pyx_t_1);
-    __pyx_t_1 = 0;
+  __Pyx_INCREF(__pyx_v_bytez);
+  __pyx_t_1 = __pyx_v_bytez;
+  __pyx_t_3 = PyBytes_AS_STRING(__pyx_t_1);
+  __pyx_t_4 = (__pyx_t_3 + PyBytes_GET_SIZE(__pyx_t_1));
+  for (__pyx_t_5 = __pyx_t_3; __pyx_t_5 < __pyx_t_4; __pyx_t_5++) {
+    __pyx_t_2 = __pyx_t_5;
+    __pyx_v_b = (__pyx_t_2[0]);
 
-    /* "gensim/models/_utils_any2vec.pyx":48
- *     cdef unsigned int h = 2166136261
- *     for c in string.encode("utf-8"):
- *         h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))             # <<<<<<<<<<<<<<
- *         h = np.uint32(h * np.uint32(16777619))
+    /* "gensim/models/_utils_any2vec.pyx":45
+ * 
+ *     for b in bytez:
+ *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss             # <<<<<<<<<<<<<<
+ *         h = h * 16777619
  *     return h
  */
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_uint32); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_5);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_4);
-    __Pyx_GetModuleGlobalName(__pyx_t_7, __pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_uint32); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_8);
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_GetModuleGlobalName(__pyx_t_9, __pyx_n_s_np); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_9);
-    __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_t_9, __pyx_n_s_int8); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_10);
-    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-    __Pyx_GetModuleGlobalName(__pyx_t_11, __pyx_n_s_byte_to_int); if (unlikely(!__pyx_t_11)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_11);
-    __pyx_t_12 = NULL;
-    if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_11))) {
-      __pyx_t_12 = PyMethod_GET_SELF(__pyx_t_11);
-      if (likely(__pyx_t_12)) {
-        PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_11);
-        __Pyx_INCREF(__pyx_t_12);
-        __Pyx_INCREF(function);
-        __Pyx_DECREF_SET(__pyx_t_11, function);
-      }
-    }
-    __pyx_t_9 = (__pyx_t_12) ? __Pyx_PyObject_Call2Args(__pyx_t_11, __pyx_t_12, __pyx_v_c) : __Pyx_PyObject_CallOneArg(__pyx_t_11, __pyx_v_c);
-    __Pyx_XDECREF(__pyx_t_12); __pyx_t_12 = 0;
-    if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_9);
-    __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-    __pyx_t_11 = NULL;
-    if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_10))) {
-      __pyx_t_11 = PyMethod_GET_SELF(__pyx_t_10);
-      if (likely(__pyx_t_11)) {
-        PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_10);
-        __Pyx_INCREF(__pyx_t_11);
-        __Pyx_INCREF(function);
-        __Pyx_DECREF_SET(__pyx_t_10, function);
-      }
-    }
-    __pyx_t_7 = (__pyx_t_11) ? __Pyx_PyObject_Call2Args(__pyx_t_10, __pyx_t_11, __pyx_t_9) : __Pyx_PyObject_CallOneArg(__pyx_t_10, __pyx_t_9);
-    __Pyx_XDECREF(__pyx_t_11); __pyx_t_11 = 0;
-    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-    if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_7);
-    __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-    __pyx_t_10 = NULL;
-    if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_8))) {
-      __pyx_t_10 = PyMethod_GET_SELF(__pyx_t_8);
-      if (likely(__pyx_t_10)) {
-        PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_8);
-        __Pyx_INCREF(__pyx_t_10);
-        __Pyx_INCREF(function);
-        __Pyx_DECREF_SET(__pyx_t_8, function);
-      }
-    }
-    __pyx_t_6 = (__pyx_t_10) ? __Pyx_PyObject_Call2Args(__pyx_t_8, __pyx_t_10, __pyx_t_7) : __Pyx_PyObject_CallOneArg(__pyx_t_8, __pyx_t_7);
-    __Pyx_XDECREF(__pyx_t_10); __pyx_t_10 = 0;
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_6);
-    __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_8 = PyNumber_Xor(__pyx_t_4, __pyx_t_6); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_8);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = NULL;
-    if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_5))) {
-      __pyx_t_6 = PyMethod_GET_SELF(__pyx_t_5);
-      if (likely(__pyx_t_6)) {
-        PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_5);
-        __Pyx_INCREF(__pyx_t_6);
-        __Pyx_INCREF(function);
-        __Pyx_DECREF_SET(__pyx_t_5, function);
-      }
-    }
-    __pyx_t_1 = (__pyx_t_6) ? __Pyx_PyObject_Call2Args(__pyx_t_5, __pyx_t_6, __pyx_t_8) : __Pyx_PyObject_CallOneArg(__pyx_t_5, __pyx_t_8);
-    __Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_13 = __Pyx_PyInt_As_unsigned_int(__pyx_t_1); if (unlikely((__pyx_t_13 == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 48, __pyx_L1_error)
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_v_h = __pyx_t_13;
+    __pyx_v_h = (__pyx_v_h ^ ((uint32_t)((int8_t)__pyx_v_b)));
 
-    /* "gensim/models/_utils_any2vec.pyx":49
- *     for c in string.encode("utf-8"):
- *         h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))
- *         h = np.uint32(h * np.uint32(16777619))             # <<<<<<<<<<<<<<
+    /* "gensim/models/_utils_any2vec.pyx":46
+ *     for b in bytez:
+ *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+ *         h = h * 16777619             # <<<<<<<<<<<<<<
  *     return h
  * 
  */
-    __Pyx_GetModuleGlobalName(__pyx_t_5, __pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 49, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_uint32); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 49, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_8);
-    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 49, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_5);
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 49, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_uint32); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 49, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_7);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = NULL;
-    if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_7))) {
-      __pyx_t_4 = PyMethod_GET_SELF(__pyx_t_7);
-      if (likely(__pyx_t_4)) {
-        PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_7);
-        __Pyx_INCREF(__pyx_t_4);
-        __Pyx_INCREF(function);
-        __Pyx_DECREF_SET(__pyx_t_7, function);
-      }
-    }
-    __pyx_t_6 = (__pyx_t_4) ? __Pyx_PyObject_Call2Args(__pyx_t_7, __pyx_t_4, __pyx_int_16777619) : __Pyx_PyObject_CallOneArg(__pyx_t_7, __pyx_int_16777619);
-    __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
-    if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 49, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_6);
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = PyNumber_Multiply(__pyx_t_5, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 49, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_7);
-    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = NULL;
-    if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_8))) {
-      __pyx_t_6 = PyMethod_GET_SELF(__pyx_t_8);
-      if (likely(__pyx_t_6)) {
-        PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_8);
-        __Pyx_INCREF(__pyx_t_6);
-        __Pyx_INCREF(function);
-        __Pyx_DECREF_SET(__pyx_t_8, function);
-      }
-    }
-    __pyx_t_1 = (__pyx_t_6) ? __Pyx_PyObject_Call2Args(__pyx_t_8, __pyx_t_6, __pyx_t_7) : __Pyx_PyObject_CallOneArg(__pyx_t_8, __pyx_t_7);
-    __Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 49, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_13 = __Pyx_PyInt_As_unsigned_int(__pyx_t_1); if (unlikely((__pyx_t_13 == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 49, __pyx_L1_error)
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_v_h = __pyx_t_13;
-
-    /* "gensim/models/_utils_any2vec.pyx":47
- *     """
- *     cdef unsigned int h = 2166136261
- *     for c in string.encode("utf-8"):             # <<<<<<<<<<<<<<
- *         h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))
- *         h = np.uint32(h * np.uint32(16777619))
- */
+    __pyx_v_h = (__pyx_v_h * 0x1000193);
   }
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":50
- *         h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))
- *         h = np.uint32(h * np.uint32(16777619))
+  /* "gensim/models/_utils_any2vec.pyx":47
+ *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+ *         h = h * 16777619
  *     return h             # <<<<<<<<<<<<<<
  * 
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_2 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 50, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_r = __pyx_t_2;
-  __pyx_t_2 = 0;
+  __pyx_t_6 = __Pyx_PyInt_From_uint32_t(__pyx_v_h); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 47, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_6);
+  __pyx_r = __pyx_t_6;
+  __pyx_t_6 = 0;
   goto __pyx_L0;
 
   /* "gensim/models/_utils_any2vec.pyx":25
  * 
  * 
- * cpdef ft_hash(unicode string):             # <<<<<<<<<<<<<<
- *     """Calculate hash based on `string`.
- *     Reproduce `hash method from Facebook fastText implementation
- */
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_XDECREF(__pyx_t_4);
-  __Pyx_XDECREF(__pyx_t_5);
-  __Pyx_XDECREF(__pyx_t_6);
-  __Pyx_XDECREF(__pyx_t_7);
-  __Pyx_XDECREF(__pyx_t_8);
-  __Pyx_XDECREF(__pyx_t_9);
-  __Pyx_XDECREF(__pyx_t_10);
-  __Pyx_XDECREF(__pyx_t_11);
-  __Pyx_XDECREF(__pyx_t_12);
-  __Pyx_AddTraceback("gensim.models._utils_any2vec.ft_hash", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = 0;
-  __pyx_L0:;
-  __Pyx_XDECREF(__pyx_v_c);
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* Python wrapper */
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
-static char __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash[] = "ft_hash(unicode string)\nCalculate hash based on `string`.\n    Reproduce `hash method from Facebook fastText implementation\n    <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.\n\n    This function is expensive because it encodes each input string as UTF-8,\n    and this can accumulate to a high computational cost if there are many\n    strings.  If possible, convert your strings to bytes and use the faster\n    :py:func:`ft_hash_bytes` function instead.\n\n    Parameters\n    ----------\n    string : unicode\n        The string whose hash needs to be calculated.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash(PyObject *__pyx_self, PyObject *__pyx_v_string) {
-  PyObject *__pyx_r = 0;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("ft_hash (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 25, __pyx_L1_error)
-  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash(__pyx_self, ((PyObject*)__pyx_v_string));
-
-  /* function exit code */
-  goto __pyx_L0;
-  __pyx_L1_error:;
-  __pyx_r = NULL;
-  __pyx_L0:;
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  __Pyx_RefNannySetupContext("ft_hash", 0);
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_r = __pyx_t_1;
-  __pyx_t_1 = 0;
-  goto __pyx_L0;
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("gensim.models._utils_any2vec.ft_hash", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = NULL;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "gensim/models/_utils_any2vec.pyx":53
- * 
- * 
- * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
- *     """Calculate hash based on `bytez`.
- *     Reproduce `hash method from Facebook fastText implementation
- */
-
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_bytes(PyObject *__pyx_self, PyObject *__pyx_v_bytez); /*proto*/
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject *__pyx_v_bytez, CYTHON_UNUSED int __pyx_skip_dispatch) {
-  uint32_t __pyx_v_h;
-  char __pyx_v_b;
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  char *__pyx_t_2;
-  char *__pyx_t_3;
-  char *__pyx_t_4;
-  char *__pyx_t_5;
-  PyObject *__pyx_t_6 = NULL;
-  __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
-
-  /* "gensim/models/_utils_any2vec.pyx":69
- * 
- *     """
- *     cdef uint32_t h = 2166136261             # <<<<<<<<<<<<<<
- *     cdef char b
- * 
- */
-  __pyx_v_h = 0x811C9DC5;
-
-  /* "gensim/models/_utils_any2vec.pyx":72
- *     cdef char b
- * 
- *     for b in bytez:             # <<<<<<<<<<<<<<
- *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
- *         h = h * 16777619
- */
-  if (unlikely(__pyx_v_bytez == Py_None)) {
-    PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(0, 72, __pyx_L1_error)
-  }
-  __Pyx_INCREF(__pyx_v_bytez);
-  __pyx_t_1 = __pyx_v_bytez;
-  __pyx_t_3 = PyBytes_AS_STRING(__pyx_t_1);
-  __pyx_t_4 = (__pyx_t_3 + PyBytes_GET_SIZE(__pyx_t_1));
-  for (__pyx_t_5 = __pyx_t_3; __pyx_t_5 < __pyx_t_4; __pyx_t_5++) {
-    __pyx_t_2 = __pyx_t_5;
-    __pyx_v_b = (__pyx_t_2[0]);
-
-    /* "gensim/models/_utils_any2vec.pyx":73
- * 
- *     for b in bytez:
- *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss             # <<<<<<<<<<<<<<
- *         h = h * 16777619
- *     return h
- */
-    __pyx_v_h = (__pyx_v_h ^ ((uint32_t)((int8_t)__pyx_v_b)));
-
-    /* "gensim/models/_utils_any2vec.pyx":74
- *     for b in bytez:
- *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
- *         h = h * 16777619             # <<<<<<<<<<<<<<
- *     return h
- * 
- */
-    __pyx_v_h = (__pyx_v_h * 0x1000193);
-  }
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-
-  /* "gensim/models/_utils_any2vec.pyx":75
- *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
- *         h = h * 16777619
- *     return h             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_6 = __Pyx_PyInt_From_uint32_t(__pyx_v_h); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 75, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_6);
-  __pyx_r = __pyx_t_6;
-  __pyx_t_6 = 0;
-  goto __pyx_L0;
-
-  /* "gensim/models/_utils_any2vec.pyx":53
- * 
- * 
- * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
- *     """Calculate hash based on `bytez`.
+ * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
+ *     """Calculate hash based on `bytez`.
  *     Reproduce `hash method from Facebook fastText implementation
  */
 
@@ -2350,14 +2018,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_bytes(PyObject *__pyx_self, PyObject *__pyx_v_bytez); /*proto*/
-static char __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_bytes[] = "ft_hash_bytes(bytes bytez)\nCalculate hash based on `bytez`.\n    Reproduce `hash method from Facebook fastText implementation\n    <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.\n\n    Parameters\n    ----------\n    bytez : bytes\n        The string whose hash needs to be calculated, encoded as UTF-8.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_bytes(PyObject *__pyx_self, PyObject *__pyx_v_bytez) {
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes(PyObject *__pyx_self, PyObject *__pyx_v_bytez); /*proto*/
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash_bytes[] = "ft_hash_bytes(bytes bytez)\nCalculate hash based on `bytez`.\n    Reproduce `hash method from Facebook fastText implementation\n    <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.\n\n    Parameters\n    ----------\n    bytez : bytes\n        The string whose hash needs to be calculated, encoded as UTF-8.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes(PyObject *__pyx_self, PyObject *__pyx_v_bytez) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash_bytes (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_bytez), (&PyBytes_Type), 1, "bytez", 1))) __PYX_ERR(0, 53, __pyx_L1_error)
-  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_bytes(__pyx_self, ((PyObject*)__pyx_v_bytez));
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_bytez), (&PyBytes_Type), 1, "bytez", 1))) __PYX_ERR(0, 25, __pyx_L1_error)
+  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_self, ((PyObject*)__pyx_v_bytez));
 
   /* function exit code */
   goto __pyx_L0;
@@ -2368,13 +2036,13 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_bytes(PyObje
   return __pyx_r;
 }
 
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez) {
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_v_bytez, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 53, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_v_bytez, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2391,7 +2059,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_bytes(CYTHON
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":78
+/* "gensim/models/_utils_any2vec.pyx":50
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2399,7 +2067,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_bytes(CYTHON
  * 
  */
 
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObject *__pyx_v_string, CYTHON_UNUSED int __pyx_skip_dispatch) {
   unsigned int __pyx_v_h;
   PyObject *__pyx_v_c = NULL;
@@ -2416,7 +2084,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   long __pyx_t_9;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":95
+  /* "gensim/models/_utils_any2vec.pyx":67
  * 
  *     """
  *     cdef unsigned int h = 2166136261             # <<<<<<<<<<<<<<
@@ -2425,7 +2093,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":96
+  /* "gensim/models/_utils_any2vec.pyx":68
  *     """
  *     cdef unsigned int h = 2166136261
  *     for c in string:             # <<<<<<<<<<<<<<
@@ -2434,29 +2102,29 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   if (unlikely(__pyx_v_string == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(0, 96, __pyx_L1_error)
+    __PYX_ERR(0, 68, __pyx_L1_error)
   }
   __Pyx_INCREF(__pyx_v_string);
   __pyx_t_1 = __pyx_v_string;
-  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 68, __pyx_L1_error)
   for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_3; __pyx_t_7++) {
     __pyx_t_2 = __pyx_t_7;
-    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 96, __pyx_L1_error)
+    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 68, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_XDECREF_SET(__pyx_v_c, __pyx_t_8);
     __pyx_t_8 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":97
+    /* "gensim/models/_utils_any2vec.pyx":69
  *     cdef unsigned int h = 2166136261
  *     for c in string:
  *         h ^= ord(c)             # <<<<<<<<<<<<<<
  *         h *= 16777619
  *     return h
  */
-    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 97, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 69, __pyx_L1_error)
     __pyx_v_h = (__pyx_v_h ^ __pyx_t_9);
 
-    /* "gensim/models/_utils_any2vec.pyx":98
+    /* "gensim/models/_utils_any2vec.pyx":70
  *     for c in string:
  *         h ^= ord(c)
  *         h *= 16777619             # <<<<<<<<<<<<<<
@@ -2467,7 +2135,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":99
+  /* "gensim/models/_utils_any2vec.pyx":71
  *         h ^= ord(c)
  *         h *= 16777619
  *     return h             # <<<<<<<<<<<<<<
@@ -2475,13 +2143,13 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 71, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_8);
   __pyx_r = __pyx_t_8;
   __pyx_t_8 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":78
+  /* "gensim/models/_utils_any2vec.pyx":50
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2503,14 +2171,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
-static char __pyx_doc_6gensim_6models_14_utils_any2vec_4ft_hash_broken[] = "ft_hash_broken(unicode string)\nCalculate hash based on `string`.\n\n    This implementation is broken, see https://github.com/RaRe-Technologies/gensim/issues/2059.\n    It is here only for maintaining backwards compatibility with older models.\n\n    Parameters\n    ----------\n    string : unicode\n        The string whose hash needs to be calculated.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string) {
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_broken[] = "ft_hash_broken(unicode string)\nCalculate hash based on `string`.\n\n    This implementation is broken, see https://github.com/RaRe-Technologies/gensim/issues/2059.\n    It is here only for maintaining backwards compatibility with older models.\n\n    Parameters\n    ----------\n    string : unicode\n        The string whose hash needs to be calculated.\n\n    Returns\n    -------\n    unsigned int\n        The hash of the string.\n\n    ";
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObject *__pyx_self, PyObject *__pyx_v_string) {
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash_broken (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 78, __pyx_L1_error)
-  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_4ft_hash_broken(__pyx_self, ((PyObject*)__pyx_v_string));
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 50, __pyx_L1_error)
+  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(__pyx_self, ((PyObject*)__pyx_v_string));
 
   /* function exit code */
   goto __pyx_L0;
@@ -2521,13 +2189,13 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5ft_hash_broken(PyObj
   return __pyx_r;
 }
 
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string) {
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 78, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 50, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2544,7 +2212,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4ft_hash_broken(CYTHO
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":102
+/* "gensim/models/_utils_any2vec.pyx":74
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2552,7 +2220,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4ft_hash_broken(CYTHO
  * 
  */
 
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n, CYTHON_UNUSED int __pyx_skip_dispatch) {
   PyObject *__pyx_v_extended_word = 0;
   PyObject *__pyx_v_ngrams = NULL;
@@ -2576,14 +2244,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":120
+  /* "gensim/models/_utils_any2vec.pyx":92
  * 
  *     """
  *     cdef unicode extended_word = f'<{word}>'             # <<<<<<<<<<<<<<
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  */
-  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = 0;
   __pyx_t_3 = 127;
@@ -2591,7 +2259,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u_);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_kp_u_);
-  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_3 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) > __pyx_t_3) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) : __pyx_t_3;
   __pyx_t_2 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_4);
@@ -2602,43 +2270,43 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u__2);
   PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_kp_u__2);
-  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_extended_word = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":121
+  /* "gensim/models/_utils_any2vec.pyx":93
  *     """
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []             # <<<<<<<<<<<<<<
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  */
-  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 121, __pyx_L1_error)
+  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 93, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_v_ngrams = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":122
+  /* "gensim/models/_utils_any2vec.pyx":94
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  */
-  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 94, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_5 = __pyx_v_max_n;
-  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 94, __pyx_L1_error)
   if (((__pyx_t_5 < __pyx_t_2) != 0)) {
     __pyx_t_6 = __pyx_t_5;
   } else {
     __pyx_t_6 = __pyx_t_2;
   }
-  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 94, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 94, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_GIVEREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_4);
@@ -2646,16 +2314,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_1);
   __pyx_t_4 = 0;
   __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 94, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
     __pyx_t_7 = __pyx_t_1; __Pyx_INCREF(__pyx_t_7); __pyx_t_6 = 0;
     __pyx_t_8 = NULL;
   } else {
-    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 122, __pyx_L1_error)
+    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 94, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 122, __pyx_L1_error)
+    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 94, __pyx_L1_error)
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   for (;;) {
@@ -2663,17 +2331,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (likely(PyList_CheckExact(__pyx_t_7))) {
         if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 122, __pyx_L1_error)
+        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 94, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 94, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       } else {
         if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 122, __pyx_L1_error)
+        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 94, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 94, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       }
@@ -2683,7 +2351,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         PyObject* exc_type = PyErr_Occurred();
         if (exc_type) {
           if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(0, 122, __pyx_L1_error)
+          else __PYX_ERR(0, 94, __pyx_L1_error)
         }
         break;
       }
@@ -2692,23 +2360,23 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_XDECREF_SET(__pyx_v_ngram_length, __pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":123
+    /* "gensim/models/_utils_any2vec.pyx":95
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams
  */
-    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 123, __pyx_L1_error)
-    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 95, __pyx_L1_error)
+    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_int_0);
     __Pyx_GIVEREF(__pyx_int_0);
@@ -2716,16 +2384,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_GIVEREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
       __pyx_t_4 = __pyx_t_1; __Pyx_INCREF(__pyx_t_4); __pyx_t_2 = 0;
       __pyx_t_9 = NULL;
     } else {
-      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 123, __pyx_L1_error)
+      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 123, __pyx_L1_error)
+      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 95, __pyx_L1_error)
     }
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     for (;;) {
@@ -2733,17 +2401,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         if (likely(PyList_CheckExact(__pyx_t_4))) {
           if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 123, __pyx_L1_error)
+          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 95, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         } else {
           if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 123, __pyx_L1_error)
+          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 95, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         }
@@ -2753,7 +2421,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
           PyObject* exc_type = PyErr_Occurred();
           if (exc_type) {
             if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-            else __PYX_ERR(0, 123, __pyx_L1_error)
+            else __PYX_ERR(0, 95, __pyx_L1_error)
           }
           break;
         }
@@ -2762,7 +2430,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_1);
       __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":124
+      /* "gensim/models/_utils_any2vec.pyx":96
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])             # <<<<<<<<<<<<<<
@@ -2774,26 +2442,26 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (__pyx_t_11) {
         __pyx_t_10 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 124, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 96, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 96, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_11 = (__pyx_t_1 == Py_None);
       if (__pyx_t_11) {
         __pyx_t_12 = PY_SSIZE_T_MAX;
       } else {
-        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 124, __pyx_L1_error)
+        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 96, __pyx_L1_error)
         __pyx_t_12 = __pyx_t_13;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 96, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 96, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":123
+      /* "gensim/models/_utils_any2vec.pyx":95
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
@@ -2803,7 +2471,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     }
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":122
+    /* "gensim/models/_utils_any2vec.pyx":94
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
@@ -2813,7 +2481,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   }
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":125
+  /* "gensim/models/_utils_any2vec.pyx":97
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams             # <<<<<<<<<<<<<<
@@ -2823,7 +2491,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_r = __pyx_v_ngrams;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":102
+  /* "gensim/models/_utils_any2vec.pyx":74
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2849,9 +2517,9 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
 }
 
 /* Python wrapper */
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams[] = "compute_ngrams(word, unsigned int min_n, unsigned int max_n)\nGet the list of all possible ngrams for a given word.\n\n    Parameters\n    ----------\n    word : str\n        The word whose ngrams need to be computed.\n    min_n : unsigned int\n        Minimum character length of the ngrams.\n    max_n : unsigned int\n        Maximum character length of the ngrams.\n\n    Returns\n    -------\n    list of str\n        Sequence of character ngrams.\n\n    ";
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_4compute_ngrams[] = "compute_ngrams(word, unsigned int min_n, unsigned int max_n)\nGet the list of all possible ngrams for a given word.\n\n    Parameters\n    ----------\n    word : str\n        The word whose ngrams need to be computed.\n    min_n : unsigned int\n        Minimum character length of the ngrams.\n    max_n : unsigned int\n        Maximum character length of the ngrams.\n\n    Returns\n    -------\n    list of str\n        Sequence of character ngrams.\n\n    ";
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_word = 0;
   unsigned int __pyx_v_min_n;
   unsigned int __pyx_v_max_n;
@@ -2883,17 +2551,17 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams(PyObj
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 102, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 74, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 102, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 74, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 102, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 74, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -2903,31 +2571,31 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams(PyObj
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
     }
     __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 102, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 102, __pyx_L3_error)
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 74, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 74, __pyx_L3_error)
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 102, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 74, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams(__pyx_self, __pyx_v_word, __pyx_v_min_n, __pyx_v_max_n);
+  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(__pyx_self, __pyx_v_word, __pyx_v_min_n, __pyx_v_max_n);
 
   /* function exit code */
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n) {
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n) {
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 74, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -5581,10 +5249,9 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
 };
 
 static PyMethodDef __pyx_methods[] = {
-  {"ft_hash", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash},
-  {"ft_hash_bytes", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_bytes, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_bytes},
-  {"ft_hash_broken", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_5ft_hash_broken, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_4ft_hash_broken},
-  {"compute_ngrams", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams},
+  {"ft_hash_bytes", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash_bytes},
+  {"ft_hash_broken", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_broken},
+  {"compute_ngrams", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_4compute_ngrams},
   {0, 0, 0, 0}
 };
 
@@ -5645,7 +5312,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_cfunc_to_py, __pyx_k_cfunc_to_py, sizeof(__pyx_k_cfunc_to_py), 0, 0, 1, 1},
   {&__pyx_n_s_cline_in_traceback, __pyx_k_cline_in_traceback, sizeof(__pyx_k_cline_in_traceback), 0, 0, 1, 1},
   {&__pyx_n_s_import, __pyx_k_import, sizeof(__pyx_k_import), 0, 0, 1, 1},
-  {&__pyx_n_s_int8, __pyx_k_int8, sizeof(__pyx_k_int8), 0, 0, 1, 1},
   {&__pyx_n_s_main, __pyx_k_main, sizeof(__pyx_k_main), 0, 0, 1, 1},
   {&__pyx_n_s_max_n, __pyx_k_max_n, sizeof(__pyx_k_max_n), 0, 0, 1, 1},
   {&__pyx_n_s_min_n, __pyx_k_min_n, sizeof(__pyx_k_min_n), 0, 0, 1, 1},
@@ -5660,14 +5326,13 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_six, __pyx_k_six, sizeof(__pyx_k_six), 0, 0, 1, 1},
   {&__pyx_kp_s_stringsource, __pyx_k_stringsource, sizeof(__pyx_k_stringsource), 0, 0, 1, 0},
   {&__pyx_n_s_test, __pyx_k_test, sizeof(__pyx_k_test), 0, 0, 1, 1},
-  {&__pyx_n_s_uint32, __pyx_k_uint32, sizeof(__pyx_k_uint32), 0, 0, 1, 1},
   {&__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_k_unknown_dtype_code_in_numpy_pxd, sizeof(__pyx_k_unknown_dtype_code_in_numpy_pxd), 0, 1, 0, 0},
   {&__pyx_n_s_word, __pyx_k_word, sizeof(__pyx_k_word), 0, 0, 1, 1},
   {&__pyx_n_s_wrap, __pyx_k_wrap, sizeof(__pyx_k_wrap), 0, 0, 1, 1},
   {0, 0, 0, 0, 0, 0, 0}
 };
 static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 94, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 272, __pyx_L1_error)
   __pyx_builtin_RuntimeError = __Pyx_GetBuiltinName(__pyx_n_s_RuntimeError); if (!__pyx_builtin_RuntimeError) __PYX_ERR(1, 856, __pyx_L1_error)
   __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(1, 1038, __pyx_L1_error)
@@ -5779,7 +5444,6 @@ static CYTHON_SMALL_CODE int __Pyx_InitGlobals(void) {
   if (__Pyx_InitStrings(__pyx_string_tab) < 0) __PYX_ERR(0, 1, __pyx_L1_error);
   __pyx_int_0 = PyInt_FromLong(0); if (unlikely(!__pyx_int_0)) __PYX_ERR(0, 1, __pyx_L1_error)
   __pyx_int_1 = PyInt_FromLong(1); if (unlikely(!__pyx_int_1)) __PYX_ERR(0, 1, __pyx_L1_error)
-  __pyx_int_16777619 = PyInt_FromLong(16777619L); if (unlikely(!__pyx_int_16777619)) __PYX_ERR(0, 1, __pyx_L1_error)
   return 0;
   __pyx_L1_error:;
   return -1;
@@ -6294,183 +5958,105 @@ static long __Pyx__PyObject_Ord(PyObject* c) {
     return (long)(Py_UCS4)-1;
 }
 
-/* GetModuleGlobalName */
-#if CYTHON_USE_DICT_VERSIONS
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
-#else
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
-#endif
+/* ArgTypeTest */
+static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
 {
-    PyObject *result;
-#if !CYTHON_AVOID_BORROWED_REFS
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
-    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    } else if (unlikely(PyErr_Occurred())) {
-        return NULL;
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
     }
-#else
-    result = PyDict_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
+    else if (exact) {
+        #if PY_MAJOR_VERSION == 2
+        if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1;
+        #endif
+    }
+    else {
+        if (likely(__Pyx_TypeCheck(obj, type))) return 1;
     }
+    PyErr_Format(PyExc_TypeError,
+        "Argument '%.200s' has incorrect type (expected %.200s, got %.200s)",
+        name, type->tp_name, Py_TYPE(obj)->tp_name);
+    return 0;
+}
+
+/* unicode_iter */
+static CYTHON_INLINE int __Pyx_init_unicode_iteration(
+    PyObject* ustring, Py_ssize_t *length, void** data, int *kind) {
+#if CYTHON_PEP393_ENABLED
+    if (unlikely(__Pyx_PyUnicode_READY(ustring) < 0)) return -1;
+    *kind   = PyUnicode_KIND(ustring);
+    *length = PyUnicode_GET_LENGTH(ustring);
+    *data   = PyUnicode_DATA(ustring);
+#else
+    *kind   = 0;
+    *length = PyUnicode_GET_SIZE(ustring);
+    *data   = (void*)PyUnicode_AS_UNICODE(ustring);
 #endif
+    return 0;
+}
+
+/* JoinPyUnicode */
+static PyObject* __Pyx_PyUnicode_Join(PyObject* value_tuple, Py_ssize_t value_count, Py_ssize_t result_ulength,
+                                      CYTHON_UNUSED Py_UCS4 max_char) {
+#if CYTHON_USE_UNICODE_INTERNALS && CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    PyObject *result_uval;
+    int result_ukind;
+    Py_ssize_t i, char_pos;
+    void *result_udata;
+#if CYTHON_PEP393_ENABLED
+    result_uval = PyUnicode_New(result_ulength, max_char);
+    if (unlikely(!result_uval)) return NULL;
+    result_ukind = (max_char <= 255) ? PyUnicode_1BYTE_KIND : (max_char <= 65535) ? PyUnicode_2BYTE_KIND : PyUnicode_4BYTE_KIND;
+    result_udata = PyUnicode_DATA(result_uval);
 #else
-    result = PyObject_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
+    result_uval = PyUnicode_FromUnicode(NULL, result_ulength);
+    if (unlikely(!result_uval)) return NULL;
+    result_ukind = sizeof(Py_UNICODE);
+    result_udata = PyUnicode_AS_UNICODE(result_uval);
+#endif
+    char_pos = 0;
+    for (i=0; i < value_count; i++) {
+        int ukind;
+        Py_ssize_t ulength;
+        void *udata;
+        PyObject *uval = PyTuple_GET_ITEM(value_tuple, i);
+        if (unlikely(__Pyx_PyUnicode_READY(uval)))
+            goto bad;
+        ulength = __Pyx_PyUnicode_GET_LENGTH(uval);
+        if (unlikely(!ulength))
+            continue;
+        if (unlikely(char_pos + ulength < 0))
+            goto overflow;
+        ukind = __Pyx_PyUnicode_KIND(uval);
+        udata = __Pyx_PyUnicode_DATA(uval);
+        if (!CYTHON_PEP393_ENABLED || ukind == result_ukind) {
+            memcpy((char *)result_udata + char_pos * result_ukind, udata, (size_t) (ulength * result_ukind));
+        } else {
+            #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030300F0 || defined(_PyUnicode_FastCopyCharacters)
+            _PyUnicode_FastCopyCharacters(result_uval, char_pos, uval, 0, ulength);
+            #else
+            Py_ssize_t j;
+            for (j=0; j < ulength; j++) {
+                Py_UCS4 uchar = __Pyx_PyUnicode_READ(ukind, udata, j);
+                __Pyx_PyUnicode_WRITE(result_ukind, result_udata, char_pos+j, uchar);
+            }
+            #endif
+        }
+        char_pos += ulength;
     }
-    PyErr_Clear();
+    return result_uval;
+overflow:
+    PyErr_SetString(PyExc_OverflowError, "join() result is too long for a Python string");
+bad:
+    Py_DECREF(result_uval);
+    return NULL;
+#else
+    result_ulength++;
+    value_count++;
+    return PyUnicode_Join(__pyx_empty_unicode, value_tuple);
 #endif
-    return __Pyx_GetBuiltinName(name);
 }
 
-/* PyCFunctionFastCall */
-#if CYTHON_FAST_PYCCALL
-static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
-    PyCFunctionObject *func = (PyCFunctionObject*)func_obj;
-    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
-    PyObject *self = PyCFunction_GET_SELF(func);
-    int flags = PyCFunction_GET_FLAGS(func);
-    assert(PyCFunction_Check(func));
-    assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS)));
-    assert(nargs >= 0);
-    assert(nargs == 0 || args != NULL);
-    /* _PyCFunction_FastCallDict() must not be called with an exception set,
-       because it may clear it (directly or indirectly) and so the
-       caller loses its exception */
-    assert(!PyErr_Occurred());
-    if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) {
-        return (*((__Pyx_PyCFunctionFastWithKeywords)(void*)meth)) (self, args, nargs, NULL);
-    } else {
-        return (*((__Pyx_PyCFunctionFast)(void*)meth)) (self, args, nargs);
-    }
-}
-#endif
-
-/* PyFunctionFastCall */
-#if CYTHON_FAST_PYCALL
-static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
-                                               PyObject *globals) {
-    PyFrameObject *f;
-    PyThreadState *tstate = __Pyx_PyThreadState_Current;
-    PyObject **fastlocals;
-    Py_ssize_t i;
-    PyObject *result;
-    assert(globals != NULL);
-    /* XXX Perhaps we should create a specialized
-       PyFrame_New() that doesn't take locals, but does
-       take builtins without sanity checking them.
-       */
-    assert(tstate != NULL);
-    f = PyFrame_New(tstate, co, globals, NULL);
-    if (f == NULL) {
-        return NULL;
-    }
-    fastlocals = __Pyx_PyFrame_GetLocalsplus(f);
-    for (i = 0; i < na; i++) {
-        Py_INCREF(*args);
-        fastlocals[i] = *args++;
-    }
-    result = PyEval_EvalFrameEx(f,0);
-    ++tstate->recursion_depth;
-    Py_DECREF(f);
-    --tstate->recursion_depth;
-    return result;
-}
-#if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
-    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
-    PyObject *globals = PyFunction_GET_GLOBALS(func);
-    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
-    PyObject *closure;
-#if PY_MAJOR_VERSION >= 3
-    PyObject *kwdefs;
-#endif
-    PyObject *kwtuple, **k;
-    PyObject **d;
-    Py_ssize_t nd;
-    Py_ssize_t nk;
-    PyObject *result;
-    assert(kwargs == NULL || PyDict_Check(kwargs));
-    nk = kwargs ? PyDict_Size(kwargs) : 0;
-    if (Py_EnterRecursiveCall((char*)" while calling a Python object")) {
-        return NULL;
-    }
-    if (
-#if PY_MAJOR_VERSION >= 3
-            co->co_kwonlyargcount == 0 &&
-#endif
-            likely(kwargs == NULL || nk == 0) &&
-            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
-        if (argdefs == NULL && co->co_argcount == nargs) {
-            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
-            goto done;
-        }
-        else if (nargs == 0 && argdefs != NULL
-                 && co->co_argcount == Py_SIZE(argdefs)) {
-            /* function called with no arguments, but all parameters have
-               a default value: use default values as arguments .*/
-            args = &PyTuple_GET_ITEM(argdefs, 0);
-            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
-            goto done;
-        }
-    }
-    if (kwargs != NULL) {
-        Py_ssize_t pos, i;
-        kwtuple = PyTuple_New(2 * nk);
-        if (kwtuple == NULL) {
-            result = NULL;
-            goto done;
-        }
-        k = &PyTuple_GET_ITEM(kwtuple, 0);
-        pos = i = 0;
-        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
-            Py_INCREF(k[i]);
-            Py_INCREF(k[i+1]);
-            i += 2;
-        }
-        nk = i / 2;
-    }
-    else {
-        kwtuple = NULL;
-        k = NULL;
-    }
-    closure = PyFunction_GET_CLOSURE(func);
-#if PY_MAJOR_VERSION >= 3
-    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
-#endif
-    if (argdefs != NULL) {
-        d = &PyTuple_GET_ITEM(argdefs, 0);
-        nd = Py_SIZE(argdefs);
-    }
-    else {
-        d = NULL;
-        nd = 0;
-    }
-#if PY_MAJOR_VERSION >= 3
-    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
-                               args, nargs,
-                               k, (int)nk,
-                               d, (int)nd, kwdefs, closure);
-#else
-    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
-                               args, nargs,
-                               k, (int)nk,
-                               d, (int)nd, closure);
-#endif
-    Py_XDECREF(kwtuple);
-done:
-    Py_LeaveRecursiveCall();
-    return result;
-}
-#endif
-#endif
-
 /* PyObjectCall */
 #if CYTHON_COMPILING_IN_CPYTHON
 static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
@@ -6491,253 +6077,65 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg
 }
 #endif
 
-/* PyObjectCall2Args */
-static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2) {
-    PyObject *args, *result = NULL;
-    #if CYTHON_FAST_PYCALL
-    if (PyFunction_Check(function)) {
-        PyObject *args[2] = {arg1, arg2};
-        return __Pyx_PyFunction_FastCall(function, args, 2);
-    }
-    #endif
-    #if CYTHON_FAST_PYCCALL
-    if (__Pyx_PyFastCFunction_Check(function)) {
-        PyObject *args[2] = {arg1, arg2};
-        return __Pyx_PyCFunction_FastCall(function, args, 2);
+/* PyIntBinop */
+#if !CYTHON_COMPILING_IN_PYPY
+static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, CYTHON_UNUSED long intval, CYTHON_UNUSED int inplace) {
+    #if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_CheckExact(op1))) {
+        const long b = intval;
+        long x;
+        long a = PyInt_AS_LONG(op1);
+            x = (long)((unsigned long)a + b);
+            if (likely((x^a) >= 0 || (x^b) >= 0))
+                return PyInt_FromLong(x);
+            return PyLong_Type.tp_as_number->nb_add(op1, op2);
     }
     #endif
-    args = PyTuple_New(2);
-    if (unlikely(!args)) goto done;
-    Py_INCREF(arg1);
-    PyTuple_SET_ITEM(args, 0, arg1);
-    Py_INCREF(arg2);
-    PyTuple_SET_ITEM(args, 1, arg2);
-    Py_INCREF(function);
-    result = __Pyx_PyObject_Call(function, args, NULL);
-    Py_DECREF(args);
-    Py_DECREF(function);
-done:
-    return result;
-}
-
-/* PyObjectCallMethO */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
-    PyObject *self, *result;
-    PyCFunction cfunc;
-    cfunc = PyCFunction_GET_FUNCTION(func);
-    self = PyCFunction_GET_SELF(func);
-    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
-        return NULL;
-    result = cfunc(self, arg);
-    Py_LeaveRecursiveCall();
-    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
-        PyErr_SetString(
-            PyExc_SystemError,
-            "NULL result without error in PyObject_Call");
-    }
-    return result;
-}
+    #if CYTHON_USE_PYLONG_INTERNALS
+    if (likely(PyLong_CheckExact(op1))) {
+        const long b = intval;
+        long a, x;
+#ifdef HAVE_LONG_LONG
+        const PY_LONG_LONG llb = intval;
+        PY_LONG_LONG lla, llx;
 #endif
-
-/* PyObjectCallOneArg */
-#if CYTHON_COMPILING_IN_CPYTHON
-static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-    PyObject *result;
-    PyObject *args = PyTuple_New(1);
-    if (unlikely(!args)) return NULL;
-    Py_INCREF(arg);
-    PyTuple_SET_ITEM(args, 0, arg);
-    result = __Pyx_PyObject_Call(func, args, NULL);
-    Py_DECREF(args);
-    return result;
-}
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-#if CYTHON_FAST_PYCALL
-    if (PyFunction_Check(func)) {
-        return __Pyx_PyFunction_FastCall(func, &arg, 1);
-    }
+        const digit* digits = ((PyLongObject*)op1)->ob_digit;
+        const Py_ssize_t size = Py_SIZE(op1);
+        if (likely(__Pyx_sst_abs(size) <= 1)) {
+            a = likely(size) ? digits[0] : 0;
+            if (size == -1) a = -a;
+        } else {
+            switch (size) {
+                case -2:
+                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                        a = -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
+                        break;
+#ifdef HAVE_LONG_LONG
+                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
+                        lla = -(PY_LONG_LONG) (((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
+                        goto long_long;
 #endif
-    if (likely(PyCFunction_Check(func))) {
-        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
-            return __Pyx_PyObject_CallMethO(func, arg);
-#if CYTHON_FAST_PYCCALL
-        } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) {
-            return __Pyx_PyCFunction_FastCall(func, &arg, 1);
+                    }
+                    CYTHON_FALLTHROUGH;
+                case 2:
+                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                        a = (long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
+                        break;
+#ifdef HAVE_LONG_LONG
+                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
+                        lla = (PY_LONG_LONG) (((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
+                        goto long_long;
 #endif
-        }
-    }
-    return __Pyx__PyObject_CallOneArg(func, arg);
-}
-#else
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-    PyObject *result;
-    PyObject *args = PyTuple_Pack(1, arg);
-    if (unlikely(!args)) return NULL;
-    result = __Pyx_PyObject_Call(func, args, NULL);
-    Py_DECREF(args);
-    return result;
-}
-#endif
-
-/* ArgTypeTest */
-static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
-{
-    if (unlikely(!type)) {
-        PyErr_SetString(PyExc_SystemError, "Missing type object");
-        return 0;
-    }
-    else if (exact) {
-        #if PY_MAJOR_VERSION == 2
-        if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1;
-        #endif
-    }
-    else {
-        if (likely(__Pyx_TypeCheck(obj, type))) return 1;
-    }
-    PyErr_Format(PyExc_TypeError,
-        "Argument '%.200s' has incorrect type (expected %.200s, got %.200s)",
-        name, type->tp_name, Py_TYPE(obj)->tp_name);
-    return 0;
-}
-
-/* unicode_iter */
-static CYTHON_INLINE int __Pyx_init_unicode_iteration(
-    PyObject* ustring, Py_ssize_t *length, void** data, int *kind) {
-#if CYTHON_PEP393_ENABLED
-    if (unlikely(__Pyx_PyUnicode_READY(ustring) < 0)) return -1;
-    *kind   = PyUnicode_KIND(ustring);
-    *length = PyUnicode_GET_LENGTH(ustring);
-    *data   = PyUnicode_DATA(ustring);
-#else
-    *kind   = 0;
-    *length = PyUnicode_GET_SIZE(ustring);
-    *data   = (void*)PyUnicode_AS_UNICODE(ustring);
-#endif
-    return 0;
-}
-
-/* JoinPyUnicode */
-static PyObject* __Pyx_PyUnicode_Join(PyObject* value_tuple, Py_ssize_t value_count, Py_ssize_t result_ulength,
-                                      CYTHON_UNUSED Py_UCS4 max_char) {
-#if CYTHON_USE_UNICODE_INTERNALS && CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-    PyObject *result_uval;
-    int result_ukind;
-    Py_ssize_t i, char_pos;
-    void *result_udata;
-#if CYTHON_PEP393_ENABLED
-    result_uval = PyUnicode_New(result_ulength, max_char);
-    if (unlikely(!result_uval)) return NULL;
-    result_ukind = (max_char <= 255) ? PyUnicode_1BYTE_KIND : (max_char <= 65535) ? PyUnicode_2BYTE_KIND : PyUnicode_4BYTE_KIND;
-    result_udata = PyUnicode_DATA(result_uval);
-#else
-    result_uval = PyUnicode_FromUnicode(NULL, result_ulength);
-    if (unlikely(!result_uval)) return NULL;
-    result_ukind = sizeof(Py_UNICODE);
-    result_udata = PyUnicode_AS_UNICODE(result_uval);
-#endif
-    char_pos = 0;
-    for (i=0; i < value_count; i++) {
-        int ukind;
-        Py_ssize_t ulength;
-        void *udata;
-        PyObject *uval = PyTuple_GET_ITEM(value_tuple, i);
-        if (unlikely(__Pyx_PyUnicode_READY(uval)))
-            goto bad;
-        ulength = __Pyx_PyUnicode_GET_LENGTH(uval);
-        if (unlikely(!ulength))
-            continue;
-        if (unlikely(char_pos + ulength < 0))
-            goto overflow;
-        ukind = __Pyx_PyUnicode_KIND(uval);
-        udata = __Pyx_PyUnicode_DATA(uval);
-        if (!CYTHON_PEP393_ENABLED || ukind == result_ukind) {
-            memcpy((char *)result_udata + char_pos * result_ukind, udata, (size_t) (ulength * result_ukind));
-        } else {
-            #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030300F0 || defined(_PyUnicode_FastCopyCharacters)
-            _PyUnicode_FastCopyCharacters(result_uval, char_pos, uval, 0, ulength);
-            #else
-            Py_ssize_t j;
-            for (j=0; j < ulength; j++) {
-                Py_UCS4 uchar = __Pyx_PyUnicode_READ(ukind, udata, j);
-                __Pyx_PyUnicode_WRITE(result_ukind, result_udata, char_pos+j, uchar);
-            }
-            #endif
-        }
-        char_pos += ulength;
-    }
-    return result_uval;
-overflow:
-    PyErr_SetString(PyExc_OverflowError, "join() result is too long for a Python string");
-bad:
-    Py_DECREF(result_uval);
-    return NULL;
-#else
-    result_ulength++;
-    value_count++;
-    return PyUnicode_Join(__pyx_empty_unicode, value_tuple);
-#endif
-}
-
-/* PyIntBinop */
-#if !CYTHON_COMPILING_IN_PYPY
-static PyObject* __Pyx_PyInt_AddObjC(PyObject *op1, PyObject *op2, CYTHON_UNUSED long intval, CYTHON_UNUSED int inplace) {
-    #if PY_MAJOR_VERSION < 3
-    if (likely(PyInt_CheckExact(op1))) {
-        const long b = intval;
-        long x;
-        long a = PyInt_AS_LONG(op1);
-            x = (long)((unsigned long)a + b);
-            if (likely((x^a) >= 0 || (x^b) >= 0))
-                return PyInt_FromLong(x);
-            return PyLong_Type.tp_as_number->nb_add(op1, op2);
-    }
-    #endif
-    #if CYTHON_USE_PYLONG_INTERNALS
-    if (likely(PyLong_CheckExact(op1))) {
-        const long b = intval;
-        long a, x;
-#ifdef HAVE_LONG_LONG
-        const PY_LONG_LONG llb = intval;
-        PY_LONG_LONG lla, llx;
-#endif
-        const digit* digits = ((PyLongObject*)op1)->ob_digit;
-        const Py_ssize_t size = Py_SIZE(op1);
-        if (likely(__Pyx_sst_abs(size) <= 1)) {
-            a = likely(size) ? digits[0] : 0;
-            if (size == -1) a = -a;
-        } else {
-            switch (size) {
-                case -2:
-                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                        a = -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
-                        break;
-#ifdef HAVE_LONG_LONG
-                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
-                        lla = -(PY_LONG_LONG) (((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
-                        goto long_long;
-#endif
-                    }
-                    CYTHON_FALLTHROUGH;
-                case 2:
-                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                        a = (long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
-                        break;
-#ifdef HAVE_LONG_LONG
-                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
-                        lla = (PY_LONG_LONG) (((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
-                        goto long_long;
-#endif
-                    }
-                    CYTHON_FALLTHROUGH;
-                case -3:
-                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                        a = -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
-                        break;
-#ifdef HAVE_LONG_LONG
-                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
-                        lla = -(PY_LONG_LONG) (((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
-                        goto long_long;
+                    }
+                    CYTHON_FALLTHROUGH;
+                case -3:
+                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                        a = -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
+                        break;
+#ifdef HAVE_LONG_LONG
+                    } else if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
+                        lla = -(PY_LONG_LONG) (((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
+                        goto long_long;
 #endif
                     }
                     CYTHON_FALLTHROUGH;
@@ -6993,162 +6391,364 @@ static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject
 }
 #endif
 
-/* RaiseException */
-#if PY_MAJOR_VERSION < 3
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
-                        CYTHON_UNUSED PyObject *cause) {
-    __Pyx_PyThreadState_declare
-    Py_XINCREF(type);
-    if (!value || value == Py_None)
-        value = NULL;
-    else
-        Py_INCREF(value);
-    if (!tb || tb == Py_None)
-        tb = NULL;
-    else {
-        Py_INCREF(tb);
-        if (!PyTraceBack_Check(tb)) {
-            PyErr_SetString(PyExc_TypeError,
-                "raise: arg 3 must be a traceback or None");
-            goto raise_error;
-        }
+/* RaiseException */
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
+                        CYTHON_UNUSED PyObject *cause) {
+    __Pyx_PyThreadState_declare
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                int is_subclass = PyObject_IsSubclass(instance_class, type);
+                if (!is_subclass) {
+                    instance_class = NULL;
+                } else if (unlikely(is_subclass == -1)) {
+                    goto bad;
+                } else {
+                    type = instance_class;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+    if (cause) {
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
+    if (tb) {
+#if CYTHON_COMPILING_IN_PYPY
+        PyObject *tmp_type, *tmp_value, *tmp_tb;
+        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
+        Py_INCREF(tb);
+        PyErr_Restore(tmp_type, tmp_value, tb);
+        Py_XDECREF(tmp_tb);
+#else
+        PyThreadState *tstate = __Pyx_PyThreadState_Current;
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+#endif
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+/* PyCFunctionFastCall */
+#if CYTHON_FAST_PYCCALL
+static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
+    PyCFunctionObject *func = (PyCFunctionObject*)func_obj;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    int flags = PyCFunction_GET_FLAGS(func);
+    assert(PyCFunction_Check(func));
+    assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS)));
+    assert(nargs >= 0);
+    assert(nargs == 0 || args != NULL);
+    /* _PyCFunction_FastCallDict() must not be called with an exception set,
+       because it may clear it (directly or indirectly) and so the
+       caller loses its exception */
+    assert(!PyErr_Occurred());
+    if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) {
+        return (*((__Pyx_PyCFunctionFastWithKeywords)(void*)meth)) (self, args, nargs, NULL);
+    } else {
+        return (*((__Pyx_PyCFunctionFast)(void*)meth)) (self, args, nargs);
+    }
+}
+#endif
+
+/* PyFunctionFastCall */
+#if CYTHON_FAST_PYCALL
+static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
+                                               PyObject *globals) {
+    PyFrameObject *f;
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    PyObject **fastlocals;
+    Py_ssize_t i;
+    PyObject *result;
+    assert(globals != NULL);
+    /* XXX Perhaps we should create a specialized
+       PyFrame_New() that doesn't take locals, but does
+       take builtins without sanity checking them.
+       */
+    assert(tstate != NULL);
+    f = PyFrame_New(tstate, co, globals, NULL);
+    if (f == NULL) {
+        return NULL;
+    }
+    fastlocals = __Pyx_PyFrame_GetLocalsplus(f);
+    for (i = 0; i < na; i++) {
+        Py_INCREF(*args);
+        fastlocals[i] = *args++;
+    }
+    result = PyEval_EvalFrameEx(f,0);
+    ++tstate->recursion_depth;
+    Py_DECREF(f);
+    --tstate->recursion_depth;
+    return result;
+}
+#if 1 || PY_VERSION_HEX < 0x030600B1
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
+    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
+    PyObject *globals = PyFunction_GET_GLOBALS(func);
+    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
+    PyObject *closure;
+#if PY_MAJOR_VERSION >= 3
+    PyObject *kwdefs;
+#endif
+    PyObject *kwtuple, **k;
+    PyObject **d;
+    Py_ssize_t nd;
+    Py_ssize_t nk;
+    PyObject *result;
+    assert(kwargs == NULL || PyDict_Check(kwargs));
+    nk = kwargs ? PyDict_Size(kwargs) : 0;
+    if (Py_EnterRecursiveCall((char*)" while calling a Python object")) {
+        return NULL;
+    }
+    if (
+#if PY_MAJOR_VERSION >= 3
+            co->co_kwonlyargcount == 0 &&
+#endif
+            likely(kwargs == NULL || nk == 0) &&
+            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
+        if (argdefs == NULL && co->co_argcount == nargs) {
+            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
+            goto done;
+        }
+        else if (nargs == 0 && argdefs != NULL
+                 && co->co_argcount == Py_SIZE(argdefs)) {
+            /* function called with no arguments, but all parameters have
+               a default value: use default values as arguments .*/
+            args = &PyTuple_GET_ITEM(argdefs, 0);
+            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
+            goto done;
+        }
+    }
+    if (kwargs != NULL) {
+        Py_ssize_t pos, i;
+        kwtuple = PyTuple_New(2 * nk);
+        if (kwtuple == NULL) {
+            result = NULL;
+            goto done;
+        }
+        k = &PyTuple_GET_ITEM(kwtuple, 0);
+        pos = i = 0;
+        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
+            Py_INCREF(k[i]);
+            Py_INCREF(k[i+1]);
+            i += 2;
+        }
+        nk = i / 2;
+    }
+    else {
+        kwtuple = NULL;
+        k = NULL;
+    }
+    closure = PyFunction_GET_CLOSURE(func);
+#if PY_MAJOR_VERSION >= 3
+    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
+#endif
+    if (argdefs != NULL) {
+        d = &PyTuple_GET_ITEM(argdefs, 0);
+        nd = Py_SIZE(argdefs);
+    }
+    else {
+        d = NULL;
+        nd = 0;
+    }
+#if PY_MAJOR_VERSION >= 3
+    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
+                               args, nargs,
+                               k, (int)nk,
+                               d, (int)nd, kwdefs, closure);
+#else
+    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
+                               args, nargs,
+                               k, (int)nk,
+                               d, (int)nd, closure);
+#endif
+    Py_XDECREF(kwtuple);
+done:
+    Py_LeaveRecursiveCall();
+    return result;
+}
+#endif
+#endif
+
+/* PyObjectCallMethO */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+/* PyObjectCallOneArg */
+#if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(func)) {
+        return __Pyx_PyFunction_FastCall(func, &arg, 1);
     }
-    if (PyType_Check(type)) {
-#if CYTHON_COMPILING_IN_PYPY
-        if (!value) {
-            Py_INCREF(Py_None);
-            value = Py_None;
-        }
 #endif
-        PyErr_NormalizeException(&type, &value, &tb);
-    } else {
-        if (value) {
-            PyErr_SetString(PyExc_TypeError,
-                "instance exception may not have a separate value");
-            goto raise_error;
-        }
-        value = type;
-        type = (PyObject*) Py_TYPE(type);
-        Py_INCREF(type);
-        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
-            PyErr_SetString(PyExc_TypeError,
-                "raise: exception class must be a subclass of BaseException");
-            goto raise_error;
+    if (likely(PyCFunction_Check(func))) {
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+#if CYTHON_FAST_PYCCALL
+        } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) {
+            return __Pyx_PyCFunction_FastCall(func, &arg, 1);
+#endif
         }
     }
-    __Pyx_PyThreadState_assign
-    __Pyx_ErrRestore(type, value, tb);
-    return;
-raise_error:
-    Py_XDECREF(value);
-    Py_XDECREF(type);
-    Py_XDECREF(tb);
-    return;
+    return __Pyx__PyObject_CallOneArg(func, arg);
 }
 #else
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
-    PyObject* owned_instance = NULL;
-    if (tb == Py_None) {
-        tb = 0;
-    } else if (tb && !PyTraceBack_Check(tb)) {
-        PyErr_SetString(PyExc_TypeError,
-            "raise: arg 3 must be a traceback or None");
-        goto bad;
-    }
-    if (value == Py_None)
-        value = 0;
-    if (PyExceptionInstance_Check(type)) {
-        if (value) {
-            PyErr_SetString(PyExc_TypeError,
-                "instance exception may not have a separate value");
-            goto bad;
-        }
-        value = type;
-        type = (PyObject*) Py_TYPE(value);
-    } else if (PyExceptionClass_Check(type)) {
-        PyObject *instance_class = NULL;
-        if (value && PyExceptionInstance_Check(value)) {
-            instance_class = (PyObject*) Py_TYPE(value);
-            if (instance_class != type) {
-                int is_subclass = PyObject_IsSubclass(instance_class, type);
-                if (!is_subclass) {
-                    instance_class = NULL;
-                } else if (unlikely(is_subclass == -1)) {
-                    goto bad;
-                } else {
-                    type = instance_class;
-                }
-            }
-        }
-        if (!instance_class) {
-            PyObject *args;
-            if (!value)
-                args = PyTuple_New(0);
-            else if (PyTuple_Check(value)) {
-                Py_INCREF(value);
-                args = value;
-            } else
-                args = PyTuple_Pack(1, value);
-            if (!args)
-                goto bad;
-            owned_instance = PyObject_Call(type, args, NULL);
-            Py_DECREF(args);
-            if (!owned_instance)
-                goto bad;
-            value = owned_instance;
-            if (!PyExceptionInstance_Check(value)) {
-                PyErr_Format(PyExc_TypeError,
-                             "calling %R should have returned an instance of "
-                             "BaseException, not %R",
-                             type, Py_TYPE(value));
-                goto bad;
-            }
-        }
-    } else {
-        PyErr_SetString(PyExc_TypeError,
-            "raise: exception class must be a subclass of BaseException");
-        goto bad;
-    }
-    if (cause) {
-        PyObject *fixed_cause;
-        if (cause == Py_None) {
-            fixed_cause = NULL;
-        } else if (PyExceptionClass_Check(cause)) {
-            fixed_cause = PyObject_CallObject(cause, NULL);
-            if (fixed_cause == NULL)
-                goto bad;
-        } else if (PyExceptionInstance_Check(cause)) {
-            fixed_cause = cause;
-            Py_INCREF(fixed_cause);
-        } else {
-            PyErr_SetString(PyExc_TypeError,
-                            "exception causes must derive from "
-                            "BaseException");
-            goto bad;
-        }
-        PyException_SetCause(value, fixed_cause);
-    }
-    PyErr_SetObject(type, value);
-    if (tb) {
-#if CYTHON_COMPILING_IN_PYPY
-        PyObject *tmp_type, *tmp_value, *tmp_tb;
-        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
-        Py_INCREF(tb);
-        PyErr_Restore(tmp_type, tmp_value, tb);
-        Py_XDECREF(tmp_tb);
-#else
-        PyThreadState *tstate = __Pyx_PyThreadState_Current;
-        PyObject* tmp_tb = tstate->curexc_traceback;
-        if (tb != tmp_tb) {
-            Py_INCREF(tb);
-            tstate->curexc_traceback = tb;
-            Py_XDECREF(tmp_tb);
-        }
-#endif
-    }
-bad:
-    Py_XDECREF(owned_instance);
-    return;
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_Pack(1, arg);
+    if (unlikely(!args)) return NULL;
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
 }
 #endif
 
@@ -8177,6 +7777,41 @@ static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
     return value;
 }
 
+/* GetModuleGlobalName */
+#if CYTHON_USE_DICT_VERSIONS
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
+#else
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
+#endif
+{
+    PyObject *result;
+#if !CYTHON_AVOID_BORROWED_REFS
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
+    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    } else if (unlikely(PyErr_Occurred())) {
+        return NULL;
+    }
+#else
+    result = PyDict_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+#endif
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+    PyErr_Clear();
+#endif
+    return __Pyx_GetBuiltinName(name);
+}
+
 /* CLineInTraceback */
 #ifndef CYTHON_CLINE_IN_TRACEBACK
 static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
@@ -8438,24 +8073,24 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
 }
 
 /* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value) {
-    const unsigned int neg_one = (unsigned int) ((unsigned int) 0 - (unsigned int) 1), const_zero = (unsigned int) 0;
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value) {
+    const uint32_t neg_one = (uint32_t) ((uint32_t) 0 - (uint32_t) 1), const_zero = (uint32_t) 0;
     const int is_unsigned = neg_one > const_zero;
     if (is_unsigned) {
-        if (sizeof(unsigned int) < sizeof(long)) {
+        if (sizeof(uint32_t) < sizeof(long)) {
             return PyInt_FromLong((long) value);
-        } else if (sizeof(unsigned int) <= sizeof(unsigned long)) {
+        } else if (sizeof(uint32_t) <= sizeof(unsigned long)) {
             return PyLong_FromUnsignedLong((unsigned long) value);
 #ifdef HAVE_LONG_LONG
-        } else if (sizeof(unsigned int) <= sizeof(unsigned PY_LONG_LONG)) {
+        } else if (sizeof(uint32_t) <= sizeof(unsigned PY_LONG_LONG)) {
             return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
 #endif
         }
     } else {
-        if (sizeof(unsigned int) <= sizeof(long)) {
+        if (sizeof(uint32_t) <= sizeof(long)) {
             return PyInt_FromLong((long) value);
 #ifdef HAVE_LONG_LONG
-        } else if (sizeof(unsigned int) <= sizeof(PY_LONG_LONG)) {
+        } else if (sizeof(uint32_t) <= sizeof(PY_LONG_LONG)) {
             return PyLong_FromLongLong((PY_LONG_LONG) value);
 #endif
         }
@@ -8463,30 +8098,30 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value)
     {
         int one = 1; int little = (int)*(unsigned char *)&one;
         unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(unsigned int),
+        return _PyLong_FromByteArray(bytes, sizeof(uint32_t),
                                      little, !is_unsigned);
     }
 }
 
 /* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value) {
-    const uint32_t neg_one = (uint32_t) ((uint32_t) 0 - (uint32_t) 1), const_zero = (uint32_t) 0;
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value) {
+    const unsigned int neg_one = (unsigned int) ((unsigned int) 0 - (unsigned int) 1), const_zero = (unsigned int) 0;
     const int is_unsigned = neg_one > const_zero;
     if (is_unsigned) {
-        if (sizeof(uint32_t) < sizeof(long)) {
+        if (sizeof(unsigned int) < sizeof(long)) {
             return PyInt_FromLong((long) value);
-        } else if (sizeof(uint32_t) <= sizeof(unsigned long)) {
+        } else if (sizeof(unsigned int) <= sizeof(unsigned long)) {
             return PyLong_FromUnsignedLong((unsigned long) value);
 #ifdef HAVE_LONG_LONG
-        } else if (sizeof(uint32_t) <= sizeof(unsigned PY_LONG_LONG)) {
+        } else if (sizeof(unsigned int) <= sizeof(unsigned PY_LONG_LONG)) {
             return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
 #endif
         }
     } else {
-        if (sizeof(uint32_t) <= sizeof(long)) {
+        if (sizeof(unsigned int) <= sizeof(long)) {
             return PyInt_FromLong((long) value);
 #ifdef HAVE_LONG_LONG
-        } else if (sizeof(uint32_t) <= sizeof(PY_LONG_LONG)) {
+        } else if (sizeof(unsigned int) <= sizeof(PY_LONG_LONG)) {
             return PyLong_FromLongLong((PY_LONG_LONG) value);
 #endif
         }
@@ -8494,7 +8129,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value) {
     {
         int one = 1; int little = (int)*(unsigned char *)&one;
         unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(uint32_t),
+        return _PyLong_FromByteArray(bytes, sizeof(unsigned int),
                                      little, !is_unsigned);
     }
 }
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index f5672c0b14..ce41eefb7a 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -22,34 +22,6 @@ cdef _byte_to_int_py2(b):
 _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3
 
 
-cpdef ft_hash(unicode string):
-    """Calculate hash based on `string`.
-    Reproduce `hash method from Facebook fastText implementation
-    <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.
-
-    This function is expensive because it encodes each input string as UTF-8,
-    and this can accumulate to a high computational cost if there are many
-    strings.  If possible, convert your strings to bytes and use the faster
-    :py:func:`ft_hash_bytes` function instead.
-
-    Parameters
-    ----------
-    string : unicode
-        The string whose hash needs to be calculated.
-
-    Returns
-    -------
-    unsigned int
-        The hash of the string.
-
-    """
-    cdef unsigned int h = 2166136261
-    for c in string.encode("utf-8"):
-        h = np.uint32(h ^ np.uint32(np.int8(_byte_to_int(c))))
-        h = np.uint32(h * np.uint32(16777619))
-    return h
-
-
 cpdef ft_hash_bytes(bytes bytez):
     """Calculate hash based on `bytez`.
     Reproduce `hash method from Facebook fastText implementation

From 8144e20f6146ac1d8eac7d5cbc6e88e3f88b82df Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Sun, 20 Jan 2019 19:30:31 +1100
Subject: [PATCH 06/32] review response: update docstring

---
 gensim/models/_fasttext_bin.py | 2 +-
 gensim/models/fasttext.py      | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/gensim/models/_fasttext_bin.py b/gensim/models/_fasttext_bin.py
index 2cbc530a96..ab88dbffda 100644
--- a/gensim/models/_fasttext_bin.py
+++ b/gensim/models/_fasttext_bin.py
@@ -231,7 +231,7 @@ def load(fin, encoding='utf-8', full_model=True):
         The encoding to use for decoding text
     full_model : boolean, optional
         If False, skips loading the hidden output matrix.  This saves a fair bit
-        of time, but prevents training continuation.
+        of CPU time and RAM, but prevents training continuation.
 
     Returns
     -------
diff --git a/gensim/models/fasttext.py b/gensim/models/fasttext.py
index b51494578c..1e0d442e65 100644
--- a/gensim/models/fasttext.py
+++ b/gensim/models/fasttext.py
@@ -779,7 +779,7 @@ def load_fasttext_format(cls, model_file, encoding='utf8', full_model=True):
             Specifies the file encoding.
         full_model : boolean, optional
             If False, skips loading the hidden output matrix.  This saves a fair bit
-            of time, but prevents training continuation.
+            of CPU time and RAM, but prevents training continuation.
 
         Returns
         -------
@@ -983,12 +983,13 @@ def _load_fasttext_format(model_file, encoding='utf-8', full_model=True):
         Specifies the file encoding.
     full_model : boolean, optional
         If False, skips loading the hidden output matrix.  This saves a fair bit
-        of time, but prevents training continuation.
+        of CPU time and RAM, but prevents training continuation.
 
     Returns
     -------
     :class: `~gensim.models.fasttext.FastText`
         The loaded model.
+
     """
     if not model_file.endswith('.bin'):
         model_file += '.bin'

From d735099720f64ec78c26a48560a4c5da008a5e82 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Mon, 21 Jan 2019 19:18:11 +1100
Subject: [PATCH 07/32] attempt to hack around appveyor Py2.7 build missing
 stdint.h

---
 gensim/models/_utils_any2vec.c   | 206 +++++++++++++++----------------
 gensim/models/_utils_any2vec.pyx |   5 +-
 gensim/models/stdint_wrapper.h   |  17 +++
 3 files changed, 123 insertions(+), 105 deletions(-)
 create mode 100644 gensim/models/stdint_wrapper.h

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index 3f498f12e2..67eee33698 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -608,7 +608,7 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __PYX_HAVE__gensim__models___utils_any2vec
 #define __PYX_HAVE_API__gensim__models___utils_any2vec
 /* Early includes */
-#include <stdint.h>
+#include "stdint_wrapper.h"
 #include <string.h>
 #include <stdio.h>
 #include "numpy/arrayobject.h"
@@ -1691,8 +1691,6 @@ static int __Pyx_check_binary_version(void);
 static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
 
 
-/* Module declarations from 'libc.stdint' */
-
 /* Module declarations from 'cpython.buffer' */
 
 /* Module declarations from 'libc.string' */
@@ -1824,7 +1822,7 @@ static PyObject *__pyx_tuple__10;
 static PyObject *__pyx_codeobj__11;
 /* Late includes */
 
-/* "gensim/models/_utils_any2vec.pyx":16
+/* "gensim/models/_utils_any2vec.pyx":19
  * 
  * 
  * cdef _byte_to_int_py3(b):             # <<<<<<<<<<<<<<
@@ -1837,7 +1835,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObj
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("_byte_to_int_py3", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":17
+  /* "gensim/models/_utils_any2vec.pyx":20
  * 
  * cdef _byte_to_int_py3(b):
  *     return b             # <<<<<<<<<<<<<<
@@ -1849,7 +1847,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObj
   __pyx_r = __pyx_v_b;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":16
+  /* "gensim/models/_utils_any2vec.pyx":19
  * 
  * 
  * cdef _byte_to_int_py3(b):             # <<<<<<<<<<<<<<
@@ -1864,7 +1862,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObj
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":19
+/* "gensim/models/_utils_any2vec.pyx":22
  *     return b
  * 
  * cdef _byte_to_int_py2(b):             # <<<<<<<<<<<<<<
@@ -1879,7 +1877,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
   PyObject *__pyx_t_2 = NULL;
   __Pyx_RefNannySetupContext("_byte_to_int_py2", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":20
+  /* "gensim/models/_utils_any2vec.pyx":23
  * 
  * cdef _byte_to_int_py2(b):
  *     return ord(b)             # <<<<<<<<<<<<<<
@@ -1887,14 +1885,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
  * _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_PyObject_Ord(__pyx_v_b); if (unlikely(__pyx_t_1 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 20, __pyx_L1_error)
-  __pyx_t_2 = __Pyx_PyInt_From_long(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 20, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Ord(__pyx_v_b); if (unlikely(__pyx_t_1 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 23, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_From_long(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 23, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_r = __pyx_t_2;
   __pyx_t_2 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":19
+  /* "gensim/models/_utils_any2vec.pyx":22
  *     return b
  * 
  * cdef _byte_to_int_py2(b):             # <<<<<<<<<<<<<<
@@ -1913,7 +1911,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":25
+/* "gensim/models/_utils_any2vec.pyx":28
  * 
  * 
  * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
@@ -1935,7 +1933,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
   PyObject *__pyx_t_6 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":41
+  /* "gensim/models/_utils_any2vec.pyx":44
  * 
  *     """
  *     cdef uint32_t h = 2166136261             # <<<<<<<<<<<<<<
@@ -1944,7 +1942,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":44
+  /* "gensim/models/_utils_any2vec.pyx":47
  *     cdef char b
  * 
  *     for b in bytez:             # <<<<<<<<<<<<<<
@@ -1953,7 +1951,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
  */
   if (unlikely(__pyx_v_bytez == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(0, 44, __pyx_L1_error)
+    __PYX_ERR(0, 47, __pyx_L1_error)
   }
   __Pyx_INCREF(__pyx_v_bytez);
   __pyx_t_1 = __pyx_v_bytez;
@@ -1963,7 +1961,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
     __pyx_t_2 = __pyx_t_5;
     __pyx_v_b = (__pyx_t_2[0]);
 
-    /* "gensim/models/_utils_any2vec.pyx":45
+    /* "gensim/models/_utils_any2vec.pyx":48
  * 
  *     for b in bytez:
  *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss             # <<<<<<<<<<<<<<
@@ -1972,7 +1970,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
  */
     __pyx_v_h = (__pyx_v_h ^ ((uint32_t)((int8_t)__pyx_v_b)));
 
-    /* "gensim/models/_utils_any2vec.pyx":46
+    /* "gensim/models/_utils_any2vec.pyx":49
  *     for b in bytez:
  *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
  *         h = h * 16777619             # <<<<<<<<<<<<<<
@@ -1983,7 +1981,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":47
+  /* "gensim/models/_utils_any2vec.pyx":50
  *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
  *         h = h * 16777619
  *     return h             # <<<<<<<<<<<<<<
@@ -1991,13 +1989,13 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_6 = __Pyx_PyInt_From_uint32_t(__pyx_v_h); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 47, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_From_uint32_t(__pyx_v_h); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 50, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __pyx_r = __pyx_t_6;
   __pyx_t_6 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":25
+  /* "gensim/models/_utils_any2vec.pyx":28
  * 
  * 
  * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
@@ -2024,7 +2022,7 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes(PyObje
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash_bytes (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_bytez), (&PyBytes_Type), 1, "bytez", 1))) __PYX_ERR(0, 25, __pyx_L1_error)
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_bytez), (&PyBytes_Type), 1, "bytez", 1))) __PYX_ERR(0, 28, __pyx_L1_error)
   __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_self, ((PyObject*)__pyx_v_bytez));
 
   /* function exit code */
@@ -2042,7 +2040,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_v_bytez, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_v_bytez, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 28, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2059,7 +2057,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":50
+/* "gensim/models/_utils_any2vec.pyx":53
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2084,7 +2082,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   long __pyx_t_9;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":67
+  /* "gensim/models/_utils_any2vec.pyx":70
  * 
  *     """
  *     cdef unsigned int h = 2166136261             # <<<<<<<<<<<<<<
@@ -2093,7 +2091,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":68
+  /* "gensim/models/_utils_any2vec.pyx":71
  *     """
  *     cdef unsigned int h = 2166136261
  *     for c in string:             # <<<<<<<<<<<<<<
@@ -2102,29 +2100,29 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   if (unlikely(__pyx_v_string == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(0, 68, __pyx_L1_error)
+    __PYX_ERR(0, 71, __pyx_L1_error)
   }
   __Pyx_INCREF(__pyx_v_string);
   __pyx_t_1 = __pyx_v_string;
-  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 68, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 71, __pyx_L1_error)
   for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_3; __pyx_t_7++) {
     __pyx_t_2 = __pyx_t_7;
-    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 68, __pyx_L1_error)
+    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 71, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_XDECREF_SET(__pyx_v_c, __pyx_t_8);
     __pyx_t_8 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":69
+    /* "gensim/models/_utils_any2vec.pyx":72
  *     cdef unsigned int h = 2166136261
  *     for c in string:
  *         h ^= ord(c)             # <<<<<<<<<<<<<<
  *         h *= 16777619
  *     return h
  */
-    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 69, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 72, __pyx_L1_error)
     __pyx_v_h = (__pyx_v_h ^ __pyx_t_9);
 
-    /* "gensim/models/_utils_any2vec.pyx":70
+    /* "gensim/models/_utils_any2vec.pyx":73
  *     for c in string:
  *         h ^= ord(c)
  *         h *= 16777619             # <<<<<<<<<<<<<<
@@ -2135,7 +2133,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":71
+  /* "gensim/models/_utils_any2vec.pyx":74
  *         h ^= ord(c)
  *         h *= 16777619
  *     return h             # <<<<<<<<<<<<<<
@@ -2143,13 +2141,13 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 71, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 74, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_8);
   __pyx_r = __pyx_t_8;
   __pyx_t_8 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":50
+  /* "gensim/models/_utils_any2vec.pyx":53
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2177,7 +2175,7 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObj
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash_broken (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 50, __pyx_L1_error)
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 53, __pyx_L1_error)
   __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(__pyx_self, ((PyObject*)__pyx_v_string));
 
   /* function exit code */
@@ -2195,7 +2193,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHO
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 50, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 53, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2212,7 +2210,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHO
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":74
+/* "gensim/models/_utils_any2vec.pyx":77
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2244,14 +2242,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":92
+  /* "gensim/models/_utils_any2vec.pyx":95
  * 
  *     """
  *     cdef unicode extended_word = f'<{word}>'             # <<<<<<<<<<<<<<
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  */
-  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
+  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = 0;
   __pyx_t_3 = 127;
@@ -2259,7 +2257,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u_);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_kp_u_);
-  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_3 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) > __pyx_t_3) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) : __pyx_t_3;
   __pyx_t_2 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_4);
@@ -2270,43 +2268,43 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u__2);
   PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_kp_u__2);
-  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_extended_word = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":93
+  /* "gensim/models/_utils_any2vec.pyx":96
  *     """
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []             # <<<<<<<<<<<<<<
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  */
-  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 93, __pyx_L1_error)
+  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 96, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_v_ngrams = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":94
+  /* "gensim/models/_utils_any2vec.pyx":97
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  */
-  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 94, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 97, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_5 = __pyx_v_max_n;
-  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 94, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 97, __pyx_L1_error)
   if (((__pyx_t_5 < __pyx_t_2) != 0)) {
     __pyx_t_6 = __pyx_t_5;
   } else {
     __pyx_t_6 = __pyx_t_2;
   }
-  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 94, __pyx_L1_error)
+  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 94, __pyx_L1_error)
+  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 97, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_GIVEREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_4);
@@ -2314,16 +2312,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_1);
   __pyx_t_4 = 0;
   __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 94, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
     __pyx_t_7 = __pyx_t_1; __Pyx_INCREF(__pyx_t_7); __pyx_t_6 = 0;
     __pyx_t_8 = NULL;
   } else {
-    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 94, __pyx_L1_error)
+    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 97, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 94, __pyx_L1_error)
+    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 97, __pyx_L1_error)
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   for (;;) {
@@ -2331,17 +2329,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (likely(PyList_CheckExact(__pyx_t_7))) {
         if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 94, __pyx_L1_error)
+        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 97, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 94, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       } else {
         if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 94, __pyx_L1_error)
+        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 97, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 94, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       }
@@ -2351,7 +2349,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         PyObject* exc_type = PyErr_Occurred();
         if (exc_type) {
           if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(0, 94, __pyx_L1_error)
+          else __PYX_ERR(0, 97, __pyx_L1_error)
         }
         break;
       }
@@ -2360,23 +2358,23 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_XDECREF_SET(__pyx_v_ngram_length, __pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":95
+    /* "gensim/models/_utils_any2vec.pyx":98
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams
  */
-    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 95, __pyx_L1_error)
-    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
+    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_int_0);
     __Pyx_GIVEREF(__pyx_int_0);
@@ -2384,16 +2382,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_GIVEREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
       __pyx_t_4 = __pyx_t_1; __Pyx_INCREF(__pyx_t_4); __pyx_t_2 = 0;
       __pyx_t_9 = NULL;
     } else {
-      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
+      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 95, __pyx_L1_error)
+      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 98, __pyx_L1_error)
     }
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     for (;;) {
@@ -2401,17 +2399,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         if (likely(PyList_CheckExact(__pyx_t_4))) {
           if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 95, __pyx_L1_error)
+          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 98, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         } else {
           if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 95, __pyx_L1_error)
+          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 98, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         }
@@ -2421,7 +2419,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
           PyObject* exc_type = PyErr_Occurred();
           if (exc_type) {
             if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-            else __PYX_ERR(0, 95, __pyx_L1_error)
+            else __PYX_ERR(0, 98, __pyx_L1_error)
           }
           break;
         }
@@ -2430,7 +2428,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_1);
       __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":96
+      /* "gensim/models/_utils_any2vec.pyx":99
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])             # <<<<<<<<<<<<<<
@@ -2442,26 +2440,26 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (__pyx_t_11) {
         __pyx_t_10 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 96, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 99, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 96, __pyx_L1_error)
+      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 99, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_11 = (__pyx_t_1 == Py_None);
       if (__pyx_t_11) {
         __pyx_t_12 = PY_SSIZE_T_MAX;
       } else {
-        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 96, __pyx_L1_error)
+        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 99, __pyx_L1_error)
         __pyx_t_12 = __pyx_t_13;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 96, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 99, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 96, __pyx_L1_error)
+      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 99, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":95
+      /* "gensim/models/_utils_any2vec.pyx":98
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
@@ -2471,7 +2469,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     }
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":94
+    /* "gensim/models/_utils_any2vec.pyx":97
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
@@ -2481,7 +2479,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   }
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":97
+  /* "gensim/models/_utils_any2vec.pyx":100
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams             # <<<<<<<<<<<<<<
@@ -2491,7 +2489,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_r = __pyx_v_ngrams;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":74
+  /* "gensim/models/_utils_any2vec.pyx":77
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2551,17 +2549,17 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObj
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 74, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 77, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 74, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 77, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 74, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 77, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -2571,12 +2569,12 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObj
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
     }
     __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 74, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 74, __pyx_L3_error)
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 77, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 77, __pyx_L3_error)
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 74, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 77, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2595,7 +2593,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHO
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 74, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 77, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -5332,7 +5330,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 94, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 97, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 272, __pyx_L1_error)
   __pyx_builtin_RuntimeError = __Pyx_GetBuiltinName(__pyx_n_s_RuntimeError); if (!__pyx_builtin_RuntimeError) __PYX_ERR(1, 856, __pyx_L1_error)
   __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(1, 1038, __pyx_L1_error)
@@ -5751,62 +5749,62 @@ if (!__Pyx_RefNanny) {
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "gensim/models/_utils_any2vec.pyx":11
+  /* "gensim/models/_utils_any2vec.pyx":14
+ *     ctypedef signed char int8_t
  * 
- * from libc.stdint cimport uint32_t, int8_t
  * from six import PY2             # <<<<<<<<<<<<<<
  * import numpy as np
  * cimport numpy as np
  */
-  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 11, __pyx_L1_error)
+  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 14, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_n_s_PY2);
   __Pyx_GIVEREF(__pyx_n_s_PY2);
   PyList_SET_ITEM(__pyx_t_1, 0, __pyx_n_s_PY2);
-  __pyx_t_2 = __Pyx_Import(__pyx_n_s_six, __pyx_t_1, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 11, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_Import(__pyx_n_s_six, __pyx_t_1, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 14, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_2, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 11, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_2, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 14, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_PY2, __pyx_t_1) < 0) __PYX_ERR(0, 11, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_PY2, __pyx_t_1) < 0) __PYX_ERR(0, 14, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":12
- * from libc.stdint cimport uint32_t, int8_t
+  /* "gensim/models/_utils_any2vec.pyx":15
+ * 
  * from six import PY2
  * import numpy as np             # <<<<<<<<<<<<<<
  * cimport numpy as np
  * 
  */
-  __pyx_t_2 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 12, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 15, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_2) < 0) __PYX_ERR(0, 12, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_2) < 0) __PYX_ERR(0, 15, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":22
+  /* "gensim/models/_utils_any2vec.pyx":25
  *     return ord(b)
  * 
  * _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 22, __pyx_L1_error)
+  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) __PYX_ERR(0, 22, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) __PYX_ERR(0, 25, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_3) {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 22, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_2 = __pyx_t_1;
     __pyx_t_1 = 0;
   } else {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 22, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_2 = __pyx_t_1;
     __pyx_t_1 = 0;
   }
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_byte_to_int, __pyx_t_2) < 0) __PYX_ERR(0, 22, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_byte_to_int, __pyx_t_2) < 0) __PYX_ERR(0, 25, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
   /* "gensim/models/_utils_any2vec.pyx":1
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index ce41eefb7a..22984026b1 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -7,7 +7,10 @@
 
 """General functions used for any2vec models."""
 
-from libc.stdint cimport uint32_t, int8_t
+cdef extern from "stdint_wrapper.h":
+    ctypedef unsigned int uint32_t
+    ctypedef signed char int8_t
+
 from six import PY2
 import numpy as np
 cimport numpy as np
diff --git a/gensim/models/stdint_wrapper.h b/gensim/models/stdint_wrapper.h
new file mode 100644
index 0000000000..e0e3b27c05
--- /dev/null
+++ b/gensim/models/stdint_wrapper.h
@@ -0,0 +1,17 @@
+/*
+ * This file is here to support older versions of the MSVC compiler that don't
+ * have stdint.h.
+ */
+#ifdef _MSC_VER
+    #ifndef _MSC_STDINT_H_
+        #if _MSC_VER < 1300
+           typedef unsigned char     uint8_t;
+           typedef unsigned int      uint32_t;
+        #else
+           typedef unsigned __int8   uint8_t;
+           typedef unsigned __int32  uint32_t;
+        #endif
+    #endif
+#else
+   #include <stdint.h>
+#endif

From fd3234085f0b39ab6956196b004cb2bc5936da9a Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Mon, 21 Jan 2019 19:23:53 +1100
Subject: [PATCH 08/32] fixup: add missing int8_t typedef

---
 gensim/models/stdint_wrapper.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gensim/models/stdint_wrapper.h b/gensim/models/stdint_wrapper.h
index e0e3b27c05..0b9832dedf 100644
--- a/gensim/models/stdint_wrapper.h
+++ b/gensim/models/stdint_wrapper.h
@@ -7,9 +7,11 @@
         #if _MSC_VER < 1300
            typedef unsigned char     uint8_t;
            typedef unsigned int      uint32_t;
+           typedef char              int8_t;
         #else
            typedef unsigned __int8   uint8_t;
            typedef unsigned __int32  uint32_t;
+           typedef char              int8_t;
         #endif
     #endif
 #else

From 8e7bd4007b40dd978489de397c4b80182abcdd90 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 21:51:29 +1100
Subject: [PATCH 09/32] review response: avoid split and join

---
 gensim/models/_utils_any2vec.c   | 1589 +++++++++++++++++++++---------
 gensim/models/_utils_any2vec.pyx |   55 ++
 gensim/models/fasttext.py        |   12 +-
 gensim/models/keyedvectors.py    |   27 +-
 gensim/models/utils_any2vec.py   |  173 +++-
 5 files changed, 1292 insertions(+), 564 deletions(-)

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index 67eee33698..04a0d2c2af 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -1286,45 +1286,49 @@ static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
     PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
     const char* function_name);
 
-/* PyThreadStateGet.proto */
-#if CYTHON_FAST_THREAD_STATE
-#define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
-#define __Pyx_PyThreadState_assign  __pyx_tstate = __Pyx_PyThreadState_Current;
-#define __Pyx_PyErr_Occurred()  __pyx_tstate->curexc_type
-#else
-#define __Pyx_PyThreadState_declare
-#define __Pyx_PyThreadState_assign
-#define __Pyx_PyErr_Occurred()  PyErr_Occurred()
-#endif
+/* GetItemInt.proto */
+#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
+    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) :\
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) :\
+               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
+#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
+    __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\
+    (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
+    __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\
+    (PyErr_SetString(PyExc_IndexError, "tuple index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck);
 
-/* PyErrFetchRestore.proto */
-#if CYTHON_FAST_THREAD_STATE
-#define __Pyx_PyErr_Clear() __Pyx_ErrRestore(NULL, NULL, NULL)
-#define __Pyx_ErrRestoreWithState(type, value, tb)  __Pyx_ErrRestoreInState(PyThreadState_GET(), type, value, tb)
-#define __Pyx_ErrFetchWithState(type, value, tb)    __Pyx_ErrFetchInState(PyThreadState_GET(), type, value, tb)
-#define __Pyx_ErrRestore(type, value, tb)  __Pyx_ErrRestoreInState(__pyx_tstate, type, value, tb)
-#define __Pyx_ErrFetch(type, value, tb)    __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb)
-static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
-static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
-#if CYTHON_COMPILING_IN_CPYTHON
-#define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL))
-#else
-#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
-#endif
+/* GetModuleGlobalName.proto */
+#if CYTHON_USE_DICT_VERSIONS
+#define __Pyx_GetModuleGlobalName(var, name)  {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
+        (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
+        __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
+}
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
+    PY_UINT64_T __pyx_dict_version;\
+    PyObject *__pyx_dict_cached_value;\
+    (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
+}
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
 #else
-#define __Pyx_PyErr_Clear() PyErr_Clear()
-#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
-#define __Pyx_ErrRestoreWithState(type, value, tb)  PyErr_Restore(type, value, tb)
-#define __Pyx_ErrFetchWithState(type, value, tb)  PyErr_Fetch(type, value, tb)
-#define __Pyx_ErrRestoreInState(tstate, type, value, tb)  PyErr_Restore(type, value, tb)
-#define __Pyx_ErrFetchInState(tstate, type, value, tb)  PyErr_Fetch(type, value, tb)
-#define __Pyx_ErrRestore(type, value, tb)  PyErr_Restore(type, value, tb)
-#define __Pyx_ErrFetch(type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
 #endif
 
-/* RaiseException.proto */
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
-
 /* PyCFunctionFastCall.proto */
 #if CYTHON_FAST_PYCCALL
 static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
@@ -1363,6 +1367,45 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject
 /* PyObjectCallOneArg.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
 
+/* PyThreadStateGet.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
+#define __Pyx_PyThreadState_assign  __pyx_tstate = __Pyx_PyThreadState_Current;
+#define __Pyx_PyErr_Occurred()  __pyx_tstate->curexc_type
+#else
+#define __Pyx_PyThreadState_declare
+#define __Pyx_PyThreadState_assign
+#define __Pyx_PyErr_Occurred()  PyErr_Occurred()
+#endif
+
+/* PyErrFetchRestore.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyErr_Clear() __Pyx_ErrRestore(NULL, NULL, NULL)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  __Pyx_ErrRestoreInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)    __Pyx_ErrFetchInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  __Pyx_ErrRestoreInState(__pyx_tstate, type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)    __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL))
+#else
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#endif
+#else
+#define __Pyx_PyErr_Clear() PyErr_Clear()
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestoreInState(tstate, type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchInState(tstate, type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)  PyErr_Fetch(type, value, tb)
+#endif
+
+/* RaiseException.proto */
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
+
 /* DictGetItem.proto */
 #if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
 static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key);
@@ -1499,27 +1542,6 @@ static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);
 /* ImportFrom.proto */
 static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);
 
-/* GetModuleGlobalName.proto */
-#if CYTHON_USE_DICT_VERSIONS
-#define __Pyx_GetModuleGlobalName(var, name)  {\
-    static PY_UINT64_T __pyx_dict_version = 0;\
-    static PyObject *__pyx_dict_cached_value = NULL;\
-    (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
-        (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
-        __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
-    PY_UINT64_T __pyx_dict_version;\
-    PyObject *__pyx_dict_cached_value;\
-    (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
-#else
-#define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
-#endif
-
 /* CLineInTraceback.proto */
 #ifdef CYTHON_CLINE_IN_TRACEBACK
 #define __Pyx_CLineForTraceback(tstate, c_line)  (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0)
@@ -1555,6 +1577,9 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value);
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value);
 
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
+
 /* RealImag.proto */
 #if CYTHON_CCOMPLEX
   #ifdef __cplusplus
@@ -1653,9 +1678,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value)
     #endif
 #endif
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
-
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value);
 
@@ -1727,6 +1749,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*)(PyObject *)); /*proto*/
 #define __Pyx_MODULE_NAME "gensim.models._utils_any2vec"
 extern int __pyx_module_is_main_gensim__models___utils_any2vec;
@@ -1753,6 +1776,8 @@ static const char __pyx_k_min_n[] = "min_n";
 static const char __pyx_k_numpy[] = "numpy";
 static const char __pyx_k_range[] = "range";
 static const char __pyx_k_import[] = "__import__";
+static const char __pyx_k_MB_MASK[] = "_MB_MASK";
+static const char __pyx_k_MB_START[] = "_MB_START";
 static const char __pyx_k_ValueError[] = "ValueError";
 static const char __pyx_k_ImportError[] = "ImportError";
 static const char __pyx_k_byte_to_int[] = "_byte_to_int";
@@ -1774,6 +1799,8 @@ static PyObject *__pyx_kp_u_;
 static PyObject *__pyx_kp_u_Format_string_allocated_too_shor;
 static PyObject *__pyx_kp_u_Format_string_allocated_too_shor_2;
 static PyObject *__pyx_n_s_ImportError;
+static PyObject *__pyx_n_s_MB_MASK;
+static PyObject *__pyx_n_s_MB_START;
 static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
 static PyObject *__pyx_n_s_PY2;
 static PyObject *__pyx_n_s_Pyx_CFunc_object____object___t;
@@ -1805,12 +1832,15 @@ static PyObject *__pyx_n_s_wrap;
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /* proto */
 static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_int_0;
 static PyObject *__pyx_int_1;
+static PyObject *__pyx_int_128;
+static PyObject *__pyx_int_192;
 static PyObject *__pyx_tuple__3;
 static PyObject *__pyx_tuple__4;
 static PyObject *__pyx_tuple__5;
@@ -2433,6 +2463,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])             # <<<<<<<<<<<<<<
  *     return ngrams
+ * 
  */
       __Pyx_INCREF(__pyx_v_i);
       __pyx_t_1 = __pyx_v_i;
@@ -2483,6 +2514,8 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams             # <<<<<<<<<<<<<<
+ * 
+ * #
  */
   __Pyx_XDECREF(__pyx_r);
   __Pyx_INCREF(__pyx_v_ngrams);
@@ -2610,115 +2643,579 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHO
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
- *         # experimental exception made for __getbuffer__ and __releasebuffer__
- *         # -- the details of this may change.
- *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
- *             # This implementation of getbuffer is geared towards Cython
- *             # requirements, and does not yet fulfill the PEP.
+/* "gensim/models/_utils_any2vec.pyx":110
+ * 
+ * 
+ * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
+ *     """Computes ngrams for a word.
+ * 
  */
 
-/* Python wrapper */
-static CYTHON_UNUSED int __pyx_pw_5numpy_7ndarray_1__getbuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /*proto*/
-static CYTHON_UNUSED int __pyx_pw_5numpy_7ndarray_1__getbuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags) {
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__getbuffer__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_5numpy_7ndarray___getbuffer__(((PyArrayObject *)__pyx_v_self), ((Py_buffer *)__pyx_v_info), ((int)__pyx_v_flags));
-
-  /* function exit code */
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags) {
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n, CYTHON_UNUSED int __pyx_skip_dispatch) {
+  PyObject *__pyx_v_utf8_word = 0;
+  int __pyx_v_num_bytes;
+  int __pyx_v_j;
   int __pyx_v_i;
-  int __pyx_v_ndim;
-  int __pyx_v_endian_detector;
-  int __pyx_v_little_endian;
-  int __pyx_v_t;
-  char *__pyx_v_f;
-  PyArray_Descr *__pyx_v_descr = 0;
-  int __pyx_v_offset;
-  int __pyx_r;
+  int __pyx_v_n;
+  PyObject *__pyx_v_ngrams = NULL;
+  PyObject *__pyx_v_ngram = NULL;
+  PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
-  int __pyx_t_1;
-  int __pyx_t_2;
-  PyObject *__pyx_t_3 = NULL;
-  int __pyx_t_4;
+  PyObject *__pyx_t_1 = NULL;
+  Py_ssize_t __pyx_t_2;
+  Py_UCS4 __pyx_t_3;
+  PyObject *__pyx_t_4 = NULL;
   int __pyx_t_5;
   int __pyx_t_6;
-  PyArray_Descr *__pyx_t_7;
+  int __pyx_t_7;
   PyObject *__pyx_t_8 = NULL;
-  char *__pyx_t_9;
-  if (__pyx_v_info == NULL) {
-    PyErr_SetString(PyExc_BufferError, "PyObject_GetBuffer: view==NULL argument is obsolete");
-    return -1;
-  }
-  __Pyx_RefNannySetupContext("__getbuffer__", 0);
-  __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
-  __Pyx_GIVEREF(__pyx_v_info->obj);
+  int __pyx_t_9;
+  int __pyx_t_10;
+  int __pyx_t_11;
+  int __pyx_t_12;
+  int __pyx_t_13;
+  int __pyx_t_14;
+  __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
+  /* "gensim/models/_utils_any2vec.pyx":134
  * 
- *             cdef int i, ndim
- *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
- *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
+ *     """
+ *     cdef bytes utf8_word = f'<{word}>'.encode("utf-8")             # <<<<<<<<<<<<<<
+ *     cdef int num_bytes = len(utf8_word)
+ *     cdef int j, i, n
+ */
+  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = 0;
+  __pyx_t_3 = 127;
+  __Pyx_INCREF(__pyx_kp_u_);
+  __pyx_t_2 += 1;
+  __Pyx_GIVEREF(__pyx_kp_u_);
+  PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_kp_u_);
+  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) > __pyx_t_3) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) : __pyx_t_3;
+  __pyx_t_2 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_4);
+  __Pyx_GIVEREF(__pyx_t_4);
+  PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_4);
+  __pyx_t_4 = 0;
+  __Pyx_INCREF(__pyx_kp_u__2);
+  __pyx_t_2 += 1;
+  __Pyx_GIVEREF(__pyx_kp_u__2);
+  PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_kp_u__2);
+  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_1 = PyUnicode_AsUTF8String(((PyObject*)__pyx_t_4)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __pyx_v_utf8_word = ((PyObject*)__pyx_t_1);
+  __pyx_t_1 = 0;
+
+  /* "gensim/models/_utils_any2vec.pyx":135
+ *     """
+ *     cdef bytes utf8_word = f'<{word}>'.encode("utf-8")
+ *     cdef int num_bytes = len(utf8_word)             # <<<<<<<<<<<<<<
+ *     cdef int j, i, n
  * 
  */
-  __pyx_v_endian_detector = 1;
+  if (unlikely(__pyx_v_utf8_word == Py_None)) {
+    PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
+    __PYX_ERR(0, 135, __pyx_L1_error)
+  }
+  __pyx_t_2 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 135, __pyx_L1_error)
+  __pyx_v_num_bytes = __pyx_t_2;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
- *             cdef int i, ndim
- *             cdef int endian_detector = 1
- *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
+  /* "gensim/models/_utils_any2vec.pyx":138
+ *     cdef int j, i, n
  * 
- *             ndim = PyArray_NDIM(self)
+ *     ngrams = []             # <<<<<<<<<<<<<<
+ *     for i in range(num_bytes):
+ *         ngram = []
  */
-  __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 138, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_v_ngrams = ((PyObject*)__pyx_t_1);
+  __pyx_t_1 = 0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
- *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
+  /* "gensim/models/_utils_any2vec.pyx":139
  * 
- *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
+ *     ngrams = []
+ *     for i in range(num_bytes):             # <<<<<<<<<<<<<<
+ *         ngram = []
  * 
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  */
-  __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
+  __pyx_t_5 = __pyx_v_num_bytes;
+  __pyx_t_6 = __pyx_t_5;
+  for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
+    __pyx_v_i = __pyx_t_7;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
- *             ndim = PyArray_NDIM(self)
+    /* "gensim/models/_utils_any2vec.pyx":140
+ *     ngrams = []
+ *     for i in range(num_bytes):
+ *         ngram = []             # <<<<<<<<<<<<<<
  * 
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not C contiguous")
+ *         if utf8_word[i] & _MB_MASK == _MB_START:
  */
-  __pyx_t_2 = (((__pyx_v_flags & PyBUF_C_CONTIGUOUS) == PyBUF_C_CONTIGUOUS) != 0);
-  if (__pyx_t_2) {
-  } else {
-    __pyx_t_1 = __pyx_t_2;
-    goto __pyx_L4_bool_binop_done;
-  }
+    __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_1);
+    __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_1));
+    __pyx_t_1 = 0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
+    /* "gensim/models/_utils_any2vec.pyx":142
+ *         ngram = []
  * 
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
- *                 raise ValueError(u"ndarray is not C contiguous")
+ *         if utf8_word[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
+ *             continue
  * 
  */
-  __pyx_t_2 = ((!(PyArray_CHKFLAGS(__pyx_v_self, NPY_ARRAY_C_CONTIGUOUS) != 0)) != 0);
-  __pyx_t_1 = __pyx_t_2;
-  __pyx_L4_bool_binop_done:;
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_i, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_1);
+    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_8);
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    if (__pyx_t_9) {
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
- *             ndim = PyArray_NDIM(self)
+      /* "gensim/models/_utils_any2vec.pyx":143
  * 
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not C contiguous")
+ *         if utf8_word[i] & _MB_MASK == _MB_START:
+ *             continue             # <<<<<<<<<<<<<<
+ * 
+ *         j, n = i, 1
  */
-  if (unlikely(__pyx_t_1)) {
+      goto __pyx_L3_continue;
+
+      /* "gensim/models/_utils_any2vec.pyx":142
+ *         ngram = []
+ * 
+ *         if utf8_word[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
+ *             continue
+ * 
+ */
+    }
+
+    /* "gensim/models/_utils_any2vec.pyx":145
+ *             continue
+ * 
+ *         j, n = i, 1             # <<<<<<<<<<<<<<
+ *         while j < num_bytes and n <= max_n:
+ *             ngram.append(utf8_word[j])
+ */
+    __pyx_t_10 = __pyx_v_i;
+    __pyx_t_11 = 1;
+    __pyx_v_j = __pyx_t_10;
+    __pyx_v_n = __pyx_t_11;
+
+    /* "gensim/models/_utils_any2vec.pyx":146
+ * 
+ *         j, n = i, 1
+ *         while j < num_bytes and n <= max_n:             # <<<<<<<<<<<<<<
+ *             ngram.append(utf8_word[j])
+ *             j += 1
+ */
+    while (1) {
+      __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
+      if (__pyx_t_12) {
+      } else {
+        __pyx_t_9 = __pyx_t_12;
+        goto __pyx_L8_bool_binop_done;
+      }
+      __pyx_t_12 = ((__pyx_v_n <= __pyx_v_max_n) != 0);
+      __pyx_t_9 = __pyx_t_12;
+      __pyx_L8_bool_binop_done:;
+      if (!__pyx_t_9) break;
+
+      /* "gensim/models/_utils_any2vec.pyx":147
+ *         j, n = i, 1
+ *         while j < num_bytes and n <= max_n:
+ *             ngram.append(utf8_word[j])             # <<<<<<<<<<<<<<
+ *             j += 1
+ *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+ */
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 147, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngram, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 147, __pyx_L1_error)
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+      /* "gensim/models/_utils_any2vec.pyx":148
+ *         while j < num_bytes and n <= max_n:
+ *             ngram.append(utf8_word[j])
+ *             j += 1             # <<<<<<<<<<<<<<
+ *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+ *                 ngram.append(utf8_word[j])
+ */
+      __pyx_v_j = (__pyx_v_j + 1);
+
+      /* "gensim/models/_utils_any2vec.pyx":149
+ *             ngram.append(utf8_word[j])
+ *             j += 1
+ *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:             # <<<<<<<<<<<<<<
+ *                 ngram.append(utf8_word[j])
+ *                 j += 1
+ */
+      while (1) {
+        __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
+        if (__pyx_t_12) {
+        } else {
+          __pyx_t_9 = __pyx_t_12;
+          goto __pyx_L12_bool_binop_done;
+        }
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_4);
+        __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_8);
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_4);
+        __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+        __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_12 < 0)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __pyx_t_9 = __pyx_t_12;
+        __pyx_L12_bool_binop_done:;
+        if (!__pyx_t_9) break;
+
+        /* "gensim/models/_utils_any2vec.pyx":150
+ *             j += 1
+ *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+ *                 ngram.append(utf8_word[j])             # <<<<<<<<<<<<<<
+ *                 j += 1
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+ */
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 150, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngram, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 150, __pyx_L1_error)
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+        /* "gensim/models/_utils_any2vec.pyx":151
+ *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+ *                 ngram.append(utf8_word[j])
+ *                 j += 1             # <<<<<<<<<<<<<<
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+ *                 ngrams.append(bytes(ngram))
+ */
+        __pyx_v_j = (__pyx_v_j + 1);
+      }
+
+      /* "gensim/models/_utils_any2vec.pyx":152
+ *                 ngram.append(utf8_word[j])
+ *                 j += 1
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
+ *                 ngrams.append(bytes(ngram))
+ *             n += 1
+ */
+      __pyx_t_12 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
+      if (__pyx_t_12) {
+      } else {
+        __pyx_t_9 = __pyx_t_12;
+        goto __pyx_L15_bool_binop_done;
+      }
+      __pyx_t_14 = ((__pyx_v_n == 1) != 0);
+      if (__pyx_t_14) {
+      } else {
+        __pyx_t_12 = __pyx_t_14;
+        goto __pyx_L17_bool_binop_done;
+      }
+      __pyx_t_14 = ((__pyx_v_i == 0) != 0);
+      if (!__pyx_t_14) {
+      } else {
+        __pyx_t_12 = __pyx_t_14;
+        goto __pyx_L17_bool_binop_done;
+      }
+      __pyx_t_14 = ((__pyx_v_j == __pyx_v_num_bytes) != 0);
+      __pyx_t_12 = __pyx_t_14;
+      __pyx_L17_bool_binop_done:;
+      __pyx_t_14 = ((!__pyx_t_12) != 0);
+      __pyx_t_9 = __pyx_t_14;
+      __pyx_L15_bool_binop_done:;
+      if (__pyx_t_9) {
+
+        /* "gensim/models/_utils_any2vec.pyx":153
+ *                 j += 1
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+ *                 ngrams.append(bytes(ngram))             # <<<<<<<<<<<<<<
+ *             n += 1
+ *     return ngrams
+ */
+        __pyx_t_1 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 153, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 153, __pyx_L1_error)
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+        /* "gensim/models/_utils_any2vec.pyx":152
+ *                 ngram.append(utf8_word[j])
+ *                 j += 1
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
+ *                 ngrams.append(bytes(ngram))
+ *             n += 1
+ */
+      }
+
+      /* "gensim/models/_utils_any2vec.pyx":154
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+ *                 ngrams.append(bytes(ngram))
+ *             n += 1             # <<<<<<<<<<<<<<
+ *     return ngrams
+ */
+      __pyx_v_n = (__pyx_v_n + 1);
+    }
+    __pyx_L3_continue:;
+  }
+
+  /* "gensim/models/_utils_any2vec.pyx":155
+ *                 ngrams.append(bytes(ngram))
+ *             n += 1
+ *     return ngrams             # <<<<<<<<<<<<<<
+ */
+  __Pyx_XDECREF(__pyx_r);
+  __Pyx_INCREF(__pyx_v_ngrams);
+  __pyx_r = __pyx_v_ngrams;
+  goto __pyx_L0;
+
+  /* "gensim/models/_utils_any2vec.pyx":110
+ * 
+ * 
+ * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
+ *     """Computes ngrams for a word.
+ * 
+ */
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_4);
+  __Pyx_XDECREF(__pyx_t_8);
+  __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_v_utf8_word);
+  __Pyx_XDECREF(__pyx_v_ngrams);
+  __Pyx_XDECREF(__pyx_v_ngram);
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* Python wrapper */
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes[] = "compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n)\nComputes ngrams for a word.\n\n    Ported from the original FB implementation.\n\n    Parameters\n    ----------\n    word : str\n        A unicode string.\n    min_n : unsigned int\n        The minimum ngram length.\n    max_n : unsigned int\n        The maximum ngram length.\n\n    Returns:\n    --------\n    list\n        A list of ngrams, where each ngram is a list of **bytes**.\n\n    See Also\n    --------\n    `Original implementation <https://github.com/facebookresearch/fastText/blob/7842495a4d64c7a3bb4339d45d6e64321d002ed8/src/dictionary.cc#L172>`__\n\n    ";
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+  PyObject *__pyx_v_word = 0;
+  unsigned int __pyx_v_min_n;
+  unsigned int __pyx_v_max_n;
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("compute_ngrams_bytes (wrapper)", 0);
+  {
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_word,&__pyx_n_s_min_n,&__pyx_n_s_max_n,0};
+    PyObject* values[3] = {0,0,0};
+    if (unlikely(__pyx_kwds)) {
+      Py_ssize_t kw_args;
+      const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
+      switch (pos_args) {
+        case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
+        CYTHON_FALLTHROUGH;
+        case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
+        CYTHON_FALLTHROUGH;
+        case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+        CYTHON_FALLTHROUGH;
+        case  0: break;
+        default: goto __pyx_L5_argtuple_error;
+      }
+      kw_args = PyDict_Size(__pyx_kwds);
+      switch (pos_args) {
+        case  0:
+        if (likely((values[0] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_word)) != 0)) kw_args--;
+        else goto __pyx_L5_argtuple_error;
+        CYTHON_FALLTHROUGH;
+        case  1:
+        if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 1); __PYX_ERR(0, 110, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  2:
+        if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 2); __PYX_ERR(0, 110, __pyx_L3_error)
+        }
+      }
+      if (unlikely(kw_args > 0)) {
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes") < 0)) __PYX_ERR(0, 110, __pyx_L3_error)
+      }
+    } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
+      goto __pyx_L5_argtuple_error;
+    } else {
+      values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+      values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
+      values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
+    }
+    __pyx_v_word = values[0];
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 110, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 110, __pyx_L3_error)
+  }
+  goto __pyx_L4_argument_unpacking_done;
+  __pyx_L5_argtuple_error:;
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 110, __pyx_L3_error)
+  __pyx_L3_error:;
+  __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_RefNannyFinishContext();
+  return NULL;
+  __pyx_L4_argument_unpacking_done:;
+  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes(__pyx_self, __pyx_v_word, __pyx_v_min_n, __pyx_v_max_n);
+
+  /* function exit code */
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_r = __pyx_t_1;
+  __pyx_t_1 = 0;
+  goto __pyx_L0;
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
+ *         # experimental exception made for __getbuffer__ and __releasebuffer__
+ *         # -- the details of this may change.
+ *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
+ *             # This implementation of getbuffer is geared towards Cython
+ *             # requirements, and does not yet fulfill the PEP.
+ */
+
+/* Python wrapper */
+static CYTHON_UNUSED int __pyx_pw_5numpy_7ndarray_1__getbuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /*proto*/
+static CYTHON_UNUSED int __pyx_pw_5numpy_7ndarray_1__getbuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags) {
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__getbuffer__ (wrapper)", 0);
+  __pyx_r = __pyx_pf_5numpy_7ndarray___getbuffer__(((PyArrayObject *)__pyx_v_self), ((Py_buffer *)__pyx_v_info), ((int)__pyx_v_flags));
+
+  /* function exit code */
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags) {
+  int __pyx_v_i;
+  int __pyx_v_ndim;
+  int __pyx_v_endian_detector;
+  int __pyx_v_little_endian;
+  int __pyx_v_t;
+  char *__pyx_v_f;
+  PyArray_Descr *__pyx_v_descr = 0;
+  int __pyx_v_offset;
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  int __pyx_t_1;
+  int __pyx_t_2;
+  PyObject *__pyx_t_3 = NULL;
+  int __pyx_t_4;
+  int __pyx_t_5;
+  int __pyx_t_6;
+  PyArray_Descr *__pyx_t_7;
+  PyObject *__pyx_t_8 = NULL;
+  char *__pyx_t_9;
+  if (__pyx_v_info == NULL) {
+    PyErr_SetString(PyExc_BufferError, "PyObject_GetBuffer: view==NULL argument is obsolete");
+    return -1;
+  }
+  __Pyx_RefNannySetupContext("__getbuffer__", 0);
+  __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
+  __Pyx_GIVEREF(__pyx_v_info->obj);
+
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
+ * 
+ *             cdef int i, ndim
+ *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
+ *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
+ * 
+ */
+  __pyx_v_endian_detector = 1;
+
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
+ *             cdef int i, ndim
+ *             cdef int endian_detector = 1
+ *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
+ * 
+ *             ndim = PyArray_NDIM(self)
+ */
+  __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
+
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
+ *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
+ * 
+ *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
+ * 
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
+ */
+  __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
+
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+ *             ndim = PyArray_NDIM(self)
+ * 
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not C contiguous")
+ */
+  __pyx_t_2 = (((__pyx_v_flags & PyBUF_C_CONTIGUOUS) == PyBUF_C_CONTIGUOUS) != 0);
+  if (__pyx_t_2) {
+  } else {
+    __pyx_t_1 = __pyx_t_2;
+    goto __pyx_L4_bool_binop_done;
+  }
+
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
+ * 
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
+ *                 raise ValueError(u"ndarray is not C contiguous")
+ * 
+ */
+  __pyx_t_2 = ((!(PyArray_CHKFLAGS(__pyx_v_self, NPY_ARRAY_C_CONTIGUOUS) != 0)) != 0);
+  __pyx_t_1 = __pyx_t_2;
+  __pyx_L4_bool_binop_done:;
+
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+ *             ndim = PyArray_NDIM(self)
+ * 
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not C contiguous")
+ */
+  if (unlikely(__pyx_t_1)) {
 
     /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
@@ -5250,6 +5747,7 @@ static PyMethodDef __pyx_methods[] = {
   {"ft_hash_bytes", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash_bytes},
   {"ft_hash_broken", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_broken},
   {"compute_ngrams", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_4compute_ngrams},
+  {"compute_ngrams_bytes", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes},
   {0, 0, 0, 0}
 };
 
@@ -5299,6 +5797,8 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_u_Format_string_allocated_too_shor, __pyx_k_Format_string_allocated_too_shor, sizeof(__pyx_k_Format_string_allocated_too_shor), 0, 1, 0, 0},
   {&__pyx_kp_u_Format_string_allocated_too_shor_2, __pyx_k_Format_string_allocated_too_shor_2, sizeof(__pyx_k_Format_string_allocated_too_shor_2), 0, 1, 0, 0},
   {&__pyx_n_s_ImportError, __pyx_k_ImportError, sizeof(__pyx_k_ImportError), 0, 0, 1, 1},
+  {&__pyx_n_s_MB_MASK, __pyx_k_MB_MASK, sizeof(__pyx_k_MB_MASK), 0, 0, 1, 1},
+  {&__pyx_n_s_MB_START, __pyx_k_MB_START, sizeof(__pyx_k_MB_START), 0, 0, 1, 1},
   {&__pyx_kp_u_Non_native_byte_order_not_suppor, __pyx_k_Non_native_byte_order_not_suppor, sizeof(__pyx_k_Non_native_byte_order_not_suppor), 0, 1, 0, 0},
   {&__pyx_n_s_PY2, __pyx_k_PY2, sizeof(__pyx_k_PY2), 0, 0, 1, 1},
   {&__pyx_n_s_Pyx_CFunc_object____object___t, __pyx_k_Pyx_CFunc_object____object___t, sizeof(__pyx_k_Pyx_CFunc_object____object___t), 0, 0, 1, 1},
@@ -5442,6 +5942,8 @@ static CYTHON_SMALL_CODE int __Pyx_InitGlobals(void) {
   if (__Pyx_InitStrings(__pyx_string_tab) < 0) __PYX_ERR(0, 1, __pyx_L1_error);
   __pyx_int_0 = PyInt_FromLong(0); if (unlikely(!__pyx_int_0)) __PYX_ERR(0, 1, __pyx_L1_error)
   __pyx_int_1 = PyInt_FromLong(1); if (unlikely(!__pyx_int_1)) __PYX_ERR(0, 1, __pyx_L1_error)
+  __pyx_int_128 = PyInt_FromLong(128); if (unlikely(!__pyx_int_128)) __PYX_ERR(0, 1, __pyx_L1_error)
+  __pyx_int_192 = PyInt_FromLong(192); if (unlikely(!__pyx_int_192)) __PYX_ERR(0, 1, __pyx_L1_error)
   return 0;
   __pyx_L1_error:;
   return -1;
@@ -5807,6 +6309,24 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_byte_to_int, __pyx_t_2) < 0) __PYX_ERR(0, 25, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
+  /* "gensim/models/_utils_any2vec.pyx":106
+ * # as opposed to a new character.
+ * #
+ * _MB_MASK = 0xC0             # <<<<<<<<<<<<<<
+ * _MB_START = 0x80
+ * 
+ */
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_MASK, __pyx_int_192) < 0) __PYX_ERR(0, 106, __pyx_L1_error)
+
+  /* "gensim/models/_utils_any2vec.pyx":107
+ * #
+ * _MB_MASK = 0xC0
+ * _MB_START = 0x80             # <<<<<<<<<<<<<<
+ * 
+ * 
+ */
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_START, __pyx_int_128) < 0) __PYX_ERR(0, 107, __pyx_L1_error)
+
   /* "gensim/models/_utils_any2vec.pyx":1
  * #!/usr/bin/env cython             # <<<<<<<<<<<<<<
  * # cython: boundscheck=False
@@ -6344,26 +6864,350 @@ static int __Pyx_ParseOptionalKeywords(
             goto invalid_keyword;
         }
     }
-    return 0;
-arg_passed_twice:
-    __Pyx_RaiseDoubleKeywordsError(function_name, key);
-    goto bad;
-invalid_keyword_type:
-    PyErr_Format(PyExc_TypeError,
-        "%.200s() keywords must be strings", function_name);
-    goto bad;
-invalid_keyword:
-    PyErr_Format(PyExc_TypeError,
-    #if PY_MAJOR_VERSION < 3
-        "%.200s() got an unexpected keyword argument '%.200s'",
-        function_name, PyString_AsString(key));
-    #else
-        "%s() got an unexpected keyword argument '%U'",
-        function_name, key);
-    #endif
-bad:
-    return -1;
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, key);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    return -1;
+}
+
+/* GetItemInt */
+static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
+    PyObject *r;
+    if (!j) return NULL;
+    r = PyObject_GetItem(o, j);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              CYTHON_NCP_UNUSED int wraparound,
+                                                              CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    Py_ssize_t wrapped_i = i;
+    if (wraparound & unlikely(i < 0)) {
+        wrapped_i += PyList_GET_SIZE(o);
+    }
+    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyList_GET_SIZE(o)))) {
+        PyObject *r = PyList_GET_ITEM(o, wrapped_i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              CYTHON_NCP_UNUSED int wraparound,
+                                                              CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    Py_ssize_t wrapped_i = i;
+    if (wraparound & unlikely(i < 0)) {
+        wrapped_i += PyTuple_GET_SIZE(o);
+    }
+    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyTuple_GET_SIZE(o)))) {
+        PyObject *r = PyTuple_GET_ITEM(o, wrapped_i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, int is_list,
+                                                     CYTHON_NCP_UNUSED int wraparound,
+                                                     CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
+        if ((!boundscheck) || (likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o))))) {
+            PyObject *r = PyList_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    }
+    else if (PyTuple_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
+        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
+                        return NULL;
+                    PyErr_Clear();
+                }
+            }
+            return m->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || PySequence_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+/* GetModuleGlobalName */
+#if CYTHON_USE_DICT_VERSIONS
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
+#else
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
+#endif
+{
+    PyObject *result;
+#if !CYTHON_AVOID_BORROWED_REFS
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
+    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    } else if (unlikely(PyErr_Occurred())) {
+        return NULL;
+    }
+#else
+    result = PyDict_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+#endif
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+    PyErr_Clear();
+#endif
+    return __Pyx_GetBuiltinName(name);
+}
+
+/* PyCFunctionFastCall */
+#if CYTHON_FAST_PYCCALL
+static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
+    PyCFunctionObject *func = (PyCFunctionObject*)func_obj;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    int flags = PyCFunction_GET_FLAGS(func);
+    assert(PyCFunction_Check(func));
+    assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS)));
+    assert(nargs >= 0);
+    assert(nargs == 0 || args != NULL);
+    /* _PyCFunction_FastCallDict() must not be called with an exception set,
+       because it may clear it (directly or indirectly) and so the
+       caller loses its exception */
+    assert(!PyErr_Occurred());
+    if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) {
+        return (*((__Pyx_PyCFunctionFastWithKeywords)(void*)meth)) (self, args, nargs, NULL);
+    } else {
+        return (*((__Pyx_PyCFunctionFast)(void*)meth)) (self, args, nargs);
+    }
+}
+#endif
+
+/* PyFunctionFastCall */
+#if CYTHON_FAST_PYCALL
+static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
+                                               PyObject *globals) {
+    PyFrameObject *f;
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    PyObject **fastlocals;
+    Py_ssize_t i;
+    PyObject *result;
+    assert(globals != NULL);
+    /* XXX Perhaps we should create a specialized
+       PyFrame_New() that doesn't take locals, but does
+       take builtins without sanity checking them.
+       */
+    assert(tstate != NULL);
+    f = PyFrame_New(tstate, co, globals, NULL);
+    if (f == NULL) {
+        return NULL;
+    }
+    fastlocals = __Pyx_PyFrame_GetLocalsplus(f);
+    for (i = 0; i < na; i++) {
+        Py_INCREF(*args);
+        fastlocals[i] = *args++;
+    }
+    result = PyEval_EvalFrameEx(f,0);
+    ++tstate->recursion_depth;
+    Py_DECREF(f);
+    --tstate->recursion_depth;
+    return result;
+}
+#if 1 || PY_VERSION_HEX < 0x030600B1
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
+    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
+    PyObject *globals = PyFunction_GET_GLOBALS(func);
+    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
+    PyObject *closure;
+#if PY_MAJOR_VERSION >= 3
+    PyObject *kwdefs;
+#endif
+    PyObject *kwtuple, **k;
+    PyObject **d;
+    Py_ssize_t nd;
+    Py_ssize_t nk;
+    PyObject *result;
+    assert(kwargs == NULL || PyDict_Check(kwargs));
+    nk = kwargs ? PyDict_Size(kwargs) : 0;
+    if (Py_EnterRecursiveCall((char*)" while calling a Python object")) {
+        return NULL;
+    }
+    if (
+#if PY_MAJOR_VERSION >= 3
+            co->co_kwonlyargcount == 0 &&
+#endif
+            likely(kwargs == NULL || nk == 0) &&
+            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
+        if (argdefs == NULL && co->co_argcount == nargs) {
+            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
+            goto done;
+        }
+        else if (nargs == 0 && argdefs != NULL
+                 && co->co_argcount == Py_SIZE(argdefs)) {
+            /* function called with no arguments, but all parameters have
+               a default value: use default values as arguments .*/
+            args = &PyTuple_GET_ITEM(argdefs, 0);
+            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
+            goto done;
+        }
+    }
+    if (kwargs != NULL) {
+        Py_ssize_t pos, i;
+        kwtuple = PyTuple_New(2 * nk);
+        if (kwtuple == NULL) {
+            result = NULL;
+            goto done;
+        }
+        k = &PyTuple_GET_ITEM(kwtuple, 0);
+        pos = i = 0;
+        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
+            Py_INCREF(k[i]);
+            Py_INCREF(k[i+1]);
+            i += 2;
+        }
+        nk = i / 2;
+    }
+    else {
+        kwtuple = NULL;
+        k = NULL;
+    }
+    closure = PyFunction_GET_CLOSURE(func);
+#if PY_MAJOR_VERSION >= 3
+    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
+#endif
+    if (argdefs != NULL) {
+        d = &PyTuple_GET_ITEM(argdefs, 0);
+        nd = Py_SIZE(argdefs);
+    }
+    else {
+        d = NULL;
+        nd = 0;
+    }
+#if PY_MAJOR_VERSION >= 3
+    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
+                               args, nargs,
+                               k, (int)nk,
+                               d, (int)nd, kwdefs, closure);
+#else
+    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
+                               args, nargs,
+                               k, (int)nk,
+                               d, (int)nd, closure);
+#endif
+    Py_XDECREF(kwtuple);
+done:
+    Py_LeaveRecursiveCall();
+    return result;
+}
+#endif
+#endif
+
+/* PyObjectCallMethO */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+/* PyObjectCallOneArg */
+#if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(func)) {
+        return __Pyx_PyFunction_FastCall(func, &arg, 1);
+    }
+#endif
+    if (likely(PyCFunction_Check(func))) {
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+#if CYTHON_FAST_PYCCALL
+        } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) {
+            return __Pyx_PyCFunction_FastCall(func, &arg, 1);
+#endif
+        }
+    }
+    return __Pyx__PyObject_CallOneArg(func, arg);
+}
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_Pack(1, arg);
+    if (unlikely(!args)) return NULL;
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
 }
+#endif
 
 /* PyErrFetchRestore */
 #if CYTHON_FAST_THREAD_STATE
@@ -6474,279 +7318,77 @@ static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject
                 } else {
                     type = instance_class;
                 }
-            }
-        }
-        if (!instance_class) {
-            PyObject *args;
-            if (!value)
-                args = PyTuple_New(0);
-            else if (PyTuple_Check(value)) {
-                Py_INCREF(value);
-                args = value;
-            } else
-                args = PyTuple_Pack(1, value);
-            if (!args)
-                goto bad;
-            owned_instance = PyObject_Call(type, args, NULL);
-            Py_DECREF(args);
-            if (!owned_instance)
-                goto bad;
-            value = owned_instance;
-            if (!PyExceptionInstance_Check(value)) {
-                PyErr_Format(PyExc_TypeError,
-                             "calling %R should have returned an instance of "
-                             "BaseException, not %R",
-                             type, Py_TYPE(value));
-                goto bad;
-            }
-        }
-    } else {
-        PyErr_SetString(PyExc_TypeError,
-            "raise: exception class must be a subclass of BaseException");
-        goto bad;
-    }
-    if (cause) {
-        PyObject *fixed_cause;
-        if (cause == Py_None) {
-            fixed_cause = NULL;
-        } else if (PyExceptionClass_Check(cause)) {
-            fixed_cause = PyObject_CallObject(cause, NULL);
-            if (fixed_cause == NULL)
-                goto bad;
-        } else if (PyExceptionInstance_Check(cause)) {
-            fixed_cause = cause;
-            Py_INCREF(fixed_cause);
-        } else {
-            PyErr_SetString(PyExc_TypeError,
-                            "exception causes must derive from "
-                            "BaseException");
-            goto bad;
-        }
-        PyException_SetCause(value, fixed_cause);
-    }
-    PyErr_SetObject(type, value);
-    if (tb) {
-#if CYTHON_COMPILING_IN_PYPY
-        PyObject *tmp_type, *tmp_value, *tmp_tb;
-        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
-        Py_INCREF(tb);
-        PyErr_Restore(tmp_type, tmp_value, tb);
-        Py_XDECREF(tmp_tb);
-#else
-        PyThreadState *tstate = __Pyx_PyThreadState_Current;
-        PyObject* tmp_tb = tstate->curexc_traceback;
-        if (tb != tmp_tb) {
-            Py_INCREF(tb);
-            tstate->curexc_traceback = tb;
-            Py_XDECREF(tmp_tb);
-        }
-#endif
-    }
-bad:
-    Py_XDECREF(owned_instance);
-    return;
-}
-#endif
-
-/* PyCFunctionFastCall */
-#if CYTHON_FAST_PYCCALL
-static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
-    PyCFunctionObject *func = (PyCFunctionObject*)func_obj;
-    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
-    PyObject *self = PyCFunction_GET_SELF(func);
-    int flags = PyCFunction_GET_FLAGS(func);
-    assert(PyCFunction_Check(func));
-    assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS)));
-    assert(nargs >= 0);
-    assert(nargs == 0 || args != NULL);
-    /* _PyCFunction_FastCallDict() must not be called with an exception set,
-       because it may clear it (directly or indirectly) and so the
-       caller loses its exception */
-    assert(!PyErr_Occurred());
-    if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) {
-        return (*((__Pyx_PyCFunctionFastWithKeywords)(void*)meth)) (self, args, nargs, NULL);
-    } else {
-        return (*((__Pyx_PyCFunctionFast)(void*)meth)) (self, args, nargs);
-    }
-}
-#endif
-
-/* PyFunctionFastCall */
-#if CYTHON_FAST_PYCALL
-static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
-                                               PyObject *globals) {
-    PyFrameObject *f;
-    PyThreadState *tstate = __Pyx_PyThreadState_Current;
-    PyObject **fastlocals;
-    Py_ssize_t i;
-    PyObject *result;
-    assert(globals != NULL);
-    /* XXX Perhaps we should create a specialized
-       PyFrame_New() that doesn't take locals, but does
-       take builtins without sanity checking them.
-       */
-    assert(tstate != NULL);
-    f = PyFrame_New(tstate, co, globals, NULL);
-    if (f == NULL) {
-        return NULL;
-    }
-    fastlocals = __Pyx_PyFrame_GetLocalsplus(f);
-    for (i = 0; i < na; i++) {
-        Py_INCREF(*args);
-        fastlocals[i] = *args++;
-    }
-    result = PyEval_EvalFrameEx(f,0);
-    ++tstate->recursion_depth;
-    Py_DECREF(f);
-    --tstate->recursion_depth;
-    return result;
-}
-#if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
-    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
-    PyObject *globals = PyFunction_GET_GLOBALS(func);
-    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
-    PyObject *closure;
-#if PY_MAJOR_VERSION >= 3
-    PyObject *kwdefs;
-#endif
-    PyObject *kwtuple, **k;
-    PyObject **d;
-    Py_ssize_t nd;
-    Py_ssize_t nk;
-    PyObject *result;
-    assert(kwargs == NULL || PyDict_Check(kwargs));
-    nk = kwargs ? PyDict_Size(kwargs) : 0;
-    if (Py_EnterRecursiveCall((char*)" while calling a Python object")) {
-        return NULL;
-    }
-    if (
-#if PY_MAJOR_VERSION >= 3
-            co->co_kwonlyargcount == 0 &&
-#endif
-            likely(kwargs == NULL || nk == 0) &&
-            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
-        if (argdefs == NULL && co->co_argcount == nargs) {
-            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
-            goto done;
-        }
-        else if (nargs == 0 && argdefs != NULL
-                 && co->co_argcount == Py_SIZE(argdefs)) {
-            /* function called with no arguments, but all parameters have
-               a default value: use default values as arguments .*/
-            args = &PyTuple_GET_ITEM(argdefs, 0);
-            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
-            goto done;
-        }
-    }
-    if (kwargs != NULL) {
-        Py_ssize_t pos, i;
-        kwtuple = PyTuple_New(2 * nk);
-        if (kwtuple == NULL) {
-            result = NULL;
-            goto done;
+            }
         }
-        k = &PyTuple_GET_ITEM(kwtuple, 0);
-        pos = i = 0;
-        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
-            Py_INCREF(k[i]);
-            Py_INCREF(k[i+1]);
-            i += 2;
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
         }
-        nk = i / 2;
-    }
-    else {
-        kwtuple = NULL;
-        k = NULL;
-    }
-    closure = PyFunction_GET_CLOSURE(func);
-#if PY_MAJOR_VERSION >= 3
-    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
-#endif
-    if (argdefs != NULL) {
-        d = &PyTuple_GET_ITEM(argdefs, 0);
-        nd = Py_SIZE(argdefs);
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
     }
-    else {
-        d = NULL;
-        nd = 0;
+    if (cause) {
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
     }
-#if PY_MAJOR_VERSION >= 3
-    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
-                               args, nargs,
-                               k, (int)nk,
-                               d, (int)nd, kwdefs, closure);
+    PyErr_SetObject(type, value);
+    if (tb) {
+#if CYTHON_COMPILING_IN_PYPY
+        PyObject *tmp_type, *tmp_value, *tmp_tb;
+        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
+        Py_INCREF(tb);
+        PyErr_Restore(tmp_type, tmp_value, tb);
+        Py_XDECREF(tmp_tb);
 #else
-    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
-                               args, nargs,
-                               k, (int)nk,
-                               d, (int)nd, closure);
-#endif
-    Py_XDECREF(kwtuple);
-done:
-    Py_LeaveRecursiveCall();
-    return result;
-}
-#endif
-#endif
-
-/* PyObjectCallMethO */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
-    PyObject *self, *result;
-    PyCFunction cfunc;
-    cfunc = PyCFunction_GET_FUNCTION(func);
-    self = PyCFunction_GET_SELF(func);
-    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
-        return NULL;
-    result = cfunc(self, arg);
-    Py_LeaveRecursiveCall();
-    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
-        PyErr_SetString(
-            PyExc_SystemError,
-            "NULL result without error in PyObject_Call");
-    }
-    return result;
-}
-#endif
-
-/* PyObjectCallOneArg */
-#if CYTHON_COMPILING_IN_CPYTHON
-static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-    PyObject *result;
-    PyObject *args = PyTuple_New(1);
-    if (unlikely(!args)) return NULL;
-    Py_INCREF(arg);
-    PyTuple_SET_ITEM(args, 0, arg);
-    result = __Pyx_PyObject_Call(func, args, NULL);
-    Py_DECREF(args);
-    return result;
-}
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-#if CYTHON_FAST_PYCALL
-    if (PyFunction_Check(func)) {
-        return __Pyx_PyFunction_FastCall(func, &arg, 1);
-    }
-#endif
-    if (likely(PyCFunction_Check(func))) {
-        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
-            return __Pyx_PyObject_CallMethO(func, arg);
-#if CYTHON_FAST_PYCCALL
-        } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) {
-            return __Pyx_PyCFunction_FastCall(func, &arg, 1);
-#endif
+        PyThreadState *tstate = __Pyx_PyThreadState_Current;
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
         }
+#endif
     }
-    return __Pyx__PyObject_CallOneArg(func, arg);
-}
-#else
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
-    PyObject *result;
-    PyObject *args = PyTuple_Pack(1, arg);
-    if (unlikely(!args)) return NULL;
-    result = __Pyx_PyObject_Call(func, args, NULL);
-    Py_DECREF(args);
-    return result;
+bad:
+    Py_XDECREF(owned_instance);
+    return;
 }
 #endif
 
@@ -7775,41 +8417,6 @@ static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
     return value;
 }
 
-/* GetModuleGlobalName */
-#if CYTHON_USE_DICT_VERSIONS
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
-#else
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
-#endif
-{
-    PyObject *result;
-#if !CYTHON_AVOID_BORROWED_REFS
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
-    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    } else if (unlikely(PyErr_Occurred())) {
-        return NULL;
-    }
-#else
-    result = PyDict_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    }
-#endif
-#else
-    result = PyObject_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    }
-    PyErr_Clear();
-#endif
-    return __Pyx_GetBuiltinName(name);
-}
-
 /* CLineInTraceback */
 #ifndef CYTHON_CLINE_IN_TRACEBACK
 static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
@@ -8132,6 +8739,37 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value)
     }
 }
 
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
 /* Declarations */
 #if CYTHON_CCOMPLEX
   #ifdef __cplusplus
@@ -8442,37 +9080,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value)
     #endif
 #endif
 
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
-    const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(int) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(int) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(int) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(int),
-                                     little, !is_unsigned);
-    }
-}
-
 /* CIntToPy */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value) {
     const enum NPY_TYPES neg_one = (enum NPY_TYPES) ((enum NPY_TYPES) 0 - (enum NPY_TYPES) 1), const_zero = (enum NPY_TYPES) 0;
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index 22984026b1..d398e21244 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -98,3 +98,58 @@ cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):
         for i in range(0, len(extended_word) - ngram_length + 1):
             ngrams.append(extended_word[i:i + ngram_length])
     return ngrams
+
+#
+# UTF-8 bytes that begin with 10 are subsequent bytes of a multi-byte sequence,
+# as opposed to a new character.
+#
+_MB_MASK = 0xC0
+_MB_START = 0x80
+
+
+cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
+    """Computes ngrams for a word.
+
+    Ported from the original FB implementation.
+
+    Parameters
+    ----------
+    word : str
+        A unicode string.
+    min_n : unsigned int
+        The minimum ngram length.
+    max_n : unsigned int
+        The maximum ngram length.
+
+    Returns:
+    --------
+    list
+        A list of ngrams, where each ngram is a list of **bytes**.
+
+    See Also
+    --------
+    `Original implementation <https://github.com/facebookresearch/fastText/blob/7842495a4d64c7a3bb4339d45d6e64321d002ed8/src/dictionary.cc#L172>`__
+
+    """
+    cdef bytes utf8_word = f'<{word}>'.encode("utf-8")
+    cdef int num_bytes = len(utf8_word)
+    cdef int j, i, n
+
+    ngrams = []
+    for i in range(num_bytes):
+        ngram = []
+
+        if utf8_word[i] & _MB_MASK == _MB_START:
+            continue
+
+        j, n = i, 1
+        while j < num_bytes and n <= max_n:
+            ngram.append(utf8_word[j])
+            j += 1
+            while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+                ngram.append(utf8_word[j])
+                j += 1
+            if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+                ngrams.append(bytes(ngram))
+            n += 1
+    return ngrams
diff --git a/gensim/models/fasttext.py b/gensim/models/fasttext.py
index a07d84fbf4..b42460dccc 100644
--- a/gensim/models/fasttext.py
+++ b/gensim/models/fasttext.py
@@ -98,7 +98,7 @@
 from gensim.models.word2vec import Word2VecVocab, Word2VecTrainables, train_sg_pair, train_cbow_pair
 from gensim.models.keyedvectors import FastTextKeyedVectors
 from gensim.models.base_any2vec import BaseWordEmbeddingsModel
-from gensim.models.utils_any2vec import ft_ngram_hashes, ft_ngram_hashes_broken
+from gensim.models.utils_any2vec import ft_ngram_hashes
 from smart_open import smart_open
 
 from gensim.utils import deprecated, call_on_class_only
@@ -554,8 +554,6 @@ def _clear_post_train(self):
         self.wv.buckets_word = None
 
     def estimate_memory(self, vocab_size=None, report=None):
-        hash_fn = ft_ngram_hashes if self.wv.compatible_hash else ft_ngram_hashes_broken
-
         vocab_size = vocab_size or len(self.wv.vocab)
         vec_size = self.vector_size * np.dtype(np.float32).itemsize
         l1_size = self.trainables.layer1_size * np.dtype(np.float32).itemsize
@@ -574,7 +572,13 @@ def estimate_memory(self, vocab_size=None, report=None):
                 buckets = set()
                 num_ngrams = 0
                 for word in self.wv.vocab:
-                    hashes = hash_fn(word, self.wv.min_n, self.wv.max_n, self.trainables.bucket)
+                    hashes = ft_ngram_hashes(
+                        word,
+                        self.wv.min_n,
+                        self.wv.max_n,
+                        self.trainables.bucket,
+                        self.wv.compatible_hash
+                    )
                     num_ngrams += len(hashes)
                     buckets.update(hashes)
                 num_buckets = len(buckets)
diff --git a/gensim/models/keyedvectors.py b/gensim/models/keyedvectors.py
index 26d6ecbf98..cbbbeaad45 100644
--- a/gensim/models/keyedvectors.py
+++ b/gensim/models/keyedvectors.py
@@ -183,7 +183,6 @@
     _save_word2vec_format,
     _load_word2vec_format,
     ft_ngram_hashes,
-    ft_ngram_hashes_broken,
 )
 from gensim.similarities.termsim import TermSimilarityIndex, SparseTermSimilarityMatrix
 
@@ -2011,8 +2010,7 @@ def __contains__(self, word):
         if word in self.vocab:
             return True
         else:
-            hash_fn = ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken
-            hashes = hash_fn(word, self.min_n, self.max_n, self.bucket)
+            hashes = ft_ngram_hashes(word, self.min_n, self.max_n, self.bucket, self.compatible_hash)
             return any(h in self.hash2index for h in hashes)
 
     def save(self, *args, **kwargs):
@@ -2055,8 +2053,6 @@ def word_vec(self, word, use_norm=False):
             If word and all ngrams not in vocabulary.
 
         """
-        hash_fn = ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken
-
         if word in self.vocab:
             return super(FastTextKeyedVectors, self).word_vec(word, use_norm)
         elif self.bucket == 0:
@@ -2068,7 +2064,7 @@ def word_vec(self, word, use_norm=False):
             else:
                 ngram_weights = self.vectors_ngrams
             ngrams_found = 0
-            for ngram_hash in hash_fn(word, self.min_n, self.max_n, self.bucket):
+            for ngram_hash in ft_ngram_hashes(word, self.min_n, self.max_n, self.bucket, self.compatible_hash):
                 if ngram_hash in self.hash2index:
                     word_vec += ngram_weights[self.hash2index[ngram_hash]]
                     ngrams_found += 1
@@ -2126,7 +2122,7 @@ def init_ngrams_weights(self, seed):
             self.min_n,
             self.max_n,
             self.bucket,
-            ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken,
+            self.compatible_hash,
             self.hash2index
         )
         self.num_ngram_vectors = len(ngram_indices)
@@ -2149,7 +2145,7 @@ def update_ngrams_weights(self, seed, old_vocab_len):
             self.min_n,
             self.max_n,
             self.bucket,
-            ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken,
+            self.compatible_hash,
             self.hash2index
         )
         num_new_ngrams = len(new_ngram_hashes)
@@ -2211,7 +2207,7 @@ def init_post_load(self, vectors, match_gensim=False):
                 self.min_n,
                 self.max_n,
                 self.bucket,
-                ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken,
+                self.compatible_hash,
                 dict(),  # we don't care what goes here in this case
             )
             ngram_hashes = sorted(set(ngram_hashes))
@@ -2233,18 +2229,16 @@ def adjust_vectors(self):
         if self.bucket == 0:
             return
 
-        hash_fn = ft_ngram_hashes if self.compatible_hash else ft_ngram_hashes_broken
-
         for w, v in self.vocab.items():
             word_vec = np.copy(self.vectors_vocab[v.index])
-            ngram_hashes = hash_fn(w, self.min_n, self.max_n, self.bucket)
+            ngram_hashes = ft_ngram_hashes(w, self.min_n, self.max_n, self.bucket, self.compatible_hash)
             for nh in ngram_hashes:
                 word_vec += self.vectors_ngrams[self.hash2index[nh]]
             word_vec /= len(ngram_hashes) + 1
             self.vectors[v.index] = word_vec
 
 
-def _process_fasttext_vocab(iterable, min_n, max_n, num_buckets, hash_fn, hash2index):
+def _process_fasttext_vocab(iterable, min_n, max_n, num_buckets, compatible_hash, hash2index):
     """
     Performs a common operation for FastText weight initialization and
     updates: scan the vocabulary, calculate ngrams and their hashes, keep
@@ -2261,8 +2255,9 @@ def _process_fasttext_vocab(iterable, min_n, max_n, num_buckets, hash_fn, hash2i
         The maximum length of ngrams.
     num_buckets : int
         The number of buckets used by the model.
-    hash_fn : callable
-        Used to hash ngrams to buckets.
+    compatible_hash : boolean
+        True for compatibility with the Facebook implementation.
+        False for compatibility with the old Gensim implementation.
     hash2index : dict
         Updated in-place.
 
@@ -2288,7 +2283,7 @@ def _process_fasttext_vocab(iterable, min_n, max_n, num_buckets, hash_fn, hash2i
 
     for word, vocab in iterable:
         wi = []
-        for ngram_hash in hash_fn(word, min_n, max_n, num_buckets):
+        for ngram_hash in ft_ngram_hashes(word, min_n, max_n, num_buckets, compatible_hash):
             if ngram_hash not in hash2index:
                 #
                 # This is a new ngram.  Reserve a new index in hash2index.
diff --git a/gensim/models/utils_any2vec.py b/gensim/models/utils_any2vec.py
index 7b6e9a499a..9083fa8064 100644
--- a/gensim/models/utils_any2vec.py
+++ b/gensim/models/utils_any2vec.py
@@ -10,13 +10,18 @@
 extensions for FastText.  If they are not available, then the module substitutes
 slower Python versions in their place.
 
-Another related set of FastText functionality is computing ngrams for a word,
-and then hashing them.  The :py:func:`ft_ngram_hashes` and
-:py:func:`ft_ngram_hashes_broken` achieves this goal.
+Another related set of FastText functionality is computing ngrams for a word.
+The :py:func:`compute_ngrams` and :py:func:`compute_ngrams_bytes` hashes achieve that.
 
-Finally, the module also exposes "working" and "broken" hash functions for
-FastText.  It does this without abstracting them away, because the correct
-function to use depends on the current model.
+Closely related is the functionality for hashing ngrams, implemented by the
+:py:func:`ft_hash` and :py:func:`ft_hash_broken` functions.
+The module exposes "working" and "broken" hash functions in order to maintain
+backwards compatibility with older versions of Gensim.
+
+For compatibility with older Gensim, use :py:func:`compute_ngrams` and
+:py:func:`ft_hash_broken` to has each ngram.  For compatibility with the
+current Facebook implementation, use :py:func:`compute_ngrams_bytes` and
+:py:func:`ft_hash_bytes`.
 
 """
 
@@ -32,6 +37,14 @@
 logger = logging.getLogger(__name__)
 
 
+#
+# UTF-8 bytes that begin with 10 are subsequent bytes of a multi-byte sequence,
+# as opposed to a new character.
+#
+_MB_MASK = 0xC0
+_MB_START = 0x80
+
+
 def _byte_to_int_py3(b):
     return b
 
@@ -47,7 +60,7 @@ def _byte_to_int_py2(b):
 # Define this here so we can unittest this function directly.
 # Only use this function if the faster C version fails to import.
 #
-def _ft_hash_py_bytes(bytez):
+def _ft_hash_bytes_py(bytez):
     """Calculate hash based on `bytez`.
     Reproduce `hash method from Facebook fastText implementation
     <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.
@@ -72,7 +85,7 @@ def _ft_hash_py_bytes(bytez):
     return h
 
 
-def _ft_hash_py_broken(string):
+def _ft_hash_broken_py(string):
     """Calculate hash based on `string`.
     Reproduce `hash method from Facebook fastText implementation
     <https://github.com/facebookresearch/fastText/blob/master/src/dictionary.cc>`_.
@@ -100,62 +113,109 @@ def _ft_hash_py_broken(string):
     return h
 
 
-try:
-    from gensim.models._utils_any2vec import (
-        compute_ngrams,
-        ft_hash_broken as _ft_hash_cy_broken,
-        ft_hash_bytes as _ft_hash_cy_bytes,
-    )
-    _ft_hash_bytes = _ft_hash_cy_bytes
-    _ft_hash_broken = _ft_hash_cy_broken
-    FAST_VERSION = 0
-except ImportError:
-    # failed... fall back to plain python
-    FAST_VERSION = -1
-    _ft_hash_bytes = _ft_hash_py_bytes
-    _ft_hash_broken = _ft_hash_py_broken
+def _compute_ngrams_py(word, min_n, max_n):
+    """Get the list of all possible ngrams for a given word.
+    Parameters
+    ----------
+    word : str
+        The word whose ngrams need to be computed.
+    min_n : int
+        Minimum character length of the ngrams.
+    max_n : int
+        Maximum character length of the ngrams.
+    Returns
+    -------
+    list of str
+        Sequence of character ngrams.
+    """
+    BOW, EOW = ('<', '>')  # Used by FastText to attach to all words as prefix and suffix
+    extended_word = BOW + word + EOW
+    ngrams = []
+    for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
+        for i in range(0, len(extended_word) - ngram_length + 1):
+            ngrams.append(extended_word[i:i + ngram_length])
+    return ngrams
 
 
-def ft_ngram_hashes(word, minn, maxn, num_buckets):
-    """Calculate the ngrams of the word and hash them.
+def _compute_ngrams_bytes_py(word, min_n, max_n):
+    """Computes ngrams for a word.
 
-    Do this in a way that is compatible with the original Facebook implementation.
+    Ported from the original FB implementation.
 
     Parameters
     ----------
     word : str
-        The word to calculate ngram hashes for.
-    minn : int
-        Minimum ngram length
-    maxn : int
-        Maximum ngram length
-    num_buckets : int
-        The number of buckets
+        A unicode string.
+    min_n : unsigned int
+        The minimum ngram length.
+    max_n : unsigned int
+        The maximum ngram length.
 
-    Returns
-    -------
-        A list of hashes (integers), one per each detected ngram.
+    Returns:
+    --------
+    list of str
+        A list of ngrams, where each ngram is a list of **bytes**.
+
+    See Also
+    --------
+    `Original implementation <https://github.com/facebookresearch/fastText/blob/7842495a4d64c7a3bb4339d45d6e64321d002ed8/src/dictionary.cc#L172>`__  # noqa: E501
 
     """
-    ngrams = compute_ngrams(word, minn, maxn)
-    #
-    # This is a trick to avoid encoding each ngram separately, which is
-    # computationally expensive.  It works for two reasons:
-    #
-    # 1) ngrams are guaranteed to _not_ have any spaces, because that is the
-    # character we use to split sentences into words.
-    # 2) space is an ASCII character, so it survives UTF-8 encoding unchanged.
-    #
-    encoded_ngrams = (" ".join(ngrams)).encode("utf-8").split()
-    hashes = [_ft_hash_bytes(en) % num_buckets for en in encoded_ngrams]
-    return hashes
+    utf8_word = f'<{word}>'.encode("utf-8")
+    num_bytes = len(utf8_word)
+    n = 0
+
+    ngrams = []
+    for i in range(num_bytes):
+        ngram = []
+
+        if utf8_word[i] & _MB_MASK == _MB_START:
+            continue
+
+        j, n = i, 1
+        while j < num_bytes and n <= max_n:
+            ngram.append(utf8_word[j])
+            j += 1
+            while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+                ngram.append(utf8_word[j])
+                j += 1
+            if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+                ngrams.append(bytes(ngram))
+            n += 1
+    return ngrams
 
 
-def ft_ngram_hashes_broken(word, minn, maxn, num_buckets):
-    """Calculate the ngrams of the word and hash them.
+#
+# Internally, we use the following convention to abstract away the presence
+# or absence of the Cython extensions:
+#
+# - _function_cy: Imported from Cython extension
+# - _function_py: Implemented in Python
+# - function: Exported by this module.
+#
+try:
+    from gensim.models._utils_any2vec import (
+        compute_ngrams as _compute_ngrams_cy,
+        compute_ngrams_bytes as _compute_ngrams_bytes_cy,
+        ft_hash_broken as _ft_hash_broken_cy,
+        ft_hash_bytes as _ft_hash_bytes_cy,
+    )
+    ft_hash_bytes = _ft_hash_bytes_cy
+    ft_hash_broken = _ft_hash_broken_cy
+    compute_ngrams = _compute_ngrams_cy
+    compute_ngrams_bytes = _compute_ngrams_bytes_cy
+    FAST_VERSION = 0
+except ImportError:
+    # failed... fall back to plain python
+    FAST_VERSION = -1
+    ft_hash_bytes = _ft_hash_bytes_py
+    ft_hash_broken = _ft_hash_broken_py
+    compute_ngrams = _compute_ngrams_py
+    compute_ngrams_bytes = _compute_ngrams_bytes_py
 
-    Do this in a way that is incompatible with the original Facebook
-    implementation, but compatible with older versions of Gensim.
+
+def ft_ngram_hashes(word, minn, maxn, num_buckets, fb_compatible=True):
+    """Calculate the ngrams of the word and hash them.
 
     Parameters
     ----------
@@ -167,14 +227,21 @@ def ft_ngram_hashes_broken(word, minn, maxn, num_buckets):
         Maximum ngram length
     num_buckets : int
         The number of buckets
+    fb_compatible : boolean, optional
+        True for compatibility with the Facebook implementation.
+        False for compatibility with the old Gensim implementation.
 
     Returns
     -------
         A list of hashes (integers), one per each detected ngram.
 
     """
-    ngrams = compute_ngrams(word, minn, maxn)
-    hashes = [_ft_hash_broken(n) % num_buckets for n in ngrams]
+    if fb_compatible:
+        encoded_ngrams = compute_ngrams_bytes(word, minn, maxn)
+        hashes = [ft_hash_bytes(n) % num_buckets for n in encoded_ngrams]
+    else:
+        text_ngrams = compute_ngrams(word, minn, maxn)
+        hashes = [ft_hash_broken(n) % num_buckets for n in text_ngrams]
     return hashes
 
 

From 2ea46721f6d3d8e5871f4b35141686554fe2056c Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 21:52:33 +1100
Subject: [PATCH 10/32] review response: add comment to explain hack

---
 gensim/models/_utils_any2vec.c   | 318 +++++++++++++++----------------
 gensim/models/_utils_any2vec.pyx |   5 +-
 2 files changed, 163 insertions(+), 160 deletions(-)

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index 04a0d2c2af..e66d4bd506 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -1852,7 +1852,7 @@ static PyObject *__pyx_tuple__10;
 static PyObject *__pyx_codeobj__11;
 /* Late includes */
 
-/* "gensim/models/_utils_any2vec.pyx":19
+/* "gensim/models/_utils_any2vec.pyx":22
  * 
  * 
  * cdef _byte_to_int_py3(b):             # <<<<<<<<<<<<<<
@@ -1865,7 +1865,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObj
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("_byte_to_int_py3", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":20
+  /* "gensim/models/_utils_any2vec.pyx":23
  * 
  * cdef _byte_to_int_py3(b):
  *     return b             # <<<<<<<<<<<<<<
@@ -1877,7 +1877,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObj
   __pyx_r = __pyx_v_b;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":19
+  /* "gensim/models/_utils_any2vec.pyx":22
  * 
  * 
  * cdef _byte_to_int_py3(b):             # <<<<<<<<<<<<<<
@@ -1892,7 +1892,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObj
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":22
+/* "gensim/models/_utils_any2vec.pyx":25
  *     return b
  * 
  * cdef _byte_to_int_py2(b):             # <<<<<<<<<<<<<<
@@ -1907,7 +1907,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
   PyObject *__pyx_t_2 = NULL;
   __Pyx_RefNannySetupContext("_byte_to_int_py2", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":23
+  /* "gensim/models/_utils_any2vec.pyx":26
  * 
  * cdef _byte_to_int_py2(b):
  *     return ord(b)             # <<<<<<<<<<<<<<
@@ -1915,14 +1915,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
  * _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_PyObject_Ord(__pyx_v_b); if (unlikely(__pyx_t_1 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 23, __pyx_L1_error)
-  __pyx_t_2 = __Pyx_PyInt_From_long(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 23, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Ord(__pyx_v_b); if (unlikely(__pyx_t_1 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 26, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_From_long(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 26, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_r = __pyx_t_2;
   __pyx_t_2 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":22
+  /* "gensim/models/_utils_any2vec.pyx":25
  *     return b
  * 
  * cdef _byte_to_int_py2(b):             # <<<<<<<<<<<<<<
@@ -1941,7 +1941,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObj
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":28
+/* "gensim/models/_utils_any2vec.pyx":31
  * 
  * 
  * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
@@ -1963,7 +1963,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
   PyObject *__pyx_t_6 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":44
+  /* "gensim/models/_utils_any2vec.pyx":47
  * 
  *     """
  *     cdef uint32_t h = 2166136261             # <<<<<<<<<<<<<<
@@ -1972,7 +1972,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":47
+  /* "gensim/models/_utils_any2vec.pyx":50
  *     cdef char b
  * 
  *     for b in bytez:             # <<<<<<<<<<<<<<
@@ -1981,7 +1981,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
  */
   if (unlikely(__pyx_v_bytez == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(0, 47, __pyx_L1_error)
+    __PYX_ERR(0, 50, __pyx_L1_error)
   }
   __Pyx_INCREF(__pyx_v_bytez);
   __pyx_t_1 = __pyx_v_bytez;
@@ -1991,7 +1991,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
     __pyx_t_2 = __pyx_t_5;
     __pyx_v_b = (__pyx_t_2[0]);
 
-    /* "gensim/models/_utils_any2vec.pyx":48
+    /* "gensim/models/_utils_any2vec.pyx":51
  * 
  *     for b in bytez:
  *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss             # <<<<<<<<<<<<<<
@@ -2000,7 +2000,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
  */
     __pyx_v_h = (__pyx_v_h ^ ((uint32_t)((int8_t)__pyx_v_b)));
 
-    /* "gensim/models/_utils_any2vec.pyx":49
+    /* "gensim/models/_utils_any2vec.pyx":52
  *     for b in bytez:
  *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
  *         h = h * 16777619             # <<<<<<<<<<<<<<
@@ -2011,7 +2011,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":50
+  /* "gensim/models/_utils_any2vec.pyx":53
  *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
  *         h = h * 16777619
  *     return h             # <<<<<<<<<<<<<<
@@ -2019,13 +2019,13 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_6 = __Pyx_PyInt_From_uint32_t(__pyx_v_h); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 50, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_From_uint32_t(__pyx_v_h); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 53, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __pyx_r = __pyx_t_6;
   __pyx_t_6 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":28
+  /* "gensim/models/_utils_any2vec.pyx":31
  * 
  * 
  * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
@@ -2052,7 +2052,7 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes(PyObje
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash_bytes (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_bytez), (&PyBytes_Type), 1, "bytez", 1))) __PYX_ERR(0, 28, __pyx_L1_error)
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_bytez), (&PyBytes_Type), 1, "bytez", 1))) __PYX_ERR(0, 31, __pyx_L1_error)
   __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_self, ((PyObject*)__pyx_v_bytez));
 
   /* function exit code */
@@ -2070,7 +2070,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_v_bytez, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 28, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_v_bytez, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 31, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2087,7 +2087,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":53
+/* "gensim/models/_utils_any2vec.pyx":56
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2112,7 +2112,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   long __pyx_t_9;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":70
+  /* "gensim/models/_utils_any2vec.pyx":73
  * 
  *     """
  *     cdef unsigned int h = 2166136261             # <<<<<<<<<<<<<<
@@ -2121,7 +2121,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":71
+  /* "gensim/models/_utils_any2vec.pyx":74
  *     """
  *     cdef unsigned int h = 2166136261
  *     for c in string:             # <<<<<<<<<<<<<<
@@ -2130,29 +2130,29 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   if (unlikely(__pyx_v_string == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(0, 71, __pyx_L1_error)
+    __PYX_ERR(0, 74, __pyx_L1_error)
   }
   __Pyx_INCREF(__pyx_v_string);
   __pyx_t_1 = __pyx_v_string;
-  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 71, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 74, __pyx_L1_error)
   for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_3; __pyx_t_7++) {
     __pyx_t_2 = __pyx_t_7;
-    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 71, __pyx_L1_error)
+    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 74, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_XDECREF_SET(__pyx_v_c, __pyx_t_8);
     __pyx_t_8 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":72
+    /* "gensim/models/_utils_any2vec.pyx":75
  *     cdef unsigned int h = 2166136261
  *     for c in string:
  *         h ^= ord(c)             # <<<<<<<<<<<<<<
  *         h *= 16777619
  *     return h
  */
-    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 72, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 75, __pyx_L1_error)
     __pyx_v_h = (__pyx_v_h ^ __pyx_t_9);
 
-    /* "gensim/models/_utils_any2vec.pyx":73
+    /* "gensim/models/_utils_any2vec.pyx":76
  *     for c in string:
  *         h ^= ord(c)
  *         h *= 16777619             # <<<<<<<<<<<<<<
@@ -2163,7 +2163,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":74
+  /* "gensim/models/_utils_any2vec.pyx":77
  *         h ^= ord(c)
  *         h *= 16777619
  *     return h             # <<<<<<<<<<<<<<
@@ -2171,13 +2171,13 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 74, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 77, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_8);
   __pyx_r = __pyx_t_8;
   __pyx_t_8 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":53
+  /* "gensim/models/_utils_any2vec.pyx":56
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2205,7 +2205,7 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObj
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash_broken (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 53, __pyx_L1_error)
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 56, __pyx_L1_error)
   __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(__pyx_self, ((PyObject*)__pyx_v_string));
 
   /* function exit code */
@@ -2223,7 +2223,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHO
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 53, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2240,7 +2240,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHO
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":77
+/* "gensim/models/_utils_any2vec.pyx":80
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2272,14 +2272,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":95
+  /* "gensim/models/_utils_any2vec.pyx":98
  * 
  *     """
  *     cdef unicode extended_word = f'<{word}>'             # <<<<<<<<<<<<<<
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  */
-  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
+  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = 0;
   __pyx_t_3 = 127;
@@ -2287,7 +2287,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u_);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_kp_u_);
-  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_3 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) > __pyx_t_3) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) : __pyx_t_3;
   __pyx_t_2 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_4);
@@ -2298,43 +2298,43 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u__2);
   PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_kp_u__2);
-  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 95, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_extended_word = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":96
+  /* "gensim/models/_utils_any2vec.pyx":99
  *     """
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []             # <<<<<<<<<<<<<<
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  */
-  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 99, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_v_ngrams = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":97
+  /* "gensim/models/_utils_any2vec.pyx":100
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  */
-  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_5 = __pyx_v_max_n;
-  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 100, __pyx_L1_error)
   if (((__pyx_t_5 < __pyx_t_2) != 0)) {
     __pyx_t_6 = __pyx_t_5;
   } else {
     __pyx_t_6 = __pyx_t_2;
   }
-  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_GIVEREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_4);
@@ -2342,16 +2342,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_1);
   __pyx_t_4 = 0;
   __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
     __pyx_t_7 = __pyx_t_1; __Pyx_INCREF(__pyx_t_7); __pyx_t_6 = 0;
     __pyx_t_8 = NULL;
   } else {
-    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 97, __pyx_L1_error)
+    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 100, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 97, __pyx_L1_error)
+    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 100, __pyx_L1_error)
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   for (;;) {
@@ -2359,17 +2359,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (likely(PyList_CheckExact(__pyx_t_7))) {
         if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 97, __pyx_L1_error)
+        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       } else {
         if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 97, __pyx_L1_error)
+        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       }
@@ -2379,7 +2379,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         PyObject* exc_type = PyErr_Occurred();
         if (exc_type) {
           if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(0, 97, __pyx_L1_error)
+          else __PYX_ERR(0, 100, __pyx_L1_error)
         }
         break;
       }
@@ -2388,23 +2388,23 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_XDECREF_SET(__pyx_v_ngram_length, __pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":98
+    /* "gensim/models/_utils_any2vec.pyx":101
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams
  */
-    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 98, __pyx_L1_error)
-    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 101, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 101, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_int_0);
     __Pyx_GIVEREF(__pyx_int_0);
@@ -2412,16 +2412,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_GIVEREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
       __pyx_t_4 = __pyx_t_1; __Pyx_INCREF(__pyx_t_4); __pyx_t_2 = 0;
       __pyx_t_9 = NULL;
     } else {
-      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
+      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 101, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 98, __pyx_L1_error)
+      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 101, __pyx_L1_error)
     }
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     for (;;) {
@@ -2429,17 +2429,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         if (likely(PyList_CheckExact(__pyx_t_4))) {
           if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 98, __pyx_L1_error)
+          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         } else {
           if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 98, __pyx_L1_error)
+          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         }
@@ -2449,7 +2449,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
           PyObject* exc_type = PyErr_Occurred();
           if (exc_type) {
             if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-            else __PYX_ERR(0, 98, __pyx_L1_error)
+            else __PYX_ERR(0, 101, __pyx_L1_error)
           }
           break;
         }
@@ -2458,7 +2458,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_1);
       __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":99
+      /* "gensim/models/_utils_any2vec.pyx":102
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])             # <<<<<<<<<<<<<<
@@ -2471,26 +2471,26 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (__pyx_t_11) {
         __pyx_t_10 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 99, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 102, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 99, __pyx_L1_error)
+      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_11 = (__pyx_t_1 == Py_None);
       if (__pyx_t_11) {
         __pyx_t_12 = PY_SSIZE_T_MAX;
       } else {
-        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 99, __pyx_L1_error)
+        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 102, __pyx_L1_error)
         __pyx_t_12 = __pyx_t_13;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 99, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 99, __pyx_L1_error)
+      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 102, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":98
+      /* "gensim/models/_utils_any2vec.pyx":101
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
@@ -2500,7 +2500,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     }
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":97
+    /* "gensim/models/_utils_any2vec.pyx":100
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
@@ -2510,7 +2510,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   }
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":100
+  /* "gensim/models/_utils_any2vec.pyx":103
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams             # <<<<<<<<<<<<<<
@@ -2522,7 +2522,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_r = __pyx_v_ngrams;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":77
+  /* "gensim/models/_utils_any2vec.pyx":80
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2582,17 +2582,17 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObj
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 77, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 80, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 77, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 80, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 77, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 80, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -2602,12 +2602,12 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObj
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
     }
     __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 77, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 77, __pyx_L3_error)
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 80, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 80, __pyx_L3_error)
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 77, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 80, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2626,7 +2626,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHO
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 77, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 80, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2643,7 +2643,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHO
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":110
+/* "gensim/models/_utils_any2vec.pyx":113
  * 
  * 
  * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2678,14 +2678,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":134
+  /* "gensim/models/_utils_any2vec.pyx":137
  * 
  *     """
  *     cdef bytes utf8_word = f'<{word}>'.encode("utf-8")             # <<<<<<<<<<<<<<
  *     cdef int num_bytes = len(utf8_word)
  *     cdef int j, i, n
  */
-  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
+  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 137, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = 0;
   __pyx_t_3 = 127;
@@ -2693,7 +2693,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u_);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_kp_u_);
-  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 137, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_3 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) > __pyx_t_3) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) : __pyx_t_3;
   __pyx_t_2 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_4);
@@ -2704,16 +2704,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u__2);
   PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_kp_u__2);
-  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 137, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyUnicode_AsUTF8String(((PyObject*)__pyx_t_4)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
+  __pyx_t_1 = PyUnicode_AsUTF8String(((PyObject*)__pyx_t_4)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 137, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __pyx_v_utf8_word = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":135
+  /* "gensim/models/_utils_any2vec.pyx":138
  *     """
  *     cdef bytes utf8_word = f'<{word}>'.encode("utf-8")
  *     cdef int num_bytes = len(utf8_word)             # <<<<<<<<<<<<<<
@@ -2722,24 +2722,24 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
   if (unlikely(__pyx_v_utf8_word == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
-    __PYX_ERR(0, 135, __pyx_L1_error)
+    __PYX_ERR(0, 138, __pyx_L1_error)
   }
-  __pyx_t_2 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 135, __pyx_L1_error)
+  __pyx_t_2 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 138, __pyx_L1_error)
   __pyx_v_num_bytes = __pyx_t_2;
 
-  /* "gensim/models/_utils_any2vec.pyx":138
+  /* "gensim/models/_utils_any2vec.pyx":141
  *     cdef int j, i, n
  * 
  *     ngrams = []             # <<<<<<<<<<<<<<
  *     for i in range(num_bytes):
  *         ngram = []
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 138, __pyx_L1_error)
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 141, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_ngrams = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":139
+  /* "gensim/models/_utils_any2vec.pyx":142
  * 
  *     ngrams = []
  *     for i in range(num_bytes):             # <<<<<<<<<<<<<<
@@ -2751,43 +2751,43 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
     __pyx_v_i = __pyx_t_7;
 
-    /* "gensim/models/_utils_any2vec.pyx":140
+    /* "gensim/models/_utils_any2vec.pyx":143
  *     ngrams = []
  *     for i in range(num_bytes):
  *         ngram = []             # <<<<<<<<<<<<<<
  * 
  *         if utf8_word[i] & _MB_MASK == _MB_START:
  */
-    __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 143, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_1));
     __pyx_t_1 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":142
+    /* "gensim/models/_utils_any2vec.pyx":145
  *         ngram = []
  * 
  *         if utf8_word[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
  *             continue
  * 
  */
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_i, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_i, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_9) {
 
-      /* "gensim/models/_utils_any2vec.pyx":143
+      /* "gensim/models/_utils_any2vec.pyx":146
  * 
  *         if utf8_word[i] & _MB_MASK == _MB_START:
  *             continue             # <<<<<<<<<<<<<<
@@ -2796,7 +2796,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
       goto __pyx_L3_continue;
 
-      /* "gensim/models/_utils_any2vec.pyx":142
+      /* "gensim/models/_utils_any2vec.pyx":145
  *         ngram = []
  * 
  *         if utf8_word[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
@@ -2805,7 +2805,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
     }
 
-    /* "gensim/models/_utils_any2vec.pyx":145
+    /* "gensim/models/_utils_any2vec.pyx":148
  *             continue
  * 
  *         j, n = i, 1             # <<<<<<<<<<<<<<
@@ -2817,7 +2817,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
     __pyx_v_j = __pyx_t_10;
     __pyx_v_n = __pyx_t_11;
 
-    /* "gensim/models/_utils_any2vec.pyx":146
+    /* "gensim/models/_utils_any2vec.pyx":149
  * 
  *         j, n = i, 1
  *         while j < num_bytes and n <= max_n:             # <<<<<<<<<<<<<<
@@ -2836,19 +2836,19 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
       __pyx_L8_bool_binop_done:;
       if (!__pyx_t_9) break;
 
-      /* "gensim/models/_utils_any2vec.pyx":147
+      /* "gensim/models/_utils_any2vec.pyx":150
  *         j, n = i, 1
  *         while j < num_bytes and n <= max_n:
  *             ngram.append(utf8_word[j])             # <<<<<<<<<<<<<<
  *             j += 1
  *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
  */
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 147, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 150, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngram, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 147, __pyx_L1_error)
+      __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngram, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 150, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":148
+      /* "gensim/models/_utils_any2vec.pyx":151
  *         while j < num_bytes and n <= max_n:
  *             ngram.append(utf8_word[j])
  *             j += 1             # <<<<<<<<<<<<<<
@@ -2857,7 +2857,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
       __pyx_v_j = (__pyx_v_j + 1);
 
-      /* "gensim/models/_utils_any2vec.pyx":149
+      /* "gensim/models/_utils_any2vec.pyx":152
  *             ngram.append(utf8_word[j])
  *             j += 1
  *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:             # <<<<<<<<<<<<<<
@@ -2871,38 +2871,38 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
           __pyx_t_9 = __pyx_t_12;
           goto __pyx_L12_bool_binop_done;
         }
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 152, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
-        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 152, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 152, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_8);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 152, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 152, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_12 < 0)) __PYX_ERR(0, 149, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_12 < 0)) __PYX_ERR(0, 152, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __pyx_t_9 = __pyx_t_12;
         __pyx_L12_bool_binop_done:;
         if (!__pyx_t_9) break;
 
-        /* "gensim/models/_utils_any2vec.pyx":150
+        /* "gensim/models/_utils_any2vec.pyx":153
  *             j += 1
  *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
  *                 ngram.append(utf8_word[j])             # <<<<<<<<<<<<<<
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  */
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 150, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 153, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngram, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 150, __pyx_L1_error)
+        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngram, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 153, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-        /* "gensim/models/_utils_any2vec.pyx":151
+        /* "gensim/models/_utils_any2vec.pyx":154
  *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
  *                 ngram.append(utf8_word[j])
  *                 j += 1             # <<<<<<<<<<<<<<
@@ -2912,7 +2912,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
         __pyx_v_j = (__pyx_v_j + 1);
       }
 
-      /* "gensim/models/_utils_any2vec.pyx":152
+      /* "gensim/models/_utils_any2vec.pyx":155
  *                 ngram.append(utf8_word[j])
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
@@ -2945,19 +2945,19 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
       __pyx_L15_bool_binop_done:;
       if (__pyx_t_9) {
 
-        /* "gensim/models/_utils_any2vec.pyx":153
+        /* "gensim/models/_utils_any2vec.pyx":156
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  *                 ngrams.append(bytes(ngram))             # <<<<<<<<<<<<<<
  *             n += 1
  *     return ngrams
  */
-        __pyx_t_1 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 153, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 156, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 153, __pyx_L1_error)
+        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 156, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-        /* "gensim/models/_utils_any2vec.pyx":152
+        /* "gensim/models/_utils_any2vec.pyx":155
  *                 ngram.append(utf8_word[j])
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
@@ -2966,7 +2966,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
       }
 
-      /* "gensim/models/_utils_any2vec.pyx":154
+      /* "gensim/models/_utils_any2vec.pyx":157
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  *                 ngrams.append(bytes(ngram))
  *             n += 1             # <<<<<<<<<<<<<<
@@ -2977,7 +2977,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
     __pyx_L3_continue:;
   }
 
-  /* "gensim/models/_utils_any2vec.pyx":155
+  /* "gensim/models/_utils_any2vec.pyx":158
  *                 ngrams.append(bytes(ngram))
  *             n += 1
  *     return ngrams             # <<<<<<<<<<<<<<
@@ -2987,7 +2987,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   __pyx_r = __pyx_v_ngrams;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":110
+  /* "gensim/models/_utils_any2vec.pyx":113
  * 
  * 
  * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -3013,7 +3013,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
 
 /* Python wrapper */
 static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes[] = "compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n)\nComputes ngrams for a word.\n\n    Ported from the original FB implementation.\n\n    Parameters\n    ----------\n    word : str\n        A unicode string.\n    min_n : unsigned int\n        The minimum ngram length.\n    max_n : unsigned int\n        The maximum ngram length.\n\n    Returns:\n    --------\n    list\n        A list of ngrams, where each ngram is a list of **bytes**.\n\n    See Also\n    --------\n    `Original implementation <https://github.com/facebookresearch/fastText/blob/7842495a4d64c7a3bb4339d45d6e64321d002ed8/src/dictionary.cc#L172>`__\n\n    ";
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes[] = "compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n)\nComputes ngrams for a word.\n\n    Ported from the original FB implementation.\n\n    Parameters\n    ----------\n    word : str\n        A unicode string.\n    min_n : unsigned int\n        The minimum ngram length.\n    max_n : unsigned int\n        The maximum ngram length.\n\n    Returns:\n    --------\n    list of str\n        A list of ngrams, where each ngram is a list of **bytes**.\n\n    See Also\n    --------\n    `Original implementation <https://github.com/facebookresearch/fastText/blob/7842495a4d64c7a3bb4339d45d6e64321d002ed8/src/dictionary.cc#L172>`__\n\n    ";
 static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_word = 0;
   unsigned int __pyx_v_min_n;
@@ -3046,17 +3046,17 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 1); __PYX_ERR(0, 110, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 1); __PYX_ERR(0, 113, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 2); __PYX_ERR(0, 110, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 2); __PYX_ERR(0, 113, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes") < 0)) __PYX_ERR(0, 110, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes") < 0)) __PYX_ERR(0, 113, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -3066,12 +3066,12 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
     }
     __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 110, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 110, __pyx_L3_error)
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L3_error)
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 110, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 113, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -3090,7 +3090,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -5830,7 +5830,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 100, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 272, __pyx_L1_error)
   __pyx_builtin_RuntimeError = __Pyx_GetBuiltinName(__pyx_n_s_RuntimeError); if (!__pyx_builtin_RuntimeError) __PYX_ERR(1, 856, __pyx_L1_error)
   __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(1, 1038, __pyx_L1_error)
@@ -6251,81 +6251,81 @@ if (!__Pyx_RefNanny) {
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "gensim/models/_utils_any2vec.pyx":14
+  /* "gensim/models/_utils_any2vec.pyx":17
  *     ctypedef signed char int8_t
  * 
  * from six import PY2             # <<<<<<<<<<<<<<
  * import numpy as np
  * cimport numpy as np
  */
-  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 14, __pyx_L1_error)
+  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 17, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_n_s_PY2);
   __Pyx_GIVEREF(__pyx_n_s_PY2);
   PyList_SET_ITEM(__pyx_t_1, 0, __pyx_n_s_PY2);
-  __pyx_t_2 = __Pyx_Import(__pyx_n_s_six, __pyx_t_1, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 14, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_Import(__pyx_n_s_six, __pyx_t_1, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 17, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_2, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 14, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_2, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 17, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_PY2, __pyx_t_1) < 0) __PYX_ERR(0, 14, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_PY2, __pyx_t_1) < 0) __PYX_ERR(0, 17, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":15
+  /* "gensim/models/_utils_any2vec.pyx":18
  * 
  * from six import PY2
  * import numpy as np             # <<<<<<<<<<<<<<
  * cimport numpy as np
  * 
  */
-  __pyx_t_2 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 15, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 18, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_2) < 0) __PYX_ERR(0, 15, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_2) < 0) __PYX_ERR(0, 18, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":25
+  /* "gensim/models/_utils_any2vec.pyx":28
  *     return ord(b)
  * 
  * _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
+  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 28, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) __PYX_ERR(0, 25, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) __PYX_ERR(0, 28, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_3) {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 28, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_2 = __pyx_t_1;
     __pyx_t_1 = 0;
   } else {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 25, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 28, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_2 = __pyx_t_1;
     __pyx_t_1 = 0;
   }
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_byte_to_int, __pyx_t_2) < 0) __PYX_ERR(0, 25, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_byte_to_int, __pyx_t_2) < 0) __PYX_ERR(0, 28, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":106
+  /* "gensim/models/_utils_any2vec.pyx":109
  * # as opposed to a new character.
  * #
  * _MB_MASK = 0xC0             # <<<<<<<<<<<<<<
  * _MB_START = 0x80
  * 
  */
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_MASK, __pyx_int_192) < 0) __PYX_ERR(0, 106, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_MASK, __pyx_int_192) < 0) __PYX_ERR(0, 109, __pyx_L1_error)
 
-  /* "gensim/models/_utils_any2vec.pyx":107
+  /* "gensim/models/_utils_any2vec.pyx":110
  * #
  * _MB_MASK = 0xC0
  * _MB_START = 0x80             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_START, __pyx_int_128) < 0) __PYX_ERR(0, 107, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_START, __pyx_int_128) < 0) __PYX_ERR(0, 110, __pyx_L1_error)
 
   /* "gensim/models/_utils_any2vec.pyx":1
  * #!/usr/bin/env cython             # <<<<<<<<<<<<<<
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index d398e21244..187b1905bd 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -7,6 +7,9 @@
 
 """General functions used for any2vec models."""
 
+#
+# This is here to support older versions of the MSVC compiler that don't have stdint.h.
+#
 cdef extern from "stdint_wrapper.h":
     ctypedef unsigned int uint32_t
     ctypedef signed char int8_t
@@ -123,7 +126,7 @@ cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
 
     Returns:
     --------
-    list
+    list of str
         A list of ngrams, where each ngram is a list of **bytes**.
 
     See Also

From 9137a27b67ac726fc32800beaa3414619e53452c Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 21:53:46 +1100
Subject: [PATCH 11/32] review response: improve logging message

---
 gensim/models/fasttext.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gensim/models/fasttext.py b/gensim/models/fasttext.py
index b42460dccc..34ddbdb428 100644
--- a/gensim/models/fasttext.py
+++ b/gensim/models/fasttext.py
@@ -712,7 +712,8 @@ def train(self, sentences=None, corpus_file=None, total_examples=None, total_wor
         if cant_train:
             raise ValueError(
                 'this model cannot be trained any further, '
-                'if this is a native model, try loading it with full_model=True'
+                'if this is a native model, try loading it with '
+                'with FastText.load_fasttext_format(path, full_model=True)'
             )
 
         super(FastText, self).train(

From a654c3ca99d7a132fb7e3b925c97d5e594d95d06 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 21:56:59 +1100
Subject: [PATCH 12/32] review response: fix hash_main function

---
 gensim/test/test_utils.py | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index 0be21b94ca..27fde0e20d 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -269,14 +269,13 @@ def hash_main(alg):
     import six
 
     assert six.PY3, 'this only works under Py3'
-    assert gensim.models.utils_any2vec.FAST_VERSION == 0, 'Cython extensions are broken'
+    assert not DISABLE_CYTHON_TESTS, 'this only works if Cython extensions available'
 
     hashmap = {
-        'py_broken': gensim.models.utils_any2vec._ft_hash_py_broken,
-        'py_bytes': gensim.models.utils_any2vec._ft_hash_py_bytes,
-        'cy': gensim.models.utils_any2vec._ft_hash_cy,
-        'cy_broken': gensim.models.utils_any2vec._ft_hash_py_broken,
-        'cy_bytes': gensim.models.utils_any2vec._ft_hash_cy_bytes,
+        'py_broken': gensim.models.utils_any2vec._ft_hash_broken_py,
+        'py_bytes': gensim.models.utils_any2vec._ft_hash_bytes_py,
+        'cy_broken': gensim.models.utils_any2vec._ft_hash_broken_py,
+        'cy_bytes': gensim.models.utils_any2vec._ft_hash_bytes_cy,
     }
     try:
         fun = hashmap[alg]

From f392d808bfe8dbebb3486268cc9bd68d04d9f601 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 22:07:25 +1100
Subject: [PATCH 13/32] fixup: fix test_utils.py

---
 gensim/test/test_utils.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index 27fde0e20d..32f2f16ba1 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -335,21 +335,21 @@ def setUp(self):
         }
 
     def test_python(self):
-        actual = {k: gensim.models.utils_any2vec._ft_hash_py_bytes(k.encode('utf-8')) for k in self.expected}
+        actual = {k: gensim.models.utils_any2vec._ft_hash_bytes_py(k.encode('utf-8')) for k in self.expected}
         self.assertEqual(self.expected, actual)
 
     @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
     def test_cython(self):
-        actual = {k: gensim.models.utils_any2vec._ft_hash_cy_bytes(k.encode('utf-8')) for k in self.expected}
+        actual = {k: gensim.models.utils_any2vec._ft_hash_bytes_cy(k.encode('utf-8')) for k in self.expected}
         self.assertEqual(self.expected, actual)
 
     def test_python_broken(self):
-        actual = {k: gensim.models.utils_any2vec._ft_hash_py_broken(k) for k in self.expected}
+        actual = {k: gensim.models.utils_any2vec._ft_hash_broken_py(k) for k in self.expected}
         self.assertEqual(self.expected_broken, actual)
 
     @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
     def test_cython_broken(self):
-        actual = {k: gensim.models.utils_any2vec._ft_hash_cy_broken(k) for k in self.expected}
+        actual = {k: gensim.models.utils_any2vec._ft_hash_broken_cy(k) for k in self.expected}
         self.assertEqual(self.expected_broken, actual)
 
 

From 4fd56d5f37568bdfae29c84d41d178e7ea5ce97b Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 22:25:53 +1100
Subject: [PATCH 14/32] add tests for ngram generation

---
 gensim/test/test_utils.py | 66 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 65 insertions(+), 1 deletion(-)

diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index 32f2f16ba1..f7dfdd7027 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -6,7 +6,7 @@
 """
 Automated tests for checking various utils functions.
 """
-
+from __future__ import unicode_literals
 
 import logging
 import unittest
@@ -353,6 +353,70 @@ def test_cython_broken(self):
         self.assertEqual(self.expected_broken, actual)
 
 
+#
+# Run with:
+#
+#   python -c 'import gensim.test.test_utils as t;t.ngram_main()' py_text 3 5
+#
+def ngram_main():
+    """Generate ngrams for tests from standard input."""
+    import sys
+    import six
+
+    alg = sys.argv[1]
+    minn = int(sys.argv[2])
+    maxn = int(sys.argv[3])
+
+    assert six.PY3, 'this only works under Py3'
+    assert not DISABLE_CYTHON_TESTS, 'this only works if Cython extensions available'
+    assert minn <= maxn, 'expected sane command-line parameters'
+
+    hashmap = {
+        'py_text': gensim.models.utils_any2vec._compute_ngrams_py,
+        'py_bytes': gensim.models.utils_any2vec._compute_ngrams_bytes_py,
+        'cy_text': gensim.models.utils_any2vec._compute_ngrams_cy,
+        'cy_bytes': gensim.models.utils_any2vec._compute_ngrams_bytes_cy,
+    }
+    try:
+        fun = hashmap[alg]
+    except KeyError:
+        raise KeyError('invalid alg: %r expected one of %r' % (alg, sorted(hashmap)))
+
+    for line in sys.stdin:
+        word = line.rstrip('\n')
+        ngrams = fun(word, minn, maxn)
+        print("%r: %r," % (word, ngrams))
+
+
+class NgramsTest(unittest.TestCase):
+    def setUp(self):
+        self.expected_text = {
+            'test': ['<te', 'tes', 'est', 'st>', '<tes', 'test', 'est>', '<test', 'test>'],
+            'at the': [
+                '<at', 'at ', 't t', ' th', 'the', 'he>',
+                '<at ', 'at t', 't th', ' the', 'the>', '<at t', 'at th', 't the', ' the>'
+            ],
+            'at\nthe': [
+                '<at', 'at\n', 't\nt', '\nth', 'the', 'he>',
+                '<at ', 'at\nt', 't\nth', '\nthe', 'the>', '<at\nt', 'at\nth', 't\nthe', '\nthe>'
+            ],
+           'тест': ['<те', 'тес', 'ест', 'ст>', '<тес', 'тест', 'ест>', '<тест', 'тест>'],
+           'テスト': ['<テス', 'テスト', 'スト>', '<テスト', 'テスト>', '<テスト>'],
+           '試し': ['<試し', '試し>', '<試し>'],
+        }
+
+    def test_text_py(self):
+        for word in self.expected_text:
+            expected = self.expected_text[word]
+            actual = gensim.models.utils_any2vec._compute_ngrams_py(word, 3, 5)
+
+    @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
+    def test_text_cy(self):
+        for word in self.expected_text:
+            expected = self.expected_text[word]
+            actual = gensim.models.utils_any2vec._compute_ngrams_cy(word, 3, 5)
+
+
 if __name__ == '__main__':
     logging.root.setLevel(logging.WARNING)
     unittest.main()

From b614030f2689258dc9663960aa2059a8320debe3 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 22:28:49 +1100
Subject: [PATCH 15/32] fixup in tests

---
 gensim/test/test_utils.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index f7dfdd7027..2df746187f 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -398,7 +398,7 @@ def setUp(self):
             ],
             'at\nthe': [
                 '<at', 'at\n', 't\nt', '\nth', 'the', 'he>',
-                '<at ', 'at\nt', 't\nth', '\nthe', 'the>', '<at\nt', 'at\nth', 't\nthe', '\nthe>'
+                '<at\n', 'at\nt', 't\nth', '\nthe', 'the>', '<at\nt', 'at\nth', 't\nthe', '\nthe>'
             ],
            'тест': ['<те', 'тес', 'ест', 'ст>', '<тес', 'тест', 'ест>', '<тест', 'тест>'],
            'テスト': ['<テス', 'テスト', 'スト>', '<テスト', 'テスト>', '<テスト>'],
@@ -409,12 +409,16 @@ def test_text_py(self):
         for word in self.expected_text:
             expected = self.expected_text[word]
             actual = gensim.models.utils_any2vec._compute_ngrams_py(word, 3, 5)
+            self.assertEqual(len(expected), len(actual))
+            self.assertEqual(set(expected), set(actual))
 
     @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
     def test_text_cy(self):
         for word in self.expected_text:
             expected = self.expected_text[word]
             actual = gensim.models.utils_any2vec._compute_ngrams_cy(word, 3, 5)
+            self.assertEqual(len(expected), len(actual))
+            self.assertEqual(set(expected), set(actual))
 
 
 if __name__ == '__main__':

From 46e1ec1fdec37979db72a325d9bc1ab96460db90 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 22:35:24 +1100
Subject: [PATCH 16/32] add emoji test case

---
 gensim/test/test_utils.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index 2df746187f..74c3613954 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -403,6 +403,10 @@ def setUp(self):
            'тест': ['<те', 'тес', 'ест', 'ст>', '<тес', 'тест', 'ест>', '<тест', 'тест>'],
            'テスト': ['<テス', 'テスト', 'スト>', '<テスト', 'テスト>', '<テスト>'],
            '試し': ['<試し', '試し>', '<試し>'],
+            '🚑🚒🚓🚕': [
+                '<🚑🚒', '🚑🚒🚓', '🚒🚓🚕', '🚓🚕>',
+                '<🚑🚒🚓', '🚑🚒🚓🚕', '🚒🚓🚕>', '<🚑🚒🚓🚕', '🚑🚒🚓🚕>'
+            ],
         }
 
     def test_text_py(self):

From d1b80c04bce81ad8b253fe01232d1babe59d5c9e Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 22:48:18 +1100
Subject: [PATCH 17/32] minor fixup in logging message

---
 gensim/models/fasttext.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gensim/models/fasttext.py b/gensim/models/fasttext.py
index 97f5968cad..807ebec32d 100644
--- a/gensim/models/fasttext.py
+++ b/gensim/models/fasttext.py
@@ -713,7 +713,7 @@ def train(self, sentences=None, corpus_file=None, total_examples=None, total_wor
             raise ValueError(
                 'this model cannot be trained any further, '
                 'if this is a native model, try loading it with '
-                'with FastText.load_fasttext_format(path, full_model=True)'
+                'FastText.load_fasttext_format(path, full_model=True)'
             )
 
         super(FastText, self).train(

From 07c49c2f452e75cf5e6562b0a96239cb91c4cbb4 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 23:08:54 +1100
Subject: [PATCH 18/32] add byte tests

---
 gensim/test/test_utils.py | 60 ++++++++++++++++++++++++++++++++++++---
 1 file changed, 56 insertions(+), 4 deletions(-)

diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index 74c3613954..82d33470da 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -408,21 +408,73 @@ def setUp(self):
                 '<🚑🚒🚓', '🚑🚒🚓🚕', '🚒🚓🚕>', '<🚑🚒🚓🚕', '🚑🚒🚓🚕>'
             ],
         }
+        self.expected_bytes = {
+            'test': [b'<te', b'<tes', b'<test', b'tes', b'test', b'test>', b'est', b'est>', b'st>'],
+            'at the': [
+                b'<at', b'<at ', b'<at t', b'at ', b'at t', b'at th', b't t',
+                b't th', b't the', b' th', b' the', b' the>', b'the', b'the>', b'he>'
+            ],
+            'тест': [
+                b'<\xd1\x82\xd0\xb5', b'<\xd1\x82\xd0\xb5\xd1\x81', b'<\xd1\x82\xd0\xb5\xd1\x81\xd1\x82',
+                b'\xd1\x82\xd0\xb5\xd1\x81', b'\xd1\x82\xd0\xb5\xd1\x81\xd1\x82', b'\xd1\x82\xd0\xb5\xd1\x81\xd1\x82>',
+                b'\xd0\xb5\xd1\x81\xd1\x82', b'\xd0\xb5\xd1\x81\xd1\x82>', b'\xd1\x81\xd1\x82>'
+            ],
+            'テスト': [
+                b'<\xe3\x83\x86\xe3\x82\xb9', b'<\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88',
+                b'<\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88>', b'\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88',
+                b'\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88>',b'\xe3\x82\xb9\xe3\x83\x88>'
+            ],
+            '試し': [b'<\xe8\xa9\xa6\xe3\x81\x97', b'<\xe8\xa9\xa6\xe3\x81\x97>', b'\xe8\xa9\xa6\xe3\x81\x97>'],
+            '🚑🚒🚓🚕': [
+                b'<\xf0\x9f\x9a\x91\xf0\x9f\x9a\x92',
+                b'<\xf0\x9f\x9a\x91\xf0\x9f\x9a\x92\xf0\x9f\x9a\x93',
+                b'<\xf0\x9f\x9a\x91\xf0\x9f\x9a\x92\xf0\x9f\x9a\x93\xf0\x9f\x9a\x95',
+                b'\xf0\x9f\x9a\x91\xf0\x9f\x9a\x92\xf0\x9f\x9a\x93',
+                b'\xf0\x9f\x9a\x91\xf0\x9f\x9a\x92\xf0\x9f\x9a\x93\xf0\x9f\x9a\x95',
+                b'\xf0\x9f\x9a\x91\xf0\x9f\x9a\x92\xf0\x9f\x9a\x93\xf0\x9f\x9a\x95>',
+                b'\xf0\x9f\x9a\x92\xf0\x9f\x9a\x93\xf0\x9f\x9a\x95',
+                b'\xf0\x9f\x9a\x92\xf0\x9f\x9a\x93\xf0\x9f\x9a\x95>',
+                b'\xf0\x9f\x9a\x93\xf0\x9f\x9a\x95>'
+            ],
+        }
 
     def test_text_py(self):
         for word in self.expected_text:
             expected = self.expected_text[word]
             actual = gensim.models.utils_any2vec._compute_ngrams_py(word, 3, 5)
-            self.assertEqual(len(expected), len(actual))
-            self.assertEqual(set(expected), set(actual))
+            self.assertEqual(expected, actual)
 
     @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
     def test_text_cy(self):
         for word in self.expected_text:
             expected = self.expected_text[word]
             actual = gensim.models.utils_any2vec._compute_ngrams_cy(word, 3, 5)
-            self.assertEqual(len(expected), len(actual))
-            self.assertEqual(set(expected), set(actual))
+            self.assertEqual(expected, actual)
+
+    def test_bytes_py(self):
+        for word in self.expected_bytes:
+            expected = self.expected_bytes[word]
+            actual = gensim.models.utils_any2vec._compute_ngrams_bytes_py(word, 3, 5)
+            self.assertEqual(expected, actual)
+
+            expected_text = self.expected_text[word]
+            actual_text = [n.decode('utf-8') for n in actual]
+            #
+            # The text and byte implementations yield ngrams in different
+            # order, so the test ignores ngram order.
+            #
+            self.assertEqual(sorted(set(expected_text)), sorted(set(actual_text)))
+
+    @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
+    def test_bytes_cy(self):
+        for word in self.expected_bytes:
+            expected = self.expected_bytes[word]
+            actual = gensim.models.utils_any2vec._compute_ngrams_bytes_cy(word, 3, 5)
+            self.assertEqual(expected, actual)
+
+            expected_text = self.expected_text[word]
+            actual_text = [n.decode('utf-8') for n in actual]
+            self.assertEqual(sorted(set(expected_text)), sorted(set(actual_text)))
 
 
 if __name__ == '__main__':

From ccaba0819297d0d409dfc89a563905c9f65d30cb Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Tue, 22 Jan 2019 23:09:20 +1100
Subject: [PATCH 19/32] remove FIXME, absense of ord does not influence
 correctness

---
 gensim/models/_utils_any2vec.pyx | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index 187b1905bd..cecd3b0707 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -19,15 +19,6 @@ import numpy as np
 cimport numpy as np
 
 
-cdef _byte_to_int_py3(b):
-    return b
-
-cdef _byte_to_int_py2(b):
-    return ord(b)
-
-_byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3
-
-
 cpdef ft_hash_bytes(bytes bytez):
     """Calculate hash based on `bytez`.
     Reproduce `hash method from Facebook fastText implementation
@@ -48,7 +39,7 @@ cpdef ft_hash_bytes(bytes bytez):
     cdef char b
 
     for b in bytez:
-        h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+        h = h ^ <uint32_t>(<int8_t>b)
         h = h * 16777619
     return h
 

From 0b0e46ea8f45b64d86e0befd9a140898ed136971 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Wed, 23 Jan 2019 08:28:33 +1100
Subject: [PATCH 20/32] review response: introduce list slicing

---
 gensim/models/_utils_any2vec.c   | 1705 +++++-------------------------
 gensim/models/_utils_any2vec.pyx |    5 +-
 gensim/models/utils_any2vec.py   |    7 +-
 3 files changed, 280 insertions(+), 1437 deletions(-)

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index e66d4bd506..6e7118f529 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -844,7 +844,6 @@ static const char *__pyx_filename;
 static const char *__pyx_f[] = {
   "gensim/models/_utils_any2vec.pyx",
   "__init__.pxd",
-  "stringsource",
   "type.pxd",
 };
 
@@ -1062,7 +1061,6 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 
 
 /*--- Type declarations ---*/
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py;
 
 /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
  * ctypedef npy_longdouble longdouble_t
@@ -1100,19 +1098,6 @@ typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_complex_t;
 
-/* "cfunc.to_py":64
- * 
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
- *     def wrap(object b):
- *         """wrap(b)"""
- */
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py {
-  PyObject_HEAD
-  PyObject *(*__pyx_v_f)(PyObject *);
-};
-
-
 /* --- Runtime support code (head) --- */
 /* Refnanny.proto */
 #ifndef CYTHON_REFNANNY
@@ -1187,6 +1172,16 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject
 /* GetBuiltinName.proto */
 static PyObject *__Pyx_GetBuiltinName(PyObject *name);
 
+/* ArgTypeTest.proto */
+#define __Pyx_ArgTypeTest(obj, type, none_allowed, name, exact)\
+    ((likely((Py_TYPE(obj) == type) | (none_allowed && (obj == Py_None)))) ? 1 :\
+        __Pyx__ArgTypeTest(obj, type, name, exact))
+static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact);
+
+/* unicode_iter.proto */
+static CYTHON_INLINE int __Pyx_init_unicode_iteration(
+    PyObject* ustring, Py_ssize_t *length, void** data, int *kind);
+
 /* UnicodeAsUCS4.proto */
 static CYTHON_INLINE Py_UCS4 __Pyx_PyUnicode_AsPy_UCS4(PyObject*);
 
@@ -1199,16 +1194,6 @@ static CYTHON_INLINE Py_UCS4 __Pyx_PyUnicode_AsPy_UCS4(PyObject*);
 #endif
 static long __Pyx__PyObject_Ord(PyObject* c);
 
-/* ArgTypeTest.proto */
-#define __Pyx_ArgTypeTest(obj, type, none_allowed, name, exact)\
-    ((likely((Py_TYPE(obj) == type) | (none_allowed && (obj == Py_None)))) ? 1 :\
-        __Pyx__ArgTypeTest(obj, type, name, exact))
-static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact);
-
-/* unicode_iter.proto */
-static CYTHON_INLINE int __Pyx_init_unicode_iteration(
-    PyObject* ustring, Py_ssize_t *length, void** data, int *kind);
-
 /* PyObjectFormatSimple.proto */
 #if CYTHON_COMPILING_IN_PYPY
     #define __Pyx_PyObject_FormatSimple(s, f) (\
@@ -1461,70 +1446,6 @@ static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
 #endif
 
-/* FetchCommonType.proto */
-static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type);
-
-/* CythonFunction.proto */
-#define __Pyx_CyFunction_USED 1
-#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
-#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
-#define __Pyx_CYFUNCTION_CCLASS        0x04
-#define __Pyx_CyFunction_GetClosure(f)\
-    (((__pyx_CyFunctionObject *) (f))->func_closure)
-#define __Pyx_CyFunction_GetClassObj(f)\
-    (((__pyx_CyFunctionObject *) (f))->func_classobj)
-#define __Pyx_CyFunction_Defaults(type, f)\
-    ((type *)(((__pyx_CyFunctionObject *) (f))->defaults))
-#define __Pyx_CyFunction_SetDefaultsGetter(f, g)\
-    ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g)
-typedef struct {
-    PyCFunctionObject func;
-#if PY_VERSION_HEX < 0x030500A0
-    PyObject *func_weakreflist;
-#endif
-    PyObject *func_dict;
-    PyObject *func_name;
-    PyObject *func_qualname;
-    PyObject *func_doc;
-    PyObject *func_globals;
-    PyObject *func_code;
-    PyObject *func_closure;
-    PyObject *func_classobj;
-    void *defaults;
-    int defaults_pyobjects;
-    int flags;
-    PyObject *defaults_tuple;
-    PyObject *defaults_kwdict;
-    PyObject *(*defaults_getter)(PyObject *);
-    PyObject *func_annotations;
-} __pyx_CyFunctionObject;
-static PyTypeObject *__pyx_CyFunctionType = 0;
-#define __Pyx_CyFunction_Check(obj)  (__Pyx_TypeCheck(obj, __pyx_CyFunctionType))
-#define __Pyx_CyFunction_NewEx(ml, flags, qualname, self, module, globals, code)\
-    __Pyx_CyFunction_New(__pyx_CyFunctionType, ml, flags, qualname, self, module, globals, code)
-static PyObject *__Pyx_CyFunction_New(PyTypeObject *, PyMethodDef *ml,
-                                      int flags, PyObject* qualname,
-                                      PyObject *self,
-                                      PyObject *module, PyObject *globals,
-                                      PyObject* code);
-static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
-                                                         size_t size,
-                                                         int pyobjects);
-static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m,
-                                                            PyObject *tuple);
-static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *m,
-                                                             PyObject *dict);
-static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m,
-                                                              PyObject *dict);
-static int __pyx_CyFunction_init(void);
-
-/* PyObject_GenericGetAttrNoDict.proto */
-#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
-static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name);
-#else
-#define __Pyx_PyObject_GenericGetAttrNoDict PyObject_GenericGetAttr
-#endif
-
 /* TypeImport.proto */
 #ifndef __PYX_HAVE_RT_ImportType_proto
 #define __PYX_HAVE_RT_ImportType_proto
@@ -1568,9 +1489,6 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
 static void __Pyx_AddTraceback(const char *funcname, int c_line,
                                int py_line, const char *filename);
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
-
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value);
 
@@ -1690,6 +1608,9 @@ static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *);
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
+
 /* CIntFromPy.proto */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
 
@@ -1743,14 +1664,10 @@ static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
 static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/
 
 /* Module declarations from 'gensim.models._utils_any2vec' */
-static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObject *); /*proto*/
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObject *); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
-static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*)(PyObject *)); /*proto*/
 #define __Pyx_MODULE_NAME "gensim.models._utils_any2vec"
 extern int __pyx_module_is_main_gensim__models___utils_any2vec;
 int __pyx_module_is_main_gensim__models___utils_any2vec = 0;
@@ -1761,7 +1678,6 @@ static PyObject *__pyx_builtin_ValueError;
 static PyObject *__pyx_builtin_RuntimeError;
 static PyObject *__pyx_builtin_ImportError;
 static const char __pyx_k_[] = "<";
-static const char __pyx_k_b[] = "b";
 static const char __pyx_k__2[] = ">";
 static const char __pyx_k_np[] = "np";
 static const char __pyx_k_PY2[] = "PY2";
@@ -1770,7 +1686,6 @@ static const char __pyx_k_main[] = "__main__";
 static const char __pyx_k_name[] = "__name__";
 static const char __pyx_k_test[] = "__test__";
 static const char __pyx_k_word[] = "word";
-static const char __pyx_k_wrap[] = "wrap";
 static const char __pyx_k_max_n[] = "max_n";
 static const char __pyx_k_min_n[] = "min_n";
 static const char __pyx_k_numpy[] = "numpy";
@@ -1780,13 +1695,9 @@ static const char __pyx_k_MB_MASK[] = "_MB_MASK";
 static const char __pyx_k_MB_START[] = "_MB_START";
 static const char __pyx_k_ValueError[] = "ValueError";
 static const char __pyx_k_ImportError[] = "ImportError";
-static const char __pyx_k_byte_to_int[] = "_byte_to_int";
-static const char __pyx_k_cfunc_to_py[] = "cfunc.to_py";
 static const char __pyx_k_RuntimeError[] = "RuntimeError";
-static const char __pyx_k_stringsource[] = "stringsource";
 static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
 static const char __pyx_k_ndarray_is_not_C_contiguous[] = "ndarray is not C contiguous";
-static const char __pyx_k_Pyx_CFunc_object____object___t[] = "__Pyx_CFunc_object____object___to_py.<locals>.wrap";
 static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
 static const char __pyx_k_unknown_dtype_code_in_numpy_pxd[] = "unknown dtype code in numpy.pxd (%d)";
 static const char __pyx_k_Format_string_allocated_too_shor[] = "Format string allocated too short, see comment in numpy.pxd";
@@ -1803,13 +1714,9 @@ static PyObject *__pyx_n_s_MB_MASK;
 static PyObject *__pyx_n_s_MB_START;
 static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
 static PyObject *__pyx_n_s_PY2;
-static PyObject *__pyx_n_s_Pyx_CFunc_object____object___t;
 static PyObject *__pyx_n_s_RuntimeError;
 static PyObject *__pyx_n_s_ValueError;
 static PyObject *__pyx_kp_u__2;
-static PyObject *__pyx_n_s_b;
-static PyObject *__pyx_n_s_byte_to_int;
-static PyObject *__pyx_n_s_cfunc_to_py;
 static PyObject *__pyx_n_s_cline_in_traceback;
 static PyObject *__pyx_n_s_import;
 static PyObject *__pyx_n_s_main;
@@ -1824,19 +1731,15 @@ static PyObject *__pyx_kp_s_numpy_core_multiarray_failed_to;
 static PyObject *__pyx_kp_s_numpy_core_umath_failed_to_impor;
 static PyObject *__pyx_n_s_range;
 static PyObject *__pyx_n_s_six;
-static PyObject *__pyx_kp_s_stringsource;
 static PyObject *__pyx_n_s_test;
 static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_n_s_word;
-static PyObject *__pyx_n_s_wrap;
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
-static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /* proto */
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_int_0;
 static PyObject *__pyx_int_1;
 static PyObject *__pyx_int_128;
@@ -1848,100 +1751,9 @@ static PyObject *__pyx_tuple__6;
 static PyObject *__pyx_tuple__7;
 static PyObject *__pyx_tuple__8;
 static PyObject *__pyx_tuple__9;
-static PyObject *__pyx_tuple__10;
-static PyObject *__pyx_codeobj__11;
 /* Late includes */
 
 /* "gensim/models/_utils_any2vec.pyx":22
- * 
- * 
- * cdef _byte_to_int_py3(b):             # <<<<<<<<<<<<<<
- *     return b
- * 
- */
-
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3(PyObject *__pyx_v_b) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("_byte_to_int_py3", 0);
-
-  /* "gensim/models/_utils_any2vec.pyx":23
- * 
- * cdef _byte_to_int_py3(b):
- *     return b             # <<<<<<<<<<<<<<
- * 
- * cdef _byte_to_int_py2(b):
- */
-  __Pyx_XDECREF(__pyx_r);
-  __Pyx_INCREF(__pyx_v_b);
-  __pyx_r = __pyx_v_b;
-  goto __pyx_L0;
-
-  /* "gensim/models/_utils_any2vec.pyx":22
- * 
- * 
- * cdef _byte_to_int_py3(b):             # <<<<<<<<<<<<<<
- *     return b
- * 
- */
-
-  /* function exit code */
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "gensim/models/_utils_any2vec.pyx":25
- *     return b
- * 
- * cdef _byte_to_int_py2(b):             # <<<<<<<<<<<<<<
- *     return ord(b)
- * 
- */
-
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2(PyObject *__pyx_v_b) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  long __pyx_t_1;
-  PyObject *__pyx_t_2 = NULL;
-  __Pyx_RefNannySetupContext("_byte_to_int_py2", 0);
-
-  /* "gensim/models/_utils_any2vec.pyx":26
- * 
- * cdef _byte_to_int_py2(b):
- *     return ord(b)             # <<<<<<<<<<<<<<
- * 
- * _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3
- */
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_PyObject_Ord(__pyx_v_b); if (unlikely(__pyx_t_1 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 26, __pyx_L1_error)
-  __pyx_t_2 = __Pyx_PyInt_From_long(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 26, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_r = __pyx_t_2;
-  __pyx_t_2 = 0;
-  goto __pyx_L0;
-
-  /* "gensim/models/_utils_any2vec.pyx":25
- *     return b
- * 
- * cdef _byte_to_int_py2(b):             # <<<<<<<<<<<<<<
- *     return ord(b)
- * 
- */
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_AddTraceback("gensim.models._utils_any2vec._byte_to_int_py2", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = 0;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "gensim/models/_utils_any2vec.pyx":31
  * 
  * 
  * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
@@ -1963,7 +1775,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
   PyObject *__pyx_t_6 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":47
+  /* "gensim/models/_utils_any2vec.pyx":38
  * 
  *     """
  *     cdef uint32_t h = 2166136261             # <<<<<<<<<<<<<<
@@ -1972,16 +1784,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":50
+  /* "gensim/models/_utils_any2vec.pyx":41
  *     cdef char b
  * 
  *     for b in bytez:             # <<<<<<<<<<<<<<
- *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+ *         h = h ^ <uint32_t>(<int8_t>b)
  *         h = h * 16777619
  */
   if (unlikely(__pyx_v_bytez == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(0, 50, __pyx_L1_error)
+    __PYX_ERR(0, 41, __pyx_L1_error)
   }
   __Pyx_INCREF(__pyx_v_bytez);
   __pyx_t_1 = __pyx_v_bytez;
@@ -1991,18 +1803,18 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
     __pyx_t_2 = __pyx_t_5;
     __pyx_v_b = (__pyx_t_2[0]);
 
-    /* "gensim/models/_utils_any2vec.pyx":51
+    /* "gensim/models/_utils_any2vec.pyx":42
  * 
  *     for b in bytez:
- *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss             # <<<<<<<<<<<<<<
+ *         h = h ^ <uint32_t>(<int8_t>b)             # <<<<<<<<<<<<<<
  *         h = h * 16777619
  *     return h
  */
     __pyx_v_h = (__pyx_v_h ^ ((uint32_t)((int8_t)__pyx_v_b)));
 
-    /* "gensim/models/_utils_any2vec.pyx":52
+    /* "gensim/models/_utils_any2vec.pyx":43
  *     for b in bytez:
- *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+ *         h = h ^ <uint32_t>(<int8_t>b)
  *         h = h * 16777619             # <<<<<<<<<<<<<<
  *     return h
  * 
@@ -2011,21 +1823,21 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":53
- *         h = h ^ <uint32_t>(<int8_t>b)  # FIXME I drop 'ord' from py2, not sure about correctenss
+  /* "gensim/models/_utils_any2vec.pyx":44
+ *         h = h ^ <uint32_t>(<int8_t>b)
  *         h = h * 16777619
  *     return h             # <<<<<<<<<<<<<<
  * 
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_6 = __Pyx_PyInt_From_uint32_t(__pyx_v_h); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 53, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_From_uint32_t(__pyx_v_h); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 44, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __pyx_r = __pyx_t_6;
   __pyx_t_6 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":31
+  /* "gensim/models/_utils_any2vec.pyx":22
  * 
  * 
  * cpdef ft_hash_bytes(bytes bytez):             # <<<<<<<<<<<<<<
@@ -2052,7 +1864,7 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes(PyObje
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash_bytes (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_bytez), (&PyBytes_Type), 1, "bytez", 1))) __PYX_ERR(0, 31, __pyx_L1_error)
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_bytez), (&PyBytes_Type), 1, "bytez", 1))) __PYX_ERR(0, 22, __pyx_L1_error)
   __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_self, ((PyObject*)__pyx_v_bytez));
 
   /* function exit code */
@@ -2070,7 +1882,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_bytes", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_v_bytez, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 31, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(__pyx_v_bytez, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 22, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2087,7 +1899,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":56
+/* "gensim/models/_utils_any2vec.pyx":47
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2112,7 +1924,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   long __pyx_t_9;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":73
+  /* "gensim/models/_utils_any2vec.pyx":64
  * 
  *     """
  *     cdef unsigned int h = 2166136261             # <<<<<<<<<<<<<<
@@ -2121,7 +1933,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   __pyx_v_h = 0x811C9DC5;
 
-  /* "gensim/models/_utils_any2vec.pyx":74
+  /* "gensim/models/_utils_any2vec.pyx":65
  *     """
  *     cdef unsigned int h = 2166136261
  *     for c in string:             # <<<<<<<<<<<<<<
@@ -2130,29 +1942,29 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  */
   if (unlikely(__pyx_v_string == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' is not iterable");
-    __PYX_ERR(0, 74, __pyx_L1_error)
+    __PYX_ERR(0, 65, __pyx_L1_error)
   }
   __Pyx_INCREF(__pyx_v_string);
   __pyx_t_1 = __pyx_v_string;
-  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 74, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_init_unicode_iteration(__pyx_t_1, (&__pyx_t_3), (&__pyx_t_4), (&__pyx_t_5)); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 65, __pyx_L1_error)
   for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_3; __pyx_t_7++) {
     __pyx_t_2 = __pyx_t_7;
-    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 74, __pyx_L1_error)
+    __pyx_t_8 = PyUnicode_FromOrdinal(__Pyx_PyUnicode_READ(__pyx_t_5, __pyx_t_4, __pyx_t_2)); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 65, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_XDECREF_SET(__pyx_v_c, __pyx_t_8);
     __pyx_t_8 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":75
+    /* "gensim/models/_utils_any2vec.pyx":66
  *     cdef unsigned int h = 2166136261
  *     for c in string:
  *         h ^= ord(c)             # <<<<<<<<<<<<<<
  *         h *= 16777619
  *     return h
  */
-    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 75, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyObject_Ord(__pyx_v_c); if (unlikely(__pyx_t_9 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 66, __pyx_L1_error)
     __pyx_v_h = (__pyx_v_h ^ __pyx_t_9);
 
-    /* "gensim/models/_utils_any2vec.pyx":76
+    /* "gensim/models/_utils_any2vec.pyx":67
  *     for c in string:
  *         h ^= ord(c)
  *         h *= 16777619             # <<<<<<<<<<<<<<
@@ -2163,7 +1975,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":77
+  /* "gensim/models/_utils_any2vec.pyx":68
  *         h ^= ord(c)
  *         h *= 16777619
  *     return h             # <<<<<<<<<<<<<<
@@ -2171,13 +1983,13 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObjec
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 77, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_From_unsigned_int(__pyx_v_h); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 68, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_8);
   __pyx_r = __pyx_t_8;
   __pyx_t_8 = 0;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":56
+  /* "gensim/models/_utils_any2vec.pyx":47
  * 
  * 
  * cpdef ft_hash_broken(unicode string):             # <<<<<<<<<<<<<<
@@ -2205,7 +2017,7 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken(PyObj
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("ft_hash_broken (wrapper)", 0);
-  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 56, __pyx_L1_error)
+  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_string), (&PyUnicode_Type), 1, "string", 1))) __PYX_ERR(0, 47, __pyx_L1_error)
   __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(__pyx_self, ((PyObject*)__pyx_v_string));
 
   /* function exit code */
@@ -2223,7 +2035,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHO
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("ft_hash_broken", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(__pyx_v_string, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 47, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2240,7 +2052,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHO
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":80
+/* "gensim/models/_utils_any2vec.pyx":71
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2272,14 +2084,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":98
+  /* "gensim/models/_utils_any2vec.pyx":89
  * 
  *     """
  *     cdef unicode extended_word = f'<{word}>'             # <<<<<<<<<<<<<<
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  */
-  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 89, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = 0;
   __pyx_t_3 = 127;
@@ -2287,7 +2099,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u_);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_kp_u_);
-  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 89, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_3 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) > __pyx_t_3) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) : __pyx_t_3;
   __pyx_t_2 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_4);
@@ -2298,43 +2110,43 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u__2);
   PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_kp_u__2);
-  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 89, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_extended_word = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":99
+  /* "gensim/models/_utils_any2vec.pyx":90
  *     """
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []             # <<<<<<<<<<<<<<
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  */
-  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 90, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_v_ngrams = ((PyObject*)__pyx_t_4);
   __pyx_t_4 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":100
+  /* "gensim/models/_utils_any2vec.pyx":91
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  */
-  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyInt_From_unsigned_int(__pyx_v_min_n); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 91, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_5 = __pyx_v_max_n;
-  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 91, __pyx_L1_error)
   if (((__pyx_t_5 < __pyx_t_2) != 0)) {
     __pyx_t_6 = __pyx_t_5;
   } else {
     __pyx_t_6 = __pyx_t_2;
   }
-  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_6 + 1)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 91, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 91, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_GIVEREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_4);
@@ -2342,16 +2154,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_1);
   __pyx_t_4 = 0;
   __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 91, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
     __pyx_t_7 = __pyx_t_1; __Pyx_INCREF(__pyx_t_7); __pyx_t_6 = 0;
     __pyx_t_8 = NULL;
   } else {
-    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 100, __pyx_L1_error)
+    __pyx_t_6 = -1; __pyx_t_7 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 91, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 100, __pyx_L1_error)
+    __pyx_t_8 = Py_TYPE(__pyx_t_7)->tp_iternext; if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 91, __pyx_L1_error)
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   for (;;) {
@@ -2359,17 +2171,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (likely(PyList_CheckExact(__pyx_t_7))) {
         if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
+        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 91, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 91, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       } else {
         if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_7)) break;
         #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
+        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++; if (unlikely(0 < 0)) __PYX_ERR(0, 91, __pyx_L1_error)
         #else
-        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+        __pyx_t_1 = PySequence_ITEM(__pyx_t_7, __pyx_t_6); __pyx_t_6++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 91, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         #endif
       }
@@ -2379,7 +2191,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         PyObject* exc_type = PyErr_Occurred();
         if (exc_type) {
           if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-          else __PYX_ERR(0, 100, __pyx_L1_error)
+          else __PYX_ERR(0, 91, __pyx_L1_error)
         }
         break;
       }
@@ -2388,23 +2200,23 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_XDECREF_SET(__pyx_v_ngram_length, __pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":101
+    /* "gensim/models/_utils_any2vec.pyx":92
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams
  */
-    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 101, __pyx_L1_error)
-    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyUnicode_GET_LENGTH(__pyx_v_extended_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 92, __pyx_L1_error)
+    __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_4 = PyNumber_Subtract(__pyx_t_1, __pyx_v_ngram_length); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyInt_AddObjC(__pyx_t_4, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_int_0);
     __Pyx_GIVEREF(__pyx_int_0);
@@ -2412,16 +2224,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     __Pyx_GIVEREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     if (likely(PyList_CheckExact(__pyx_t_1)) || PyTuple_CheckExact(__pyx_t_1)) {
       __pyx_t_4 = __pyx_t_1; __Pyx_INCREF(__pyx_t_4); __pyx_t_2 = 0;
       __pyx_t_9 = NULL;
     } else {
-      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 101, __pyx_L1_error)
+      __pyx_t_2 = -1; __pyx_t_4 = PyObject_GetIter(__pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 92, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 101, __pyx_L1_error)
+      __pyx_t_9 = Py_TYPE(__pyx_t_4)->tp_iternext; if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 92, __pyx_L1_error)
     }
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     for (;;) {
@@ -2429,17 +2241,17 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
         if (likely(PyList_CheckExact(__pyx_t_4))) {
           if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
+          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 92, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         } else {
           if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_4)) break;
           #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
+          __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_2); __Pyx_INCREF(__pyx_t_1); __pyx_t_2++; if (unlikely(0 < 0)) __PYX_ERR(0, 92, __pyx_L1_error)
           #else
-          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+          __pyx_t_1 = PySequence_ITEM(__pyx_t_4, __pyx_t_2); __pyx_t_2++; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_1);
           #endif
         }
@@ -2449,7 +2261,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
           PyObject* exc_type = PyErr_Occurred();
           if (exc_type) {
             if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) PyErr_Clear();
-            else __PYX_ERR(0, 101, __pyx_L1_error)
+            else __PYX_ERR(0, 92, __pyx_L1_error)
           }
           break;
         }
@@ -2458,7 +2270,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       __Pyx_XDECREF_SET(__pyx_v_i, __pyx_t_1);
       __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":102
+      /* "gensim/models/_utils_any2vec.pyx":93
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])             # <<<<<<<<<<<<<<
@@ -2471,26 +2283,26 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
       if (__pyx_t_11) {
         __pyx_t_10 = 0;
       } else {
-        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 102, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_12 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 93, __pyx_L1_error)
         __pyx_t_10 = __pyx_t_12;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+      __pyx_t_1 = PyNumber_Add(__pyx_v_i, __pyx_v_ngram_length); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 93, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_11 = (__pyx_t_1 == Py_None);
       if (__pyx_t_11) {
         __pyx_t_12 = PY_SSIZE_T_MAX;
       } else {
-        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 102, __pyx_L1_error)
+        __pyx_t_13 = __Pyx_PyIndex_AsSsize_t(__pyx_t_1); if (unlikely((__pyx_t_13 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 93, __pyx_L1_error)
         __pyx_t_12 = __pyx_t_13;
       }
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyUnicode_Substring(__pyx_v_extended_word, __pyx_t_10, __pyx_t_12); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 93, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 102, __pyx_L1_error)
+      __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 93, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "gensim/models/_utils_any2vec.pyx":101
+      /* "gensim/models/_utils_any2vec.pyx":92
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):
  *         for i in range(0, len(extended_word) - ngram_length + 1):             # <<<<<<<<<<<<<<
@@ -2500,7 +2312,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
     }
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "gensim/models/_utils_any2vec.pyx":100
+    /* "gensim/models/_utils_any2vec.pyx":91
  *     cdef unicode extended_word = f'<{word}>'
  *     ngrams = []
  *     for ngram_length in range(min_n, min(len(extended_word), max_n) + 1):             # <<<<<<<<<<<<<<
@@ -2510,7 +2322,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   }
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":103
+  /* "gensim/models/_utils_any2vec.pyx":94
  *         for i in range(0, len(extended_word) - ngram_length + 1):
  *             ngrams.append(extended_word[i:i + ngram_length])
  *     return ngrams             # <<<<<<<<<<<<<<
@@ -2522,7 +2334,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
   __pyx_r = __pyx_v_ngrams;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":80
+  /* "gensim/models/_utils_any2vec.pyx":71
  * 
  * 
  * cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2582,17 +2394,17 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObj
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 80, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 1); __PYX_ERR(0, 71, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 80, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, 2); __PYX_ERR(0, 71, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 80, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams") < 0)) __PYX_ERR(0, 71, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -2602,12 +2414,12 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams(PyObj
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
     }
     __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 80, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 80, __pyx_L3_error)
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 71, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 71, __pyx_L3_error)
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 80, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 71, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2626,7 +2438,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHO
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("compute_ngrams", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 80, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 71, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2643,7 +2455,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHO
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":113
+/* "gensim/models/_utils_any2vec.pyx":104
  * 
  * 
  * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2678,14 +2490,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":137
+  /* "gensim/models/_utils_any2vec.pyx":128
  * 
  *     """
  *     cdef bytes utf8_word = f'<{word}>'.encode("utf-8")             # <<<<<<<<<<<<<<
  *     cdef int num_bytes = len(utf8_word)
  *     cdef int j, i, n
  */
-  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 137, __pyx_L1_error)
+  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = 0;
   __pyx_t_3 = 127;
@@ -2693,7 +2505,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u_);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_kp_u_);
-  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 137, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_3 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) > __pyx_t_3) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) : __pyx_t_3;
   __pyx_t_2 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_4);
@@ -2704,16 +2516,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   __pyx_t_2 += 1;
   __Pyx_GIVEREF(__pyx_kp_u__2);
   PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_kp_u__2);
-  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 137, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyUnicode_AsUTF8String(((PyObject*)__pyx_t_4)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 137, __pyx_L1_error)
+  __pyx_t_1 = PyUnicode_AsUTF8String(((PyObject*)__pyx_t_4)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __pyx_v_utf8_word = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":138
+  /* "gensim/models/_utils_any2vec.pyx":129
  *     """
  *     cdef bytes utf8_word = f'<{word}>'.encode("utf-8")
  *     cdef int num_bytes = len(utf8_word)             # <<<<<<<<<<<<<<
@@ -2722,73 +2534,61 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
   if (unlikely(__pyx_v_utf8_word == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
-    __PYX_ERR(0, 138, __pyx_L1_error)
+    __PYX_ERR(0, 129, __pyx_L1_error)
   }
-  __pyx_t_2 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 138, __pyx_L1_error)
+  __pyx_t_2 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 129, __pyx_L1_error)
   __pyx_v_num_bytes = __pyx_t_2;
 
-  /* "gensim/models/_utils_any2vec.pyx":141
+  /* "gensim/models/_utils_any2vec.pyx":132
  *     cdef int j, i, n
  * 
  *     ngrams = []             # <<<<<<<<<<<<<<
  *     for i in range(num_bytes):
- *         ngram = []
+ *         if utf8_word[i] & _MB_MASK == _MB_START:
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 141, __pyx_L1_error)
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_ngrams = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":142
+  /* "gensim/models/_utils_any2vec.pyx":133
  * 
  *     ngrams = []
  *     for i in range(num_bytes):             # <<<<<<<<<<<<<<
- *         ngram = []
- * 
+ *         if utf8_word[i] & _MB_MASK == _MB_START:
+ *             continue
  */
   __pyx_t_5 = __pyx_v_num_bytes;
   __pyx_t_6 = __pyx_t_5;
   for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
     __pyx_v_i = __pyx_t_7;
 
-    /* "gensim/models/_utils_any2vec.pyx":143
+    /* "gensim/models/_utils_any2vec.pyx":134
  *     ngrams = []
  *     for i in range(num_bytes):
- *         ngram = []             # <<<<<<<<<<<<<<
- * 
- *         if utf8_word[i] & _MB_MASK == _MB_START:
- */
-    __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 143, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_1));
-    __pyx_t_1 = 0;
-
-    /* "gensim/models/_utils_any2vec.pyx":145
- *         ngram = []
- * 
  *         if utf8_word[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
  *             continue
  * 
  */
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_i, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 145, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_i, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 145, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 145, __pyx_L1_error)
+    __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 134, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 145, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 145, __pyx_L1_error)
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) __PYX_ERR(0, 145, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) __PYX_ERR(0, 134, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_9) {
 
-      /* "gensim/models/_utils_any2vec.pyx":146
- * 
+      /* "gensim/models/_utils_any2vec.pyx":135
+ *     for i in range(num_bytes):
  *         if utf8_word[i] & _MB_MASK == _MB_START:
  *             continue             # <<<<<<<<<<<<<<
  * 
@@ -2796,33 +2596,33 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
       goto __pyx_L3_continue;
 
-      /* "gensim/models/_utils_any2vec.pyx":145
- *         ngram = []
- * 
+      /* "gensim/models/_utils_any2vec.pyx":134
+ *     ngrams = []
+ *     for i in range(num_bytes):
  *         if utf8_word[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
  *             continue
  * 
  */
     }
 
-    /* "gensim/models/_utils_any2vec.pyx":148
+    /* "gensim/models/_utils_any2vec.pyx":137
  *             continue
  * 
  *         j, n = i, 1             # <<<<<<<<<<<<<<
  *         while j < num_bytes and n <= max_n:
- *             ngram.append(utf8_word[j])
+ *             j += 1
  */
     __pyx_t_10 = __pyx_v_i;
     __pyx_t_11 = 1;
     __pyx_v_j = __pyx_t_10;
     __pyx_v_n = __pyx_t_11;
 
-    /* "gensim/models/_utils_any2vec.pyx":149
+    /* "gensim/models/_utils_any2vec.pyx":138
  * 
  *         j, n = i, 1
  *         while j < num_bytes and n <= max_n:             # <<<<<<<<<<<<<<
- *             ngram.append(utf8_word[j])
  *             j += 1
+ *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
  */
     while (1) {
       __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
@@ -2836,33 +2636,21 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
       __pyx_L8_bool_binop_done:;
       if (!__pyx_t_9) break;
 
-      /* "gensim/models/_utils_any2vec.pyx":150
+      /* "gensim/models/_utils_any2vec.pyx":139
  *         j, n = i, 1
  *         while j < num_bytes and n <= max_n:
- *             ngram.append(utf8_word[j])             # <<<<<<<<<<<<<<
- *             j += 1
- *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
- */
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 150, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngram, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 150, __pyx_L1_error)
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-
-      /* "gensim/models/_utils_any2vec.pyx":151
- *         while j < num_bytes and n <= max_n:
- *             ngram.append(utf8_word[j])
  *             j += 1             # <<<<<<<<<<<<<<
  *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
- *                 ngram.append(utf8_word[j])
+ *                 j += 1
  */
       __pyx_v_j = (__pyx_v_j + 1);
 
-      /* "gensim/models/_utils_any2vec.pyx":152
- *             ngram.append(utf8_word[j])
+      /* "gensim/models/_utils_any2vec.pyx":140
+ *         while j < num_bytes and n <= max_n:
  *             j += 1
  *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:             # <<<<<<<<<<<<<<
- *                 ngram.append(utf8_word[j])
  *                 j += 1
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  */
       while (1) {
         __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
@@ -2871,53 +2659,41 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
           __pyx_t_9 = __pyx_t_12;
           goto __pyx_L12_bool_binop_done;
         }
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 152, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
-        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 152, __pyx_L1_error)
+        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 140, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 152, __pyx_L1_error)
+        __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 140, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_8);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 152, __pyx_L1_error)
+        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 140, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 152, __pyx_L1_error)
+        __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_12 < 0)) __PYX_ERR(0, 152, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_12 < 0)) __PYX_ERR(0, 140, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __pyx_t_9 = __pyx_t_12;
         __pyx_L12_bool_binop_done:;
         if (!__pyx_t_9) break;
 
-        /* "gensim/models/_utils_any2vec.pyx":153
+        /* "gensim/models/_utils_any2vec.pyx":141
  *             j += 1
  *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
- *                 ngram.append(utf8_word[j])             # <<<<<<<<<<<<<<
- *                 j += 1
- *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
- */
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 153, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngram, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 153, __pyx_L1_error)
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-
-        /* "gensim/models/_utils_any2vec.pyx":154
- *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
- *                 ngram.append(utf8_word[j])
  *                 j += 1             # <<<<<<<<<<<<<<
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
- *                 ngrams.append(bytes(ngram))
+ *                 ngram = bytes(utf8_word[i:j])
  */
         __pyx_v_j = (__pyx_v_j + 1);
       }
 
-      /* "gensim/models/_utils_any2vec.pyx":155
- *                 ngram.append(utf8_word[j])
+      /* "gensim/models/_utils_any2vec.pyx":142
+ *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
+ *                 ngram = bytes(utf8_word[i:j])
  *                 ngrams.append(bytes(ngram))
- *             n += 1
  */
       __pyx_t_12 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
       if (__pyx_t_12) {
@@ -2925,49 +2701,68 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
         __pyx_t_9 = __pyx_t_12;
         goto __pyx_L15_bool_binop_done;
       }
-      __pyx_t_14 = ((__pyx_v_n == 1) != 0);
-      if (__pyx_t_14) {
+      __pyx_t_13 = ((__pyx_v_n == 1) != 0);
+      if (__pyx_t_13) {
       } else {
-        __pyx_t_12 = __pyx_t_14;
+        __pyx_t_12 = __pyx_t_13;
         goto __pyx_L17_bool_binop_done;
       }
-      __pyx_t_14 = ((__pyx_v_i == 0) != 0);
-      if (!__pyx_t_14) {
+      __pyx_t_13 = ((__pyx_v_i == 0) != 0);
+      if (!__pyx_t_13) {
       } else {
-        __pyx_t_12 = __pyx_t_14;
+        __pyx_t_12 = __pyx_t_13;
         goto __pyx_L17_bool_binop_done;
       }
-      __pyx_t_14 = ((__pyx_v_j == __pyx_v_num_bytes) != 0);
-      __pyx_t_12 = __pyx_t_14;
+      __pyx_t_13 = ((__pyx_v_j == __pyx_v_num_bytes) != 0);
+      __pyx_t_12 = __pyx_t_13;
       __pyx_L17_bool_binop_done:;
-      __pyx_t_14 = ((!__pyx_t_12) != 0);
-      __pyx_t_9 = __pyx_t_14;
+      __pyx_t_13 = ((!__pyx_t_12) != 0);
+      __pyx_t_9 = __pyx_t_13;
       __pyx_L15_bool_binop_done:;
       if (__pyx_t_9) {
 
-        /* "gensim/models/_utils_any2vec.pyx":156
+        /* "gensim/models/_utils_any2vec.pyx":143
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
- *                 ngrams.append(bytes(ngram))             # <<<<<<<<<<<<<<
+ *                 ngram = bytes(utf8_word[i:j])             # <<<<<<<<<<<<<<
+ *                 ngrams.append(bytes(ngram))
  *             n += 1
- *     return ngrams
  */
-        __pyx_t_1 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 156, __pyx_L1_error)
+        if (unlikely(__pyx_v_utf8_word == Py_None)) {
+          PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
+          __PYX_ERR(0, 143, __pyx_L1_error)
+        }
+        __pyx_t_1 = PySequence_GetSlice(__pyx_v_utf8_word, __pyx_v_i, __pyx_v_j); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 143, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_1); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 156, __pyx_L1_error)
+        __pyx_t_4 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 143, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_4);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_4));
+        __pyx_t_4 = 0;
+
+        /* "gensim/models/_utils_any2vec.pyx":144
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+ *                 ngram = bytes(utf8_word[i:j])
+ *                 ngrams.append(bytes(ngram))             # <<<<<<<<<<<<<<
+ *             n += 1
+ *     return ngrams
+ */
+        __pyx_t_4 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 144, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_4);
+        __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_4); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 144, __pyx_L1_error)
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-        /* "gensim/models/_utils_any2vec.pyx":155
- *                 ngram.append(utf8_word[j])
+        /* "gensim/models/_utils_any2vec.pyx":142
+ *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
+ *                 ngram = bytes(utf8_word[i:j])
  *                 ngrams.append(bytes(ngram))
- *             n += 1
  */
       }
 
-      /* "gensim/models/_utils_any2vec.pyx":157
- *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+      /* "gensim/models/_utils_any2vec.pyx":145
+ *                 ngram = bytes(utf8_word[i:j])
  *                 ngrams.append(bytes(ngram))
  *             n += 1             # <<<<<<<<<<<<<<
  *     return ngrams
@@ -2977,7 +2772,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
     __pyx_L3_continue:;
   }
 
-  /* "gensim/models/_utils_any2vec.pyx":158
+  /* "gensim/models/_utils_any2vec.pyx":146
  *                 ngrams.append(bytes(ngram))
  *             n += 1
  *     return ngrams             # <<<<<<<<<<<<<<
@@ -2987,7 +2782,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   __pyx_r = __pyx_v_ngrams;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":113
+  /* "gensim/models/_utils_any2vec.pyx":104
  * 
  * 
  * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -3046,17 +2841,17 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 1); __PYX_ERR(0, 113, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 1); __PYX_ERR(0, 104, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 2); __PYX_ERR(0, 113, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 2); __PYX_ERR(0, 104, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes") < 0)) __PYX_ERR(0, 113, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes") < 0)) __PYX_ERR(0, 104, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -3066,12 +2861,12 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
     }
     __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L3_error)
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 104, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 104, __pyx_L3_error)
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 113, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 104, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -3090,7 +2885,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 113, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -5525,224 +5320,6 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
   return __pyx_r;
 }
 
-/* "cfunc.to_py":65
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
- *     def wrap(object b):             # <<<<<<<<<<<<<<
- *         """wrap(b)"""
- *         return f(b)
- */
-
-/* Python wrapper */
-static PyObject *__pyx_pw_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /*proto*/
-static char __pyx_doc_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap[] = "wrap(b)";
-static PyMethodDef __pyx_mdef_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap = {"wrap", (PyCFunction)__pyx_pw_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap, METH_O, __pyx_doc_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap};
-static PyObject *__pyx_pw_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap(PyObject *__pyx_self, PyObject *__pyx_v_b) {
-  PyObject *__pyx_r = 0;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("wrap (wrapper)", 0);
-  __pyx_r = __pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(__pyx_self, ((PyObject *)__pyx_v_b));
-
-  /* function exit code */
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b) {
-  struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_cur_scope;
-  struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_outer_scope;
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  __Pyx_RefNannySetupContext("wrap", 0);
-  __pyx_outer_scope = (struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *) __Pyx_CyFunction_GetClosure(__pyx_self);
-  __pyx_cur_scope = __pyx_outer_scope;
-
-  /* "cfunc.to_py":67
- *     def wrap(object b):
- *         """wrap(b)"""
- *         return f(b)             # <<<<<<<<<<<<<<
- *     return wrap
- * 
- */
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_cur_scope->__pyx_v_f(__pyx_v_b); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 67, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_r = __pyx_t_1;
-  __pyx_t_1 = 0;
-  goto __pyx_L0;
-
-  /* "cfunc.to_py":65
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
- *     def wrap(object b):             # <<<<<<<<<<<<<<
- *         """wrap(b)"""
- *         return f(b)
- */
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("cfunc.to_py.__Pyx_CFunc_object____object___to_py.wrap", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = NULL;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "cfunc.to_py":64
- * 
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
- *     def wrap(object b):
- *         """wrap(b)"""
- */
-
-static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*__pyx_v_f)(PyObject *)) {
-  struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_cur_scope;
-  PyObject *__pyx_v_wrap = 0;
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  __Pyx_RefNannySetupContext("__Pyx_CFunc_object____object___to_py", 0);
-  __pyx_cur_scope = (struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(__pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py, __pyx_empty_tuple, NULL);
-  if (unlikely(!__pyx_cur_scope)) {
-    __pyx_cur_scope = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)Py_None);
-    __Pyx_INCREF(Py_None);
-    __PYX_ERR(2, 64, __pyx_L1_error)
-  } else {
-    __Pyx_GOTREF(__pyx_cur_scope);
-  }
-  __pyx_cur_scope->__pyx_v_f = __pyx_v_f;
-
-  /* "cfunc.to_py":65
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
- *     def wrap(object b):             # <<<<<<<<<<<<<<
- *         """wrap(b)"""
- *         return f(b)
- */
-  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap, 0, __pyx_n_s_Pyx_CFunc_object____object___t, ((PyObject*)__pyx_cur_scope), __pyx_n_s_cfunc_to_py, __pyx_d, ((PyObject *)__pyx_codeobj__11)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 65, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_v_wrap = __pyx_t_1;
-  __pyx_t_1 = 0;
-
-  /* "cfunc.to_py":68
- *         """wrap(b)"""
- *         return f(b)
- *     return wrap             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __Pyx_XDECREF(__pyx_r);
-  __Pyx_INCREF(__pyx_v_wrap);
-  __pyx_r = __pyx_v_wrap;
-  goto __pyx_L0;
-
-  /* "cfunc.to_py":64
- * 
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
- *     def wrap(object b):
- *         """wrap(b)"""
- */
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("cfunc.to_py.__Pyx_CFunc_object____object___to_py", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = 0;
-  __pyx_L0:;
-  __Pyx_XDECREF(__pyx_v_wrap);
-  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
-
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py));
-    (void) PyObject_INIT(o, t);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
-  }
-  return o;
-}
-
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
-  }
-}
-
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
-  PyVarObject_HEAD_INIT(0, 0)
-  "gensim.models._utils_any2vec.__pyx_scope_struct____Pyx_CFunc_object____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py), /*tp_basicsize*/
-  0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_dealloc*/
-  0, /*tp_print*/
-  0, /*tp_getattr*/
-  0, /*tp_setattr*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*tp_compare*/
-  #endif
-  #if PY_MAJOR_VERSION >= 3
-  0, /*tp_as_async*/
-  #endif
-  0, /*tp_repr*/
-  0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
-  0, /*tp_hash*/
-  0, /*tp_call*/
-  0, /*tp_str*/
-  0, /*tp_getattro*/
-  0, /*tp_setattro*/
-  0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER, /*tp_flags*/
-  0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
-  0, /*tp_richcompare*/
-  0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
-  0, /*tp_iternext*/
-  0, /*tp_methods*/
-  0, /*tp_members*/
-  0, /*tp_getset*/
-  0, /*tp_base*/
-  0, /*tp_dict*/
-  0, /*tp_descr_get*/
-  0, /*tp_descr_set*/
-  0, /*tp_dictoffset*/
-  0, /*tp_init*/
-  0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_new*/
-  0, /*tp_free*/
-  0, /*tp_is_gc*/
-  0, /*tp_bases*/
-  0, /*tp_mro*/
-  0, /*tp_cache*/
-  0, /*tp_subclasses*/
-  0, /*tp_weaklist*/
-  0, /*tp_del*/
-  0, /*tp_version_tag*/
-  #if PY_VERSION_HEX >= 0x030400a1
-  0, /*tp_finalize*/
-  #endif
-};
-
 static PyMethodDef __pyx_methods[] = {
   {"ft_hash_bytes", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash_bytes},
   {"ft_hash_broken", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_broken},
@@ -5801,13 +5378,9 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_MB_START, __pyx_k_MB_START, sizeof(__pyx_k_MB_START), 0, 0, 1, 1},
   {&__pyx_kp_u_Non_native_byte_order_not_suppor, __pyx_k_Non_native_byte_order_not_suppor, sizeof(__pyx_k_Non_native_byte_order_not_suppor), 0, 1, 0, 0},
   {&__pyx_n_s_PY2, __pyx_k_PY2, sizeof(__pyx_k_PY2), 0, 0, 1, 1},
-  {&__pyx_n_s_Pyx_CFunc_object____object___t, __pyx_k_Pyx_CFunc_object____object___t, sizeof(__pyx_k_Pyx_CFunc_object____object___t), 0, 0, 1, 1},
   {&__pyx_n_s_RuntimeError, __pyx_k_RuntimeError, sizeof(__pyx_k_RuntimeError), 0, 0, 1, 1},
   {&__pyx_n_s_ValueError, __pyx_k_ValueError, sizeof(__pyx_k_ValueError), 0, 0, 1, 1},
   {&__pyx_kp_u__2, __pyx_k__2, sizeof(__pyx_k__2), 0, 1, 0, 0},
-  {&__pyx_n_s_b, __pyx_k_b, sizeof(__pyx_k_b), 0, 0, 1, 1},
-  {&__pyx_n_s_byte_to_int, __pyx_k_byte_to_int, sizeof(__pyx_k_byte_to_int), 0, 0, 1, 1},
-  {&__pyx_n_s_cfunc_to_py, __pyx_k_cfunc_to_py, sizeof(__pyx_k_cfunc_to_py), 0, 0, 1, 1},
   {&__pyx_n_s_cline_in_traceback, __pyx_k_cline_in_traceback, sizeof(__pyx_k_cline_in_traceback), 0, 0, 1, 1},
   {&__pyx_n_s_import, __pyx_k_import, sizeof(__pyx_k_import), 0, 0, 1, 1},
   {&__pyx_n_s_main, __pyx_k_main, sizeof(__pyx_k_main), 0, 0, 1, 1},
@@ -5822,15 +5395,13 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_s_numpy_core_umath_failed_to_impor, __pyx_k_numpy_core_umath_failed_to_impor, sizeof(__pyx_k_numpy_core_umath_failed_to_impor), 0, 0, 1, 0},
   {&__pyx_n_s_range, __pyx_k_range, sizeof(__pyx_k_range), 0, 0, 1, 1},
   {&__pyx_n_s_six, __pyx_k_six, sizeof(__pyx_k_six), 0, 0, 1, 1},
-  {&__pyx_kp_s_stringsource, __pyx_k_stringsource, sizeof(__pyx_k_stringsource), 0, 0, 1, 0},
   {&__pyx_n_s_test, __pyx_k_test, sizeof(__pyx_k_test), 0, 0, 1, 1},
   {&__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_k_unknown_dtype_code_in_numpy_pxd, sizeof(__pyx_k_unknown_dtype_code_in_numpy_pxd), 0, 1, 0, 0},
   {&__pyx_n_s_word, __pyx_k_word, sizeof(__pyx_k_word), 0, 0, 1, 1},
-  {&__pyx_n_s_wrap, __pyx_k_wrap, sizeof(__pyx_k_wrap), 0, 0, 1, 1},
   {0, 0, 0, 0, 0, 0, 0}
 };
 static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 91, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 272, __pyx_L1_error)
   __pyx_builtin_RuntimeError = __Pyx_GetBuiltinName(__pyx_n_s_RuntimeError); if (!__pyx_builtin_RuntimeError) __PYX_ERR(1, 856, __pyx_L1_error)
   __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(1, 1038, __pyx_L1_error)
@@ -5919,18 +5490,6 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __pyx_tuple__9 = PyTuple_Pack(1, __pyx_kp_s_numpy_core_umath_failed_to_impor); if (unlikely(!__pyx_tuple__9)) __PYX_ERR(1, 1044, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__9);
   __Pyx_GIVEREF(__pyx_tuple__9);
-
-  /* "cfunc.to_py":65
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
- *     def wrap(object b):             # <<<<<<<<<<<<<<
- *         """wrap(b)"""
- *         return f(b)
- */
-  __pyx_tuple__10 = PyTuple_Pack(1, __pyx_n_s_b); if (unlikely(!__pyx_tuple__10)) __PYX_ERR(2, 65, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__10);
-  __Pyx_GIVEREF(__pyx_tuple__10);
-  __pyx_codeobj__11 = (PyObject*)__Pyx_PyCode_New(1, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__10, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_wrap, 65, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__11)) __PYX_ERR(2, 65, __pyx_L1_error)
   __Pyx_RefNannyFinishContext();
   return 0;
   __pyx_L1_error:;
@@ -5985,17 +5544,8 @@ static int __Pyx_modinit_type_init_code(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_modinit_type_init_code", 0);
   /*--- Type init code ---*/
-  if (PyType_Ready(&__pyx_scope_struct____Pyx_CFunc_object____object___to_py) < 0) __PYX_ERR(2, 64, __pyx_L1_error)
-  __pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_print = 0;
-  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_dictoffset && __pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_getattro == PyObject_GenericGetAttr)) {
-    __pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_getattro = __Pyx_PyObject_GenericGetAttrNoDict;
-  }
-  __pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py = &__pyx_scope_struct____Pyx_CFunc_object____object___to_py;
   __Pyx_RefNannyFinishContext();
   return 0;
-  __pyx_L1_error:;
-  __Pyx_RefNannyFinishContext();
-  return -1;
 }
 
 static int __Pyx_modinit_type_import_code(void) {
@@ -6003,7 +5553,7 @@ static int __Pyx_modinit_type_import_code(void) {
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("__Pyx_modinit_type_import_code", 0);
   /*--- Type import code ---*/
-  __pyx_t_1 = PyImport_ImportModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_t_1)) __PYX_ERR(3, 9, __pyx_L1_error)
+  __pyx_t_1 = PyImport_ImportModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 9, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_ptype_7cpython_4type_type = __Pyx_ImportType(__pyx_t_1, __Pyx_BUILTIN_MODULE_NAME, "type", 
   #if defined(PYPY_VERSION_NUM) && PYPY_VERSION_NUM < 0x050B0000
@@ -6012,7 +5562,7 @@ static int __Pyx_modinit_type_import_code(void) {
   sizeof(PyHeapTypeObject),
   #endif
   __Pyx_ImportType_CheckSize_Warn);
-   if (!__pyx_ptype_7cpython_4type_type) __PYX_ERR(3, 9, __pyx_L1_error)
+   if (!__pyx_ptype_7cpython_4type_type) __PYX_ERR(2, 9, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = PyImport_ImportModule("numpy"); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 206, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
@@ -6145,7 +5695,6 @@ static CYTHON_SMALL_CODE int __pyx_pymod_exec__utils_any2vec(PyObject *__pyx_pyi
 {
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
-  int __pyx_t_3;
   __Pyx_RefNannyDeclarations
   #if CYTHON_PEP489_MULTI_PHASE_INIT
   if (__pyx_m) {
@@ -6242,7 +5791,7 @@ if (!__Pyx_RefNanny) {
   (void)__Pyx_modinit_global_init_code();
   (void)__Pyx_modinit_variable_export_code();
   (void)__Pyx_modinit_function_export_code();
-  if (unlikely(__Pyx_modinit_type_init_code() != 0)) goto __pyx_L1_error;
+  (void)__Pyx_modinit_type_init_code();
   if (unlikely(__Pyx_modinit_type_import_code() != 0)) goto __pyx_L1_error;
   (void)__Pyx_modinit_variable_import_code();
   (void)__Pyx_modinit_function_import_code();
@@ -6284,48 +5833,23 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_2) < 0) __PYX_ERR(0, 18, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":28
- *     return ord(b)
+  /* "gensim/models/_utils_any2vec.pyx":100
+ * # as opposed to a new character.
+ * #
+ * _MB_MASK = 0xC0             # <<<<<<<<<<<<<<
+ * _MB_START = 0x80
  * 
- * _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3             # <<<<<<<<<<<<<<
+ */
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_MASK, __pyx_int_192) < 0) __PYX_ERR(0, 100, __pyx_L1_error)
+
+  /* "gensim/models/_utils_any2vec.pyx":101
+ * #
+ * _MB_MASK = 0xC0
+ * _MB_START = 0x80             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 28, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) __PYX_ERR(0, 28, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  if (__pyx_t_3) {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 28, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = __pyx_t_1;
-    __pyx_t_1 = 0;
-  } else {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__byte_to_int_py3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 28, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = __pyx_t_1;
-    __pyx_t_1 = 0;
-  }
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_byte_to_int, __pyx_t_2) < 0) __PYX_ERR(0, 28, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-
-  /* "gensim/models/_utils_any2vec.pyx":109
- * # as opposed to a new character.
- * #
- * _MB_MASK = 0xC0             # <<<<<<<<<<<<<<
- * _MB_START = 0x80
- * 
- */
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_MASK, __pyx_int_192) < 0) __PYX_ERR(0, 109, __pyx_L1_error)
-
-  /* "gensim/models/_utils_any2vec.pyx":110
- * #
- * _MB_MASK = 0xC0
- * _MB_START = 0x80             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_START, __pyx_int_128) < 0) __PYX_ERR(0, 110, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_START, __pyx_int_128) < 0) __PYX_ERR(0, 101, __pyx_L1_error)
 
   /* "gensim/models/_utils_any2vec.pyx":1
  * #!/usr/bin/env cython             # <<<<<<<<<<<<<<
@@ -6337,12 +5861,12 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_2) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cfunc.to_py":64
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
+ *         raise ImportError("numpy.core.umath failed to import")
  * 
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
- *     def wrap(object b):
- *         """wrap(b)"""
+ * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
+ *     try:
+ *         _import_umath()
  */
 
   /*--- Wrapped vars code ---*/
@@ -6416,6 +5940,43 @@ static PyObject *__Pyx_GetBuiltinName(PyObject *name) {
     return result;
 }
 
+/* ArgTypeTest */
+static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
+{
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
+    }
+    else if (exact) {
+        #if PY_MAJOR_VERSION == 2
+        if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1;
+        #endif
+    }
+    else {
+        if (likely(__Pyx_TypeCheck(obj, type))) return 1;
+    }
+    PyErr_Format(PyExc_TypeError,
+        "Argument '%.200s' has incorrect type (expected %.200s, got %.200s)",
+        name, type->tp_name, Py_TYPE(obj)->tp_name);
+    return 0;
+}
+
+/* unicode_iter */
+static CYTHON_INLINE int __Pyx_init_unicode_iteration(
+    PyObject* ustring, Py_ssize_t *length, void** data, int *kind) {
+#if CYTHON_PEP393_ENABLED
+    if (unlikely(__Pyx_PyUnicode_READY(ustring) < 0)) return -1;
+    *kind   = PyUnicode_KIND(ustring);
+    *length = PyUnicode_GET_LENGTH(ustring);
+    *data   = PyUnicode_DATA(ustring);
+#else
+    *kind   = 0;
+    *length = PyUnicode_GET_SIZE(ustring);
+    *data   = (void*)PyUnicode_AS_UNICODE(ustring);
+#endif
+    return 0;
+}
+
 /* UnicodeAsUCS4 */
 static CYTHON_INLINE Py_UCS4 __Pyx_PyUnicode_AsPy_UCS4(PyObject* x) {
    Py_ssize_t length;
@@ -6476,43 +6037,6 @@ static long __Pyx__PyObject_Ord(PyObject* c) {
     return (long)(Py_UCS4)-1;
 }
 
-/* ArgTypeTest */
-static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
-{
-    if (unlikely(!type)) {
-        PyErr_SetString(PyExc_SystemError, "Missing type object");
-        return 0;
-    }
-    else if (exact) {
-        #if PY_MAJOR_VERSION == 2
-        if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1;
-        #endif
-    }
-    else {
-        if (likely(__Pyx_TypeCheck(obj, type))) return 1;
-    }
-    PyErr_Format(PyExc_TypeError,
-        "Argument '%.200s' has incorrect type (expected %.200s, got %.200s)",
-        name, type->tp_name, Py_TYPE(obj)->tp_name);
-    return 0;
-}
-
-/* unicode_iter */
-static CYTHON_INLINE int __Pyx_init_unicode_iteration(
-    PyObject* ustring, Py_ssize_t *length, void** data, int *kind) {
-#if CYTHON_PEP393_ENABLED
-    if (unlikely(__Pyx_PyUnicode_READY(ustring) < 0)) return -1;
-    *kind   = PyUnicode_KIND(ustring);
-    *length = PyUnicode_GET_LENGTH(ustring);
-    *data   = PyUnicode_DATA(ustring);
-#else
-    *kind   = 0;
-    *length = PyUnicode_GET_SIZE(ustring);
-    *data   = (void*)PyUnicode_AS_UNICODE(ustring);
-#endif
-    return 0;
-}
-
 /* JoinPyUnicode */
 static PyObject* __Pyx_PyUnicode_Join(PyObject* value_tuple, Py_ssize_t value_count, Py_ssize_t result_ulength,
                                       CYTHON_UNUSED Py_UCS4 max_char) {
@@ -7602,681 +7126,6 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     return -1;
 }
 
-/* FetchCommonType */
-static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
-    PyObject* fake_module;
-    PyTypeObject* cached_type = NULL;
-    fake_module = PyImport_AddModule((char*) "_cython_" CYTHON_ABI);
-    if (!fake_module) return NULL;
-    Py_INCREF(fake_module);
-    cached_type = (PyTypeObject*) PyObject_GetAttrString(fake_module, type->tp_name);
-    if (cached_type) {
-        if (!PyType_Check((PyObject*)cached_type)) {
-            PyErr_Format(PyExc_TypeError,
-                "Shared Cython type %.200s is not a type object",
-                type->tp_name);
-            goto bad;
-        }
-        if (cached_type->tp_basicsize != type->tp_basicsize) {
-            PyErr_Format(PyExc_TypeError,
-                "Shared Cython type %.200s has the wrong size, try recompiling",
-                type->tp_name);
-            goto bad;
-        }
-    } else {
-        if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
-        PyErr_Clear();
-        if (PyType_Ready(type) < 0) goto bad;
-        if (PyObject_SetAttrString(fake_module, type->tp_name, (PyObject*) type) < 0)
-            goto bad;
-        Py_INCREF(type);
-        cached_type = type;
-    }
-done:
-    Py_DECREF(fake_module);
-    return cached_type;
-bad:
-    Py_XDECREF(cached_type);
-    cached_type = NULL;
-    goto done;
-}
-
-/* CythonFunction */
-#include <structmember.h>
-static PyObject *
-__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
-{
-    if (unlikely(op->func_doc == NULL)) {
-        if (op->func.m_ml->ml_doc) {
-#if PY_MAJOR_VERSION >= 3
-            op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc);
-#else
-            op->func_doc = PyString_FromString(op->func.m_ml->ml_doc);
-#endif
-            if (unlikely(op->func_doc == NULL))
-                return NULL;
-        } else {
-            Py_INCREF(Py_None);
-            return Py_None;
-        }
-    }
-    Py_INCREF(op->func_doc);
-    return op->func_doc;
-}
-static int
-__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
-{
-    PyObject *tmp = op->func_doc;
-    if (value == NULL) {
-        value = Py_None;
-    }
-    Py_INCREF(value);
-    op->func_doc = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    if (unlikely(op->func_name == NULL)) {
-#if PY_MAJOR_VERSION >= 3
-        op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name);
-#else
-        op->func_name = PyString_InternFromString(op->func.m_ml->ml_name);
-#endif
-        if (unlikely(op->func_name == NULL))
-            return NULL;
-    }
-    Py_INCREF(op->func_name);
-    return op->func_name;
-}
-static int
-__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
-{
-    PyObject *tmp;
-#if PY_MAJOR_VERSION >= 3
-    if (unlikely(value == NULL || !PyUnicode_Check(value)))
-#else
-    if (unlikely(value == NULL || !PyString_Check(value)))
-#endif
-    {
-        PyErr_SetString(PyExc_TypeError,
-                        "__name__ must be set to a string object");
-        return -1;
-    }
-    tmp = op->func_name;
-    Py_INCREF(value);
-    op->func_name = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    Py_INCREF(op->func_qualname);
-    return op->func_qualname;
-}
-static int
-__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
-{
-    PyObject *tmp;
-#if PY_MAJOR_VERSION >= 3
-    if (unlikely(value == NULL || !PyUnicode_Check(value)))
-#else
-    if (unlikely(value == NULL || !PyString_Check(value)))
-#endif
-    {
-        PyErr_SetString(PyExc_TypeError,
-                        "__qualname__ must be set to a string object");
-        return -1;
-    }
-    tmp = op->func_qualname;
-    Py_INCREF(value);
-    op->func_qualname = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure)
-{
-    PyObject *self;
-    self = m->func_closure;
-    if (self == NULL)
-        self = Py_None;
-    Py_INCREF(self);
-    return self;
-}
-static PyObject *
-__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    if (unlikely(op->func_dict == NULL)) {
-        op->func_dict = PyDict_New();
-        if (unlikely(op->func_dict == NULL))
-            return NULL;
-    }
-    Py_INCREF(op->func_dict);
-    return op->func_dict;
-}
-static int
-__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
-{
-    PyObject *tmp;
-    if (unlikely(value == NULL)) {
-        PyErr_SetString(PyExc_TypeError,
-               "function's dictionary may not be deleted");
-        return -1;
-    }
-    if (unlikely(!PyDict_Check(value))) {
-        PyErr_SetString(PyExc_TypeError,
-               "setting function's dictionary to a non-dict");
-        return -1;
-    }
-    tmp = op->func_dict;
-    Py_INCREF(value);
-    op->func_dict = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    Py_INCREF(op->func_globals);
-    return op->func_globals;
-}
-static PyObject *
-__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    Py_INCREF(Py_None);
-    return Py_None;
-}
-static PyObject *
-__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    PyObject* result = (op->func_code) ? op->func_code : Py_None;
-    Py_INCREF(result);
-    return result;
-}
-static int
-__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
-    int result = 0;
-    PyObject *res = op->defaults_getter((PyObject *) op);
-    if (unlikely(!res))
-        return -1;
-    #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
-    Py_INCREF(op->defaults_tuple);
-    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
-    Py_INCREF(op->defaults_kwdict);
-    #else
-    op->defaults_tuple = PySequence_ITEM(res, 0);
-    if (unlikely(!op->defaults_tuple)) result = -1;
-    else {
-        op->defaults_kwdict = PySequence_ITEM(res, 1);
-        if (unlikely(!op->defaults_kwdict)) result = -1;
-    }
-    #endif
-    Py_DECREF(res);
-    return result;
-}
-static int
-__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value, CYTHON_UNUSED void *context) {
-    PyObject* tmp;
-    if (!value) {
-        value = Py_None;
-    } else if (value != Py_None && !PyTuple_Check(value)) {
-        PyErr_SetString(PyExc_TypeError,
-                        "__defaults__ must be set to a tuple object");
-        return -1;
-    }
-    Py_INCREF(value);
-    tmp = op->defaults_tuple;
-    op->defaults_tuple = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context) {
-    PyObject* result = op->defaults_tuple;
-    if (unlikely(!result)) {
-        if (op->defaults_getter) {
-            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
-            result = op->defaults_tuple;
-        } else {
-            result = Py_None;
-        }
-    }
-    Py_INCREF(result);
-    return result;
-}
-static int
-__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value, CYTHON_UNUSED void *context) {
-    PyObject* tmp;
-    if (!value) {
-        value = Py_None;
-    } else if (value != Py_None && !PyDict_Check(value)) {
-        PyErr_SetString(PyExc_TypeError,
-                        "__kwdefaults__ must be set to a dict object");
-        return -1;
-    }
-    Py_INCREF(value);
-    tmp = op->defaults_kwdict;
-    op->defaults_kwdict = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context) {
-    PyObject* result = op->defaults_kwdict;
-    if (unlikely(!result)) {
-        if (op->defaults_getter) {
-            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
-            result = op->defaults_kwdict;
-        } else {
-            result = Py_None;
-        }
-    }
-    Py_INCREF(result);
-    return result;
-}
-static int
-__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value, CYTHON_UNUSED void *context) {
-    PyObject* tmp;
-    if (!value || value == Py_None) {
-        value = NULL;
-    } else if (!PyDict_Check(value)) {
-        PyErr_SetString(PyExc_TypeError,
-                        "__annotations__ must be set to a dict object");
-        return -1;
-    }
-    Py_XINCREF(value);
-    tmp = op->func_annotations;
-    op->func_annotations = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context) {
-    PyObject* result = op->func_annotations;
-    if (unlikely(!result)) {
-        result = PyDict_New();
-        if (unlikely(!result)) return NULL;
-        op->func_annotations = result;
-    }
-    Py_INCREF(result);
-    return result;
-}
-static PyGetSetDef __pyx_CyFunction_getsets[] = {
-    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
-    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
-    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
-    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
-    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
-    {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0},
-    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
-    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
-    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
-    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
-    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
-    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
-    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
-    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
-    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
-    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
-    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
-    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
-    {0, 0, 0, 0, 0}
-};
-static PyMemberDef __pyx_CyFunction_members[] = {
-    {(char *) "__module__", T_OBJECT, offsetof(PyCFunctionObject, m_module), PY_WRITE_RESTRICTED, 0},
-    {0, 0, 0,  0, 0}
-};
-static PyObject *
-__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
-{
-#if PY_MAJOR_VERSION >= 3
-    return PyUnicode_FromString(m->func.m_ml->ml_name);
-#else
-    return PyString_FromString(m->func.m_ml->ml_name);
-#endif
-}
-static PyMethodDef __pyx_CyFunction_methods[] = {
-    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
-    {0, 0, 0, 0}
-};
-#if PY_VERSION_HEX < 0x030500A0
-#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
-#else
-#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist)
-#endif
-static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname,
-                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
-    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
-    if (op == NULL)
-        return NULL;
-    op->flags = flags;
-    __Pyx_CyFunction_weakreflist(op) = NULL;
-    op->func.m_ml = ml;
-    op->func.m_self = (PyObject *) op;
-    Py_XINCREF(closure);
-    op->func_closure = closure;
-    Py_XINCREF(module);
-    op->func.m_module = module;
-    op->func_dict = NULL;
-    op->func_name = NULL;
-    Py_INCREF(qualname);
-    op->func_qualname = qualname;
-    op->func_doc = NULL;
-    op->func_classobj = NULL;
-    op->func_globals = globals;
-    Py_INCREF(op->func_globals);
-    Py_XINCREF(code);
-    op->func_code = code;
-    op->defaults_pyobjects = 0;
-    op->defaults = NULL;
-    op->defaults_tuple = NULL;
-    op->defaults_kwdict = NULL;
-    op->defaults_getter = NULL;
-    op->func_annotations = NULL;
-    PyObject_GC_Track(op);
-    return (PyObject *) op;
-}
-static int
-__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
-{
-    Py_CLEAR(m->func_closure);
-    Py_CLEAR(m->func.m_module);
-    Py_CLEAR(m->func_dict);
-    Py_CLEAR(m->func_name);
-    Py_CLEAR(m->func_qualname);
-    Py_CLEAR(m->func_doc);
-    Py_CLEAR(m->func_globals);
-    Py_CLEAR(m->func_code);
-    Py_CLEAR(m->func_classobj);
-    Py_CLEAR(m->defaults_tuple);
-    Py_CLEAR(m->defaults_kwdict);
-    Py_CLEAR(m->func_annotations);
-    if (m->defaults) {
-        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
-        int i;
-        for (i = 0; i < m->defaults_pyobjects; i++)
-            Py_XDECREF(pydefaults[i]);
-        PyObject_Free(m->defaults);
-        m->defaults = NULL;
-    }
-    return 0;
-}
-static void __Pyx__CyFunction_dealloc(__pyx_CyFunctionObject *m)
-{
-    if (__Pyx_CyFunction_weakreflist(m) != NULL)
-        PyObject_ClearWeakRefs((PyObject *) m);
-    __Pyx_CyFunction_clear(m);
-    PyObject_GC_Del(m);
-}
-static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
-{
-    PyObject_GC_UnTrack(m);
-    __Pyx__CyFunction_dealloc(m);
-}
-static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
-{
-    Py_VISIT(m->func_closure);
-    Py_VISIT(m->func.m_module);
-    Py_VISIT(m->func_dict);
-    Py_VISIT(m->func_name);
-    Py_VISIT(m->func_qualname);
-    Py_VISIT(m->func_doc);
-    Py_VISIT(m->func_globals);
-    Py_VISIT(m->func_code);
-    Py_VISIT(m->func_classobj);
-    Py_VISIT(m->defaults_tuple);
-    Py_VISIT(m->defaults_kwdict);
-    if (m->defaults) {
-        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
-        int i;
-        for (i = 0; i < m->defaults_pyobjects; i++)
-            Py_VISIT(pydefaults[i]);
-    }
-    return 0;
-}
-static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
-{
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
-        Py_INCREF(func);
-        return func;
-    }
-    if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) {
-        if (type == NULL)
-            type = (PyObject *)(Py_TYPE(obj));
-        return __Pyx_PyMethod_New(func, type, (PyObject *)(Py_TYPE(type)));
-    }
-    if (obj == Py_None)
-        obj = NULL;
-    return __Pyx_PyMethod_New(func, obj, type);
-}
-static PyObject*
-__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
-{
-#if PY_MAJOR_VERSION >= 3
-    return PyUnicode_FromFormat("<cyfunction %U at %p>",
-                                op->func_qualname, (void *)op);
-#else
-    return PyString_FromFormat("<cyfunction %s at %p>",
-                               PyString_AsString(op->func_qualname), (void *)op);
-#endif
-}
-static PyObject * __Pyx_CyFunction_CallMethod(PyObject *func, PyObject *self, PyObject *arg, PyObject *kw) {
-    PyCFunctionObject* f = (PyCFunctionObject*)func;
-    PyCFunction meth = f->m_ml->ml_meth;
-    Py_ssize_t size;
-    switch (f->m_ml->ml_flags & (METH_VARARGS | METH_KEYWORDS | METH_NOARGS | METH_O)) {
-    case METH_VARARGS:
-        if (likely(kw == NULL || PyDict_Size(kw) == 0))
-            return (*meth)(self, arg);
-        break;
-    case METH_VARARGS | METH_KEYWORDS:
-        return (*(PyCFunctionWithKeywords)(void*)meth)(self, arg, kw);
-    case METH_NOARGS:
-        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
-            size = PyTuple_GET_SIZE(arg);
-            if (likely(size == 0))
-                return (*meth)(self, NULL);
-            PyErr_Format(PyExc_TypeError,
-                "%.200s() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)",
-                f->m_ml->ml_name, size);
-            return NULL;
-        }
-        break;
-    case METH_O:
-        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
-            size = PyTuple_GET_SIZE(arg);
-            if (likely(size == 1)) {
-                PyObject *result, *arg0;
-                #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-                arg0 = PyTuple_GET_ITEM(arg, 0);
-                #else
-                arg0 = PySequence_ITEM(arg, 0); if (unlikely(!arg0)) return NULL;
-                #endif
-                result = (*meth)(self, arg0);
-                #if !(CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS)
-                Py_DECREF(arg0);
-                #endif
-                return result;
-            }
-            PyErr_Format(PyExc_TypeError,
-                "%.200s() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)",
-                f->m_ml->ml_name, size);
-            return NULL;
-        }
-        break;
-    default:
-        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
-                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
-                        "longer supported!");
-        return NULL;
-    }
-    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
-                 f->m_ml->ml_name);
-    return NULL;
-}
-static CYTHON_INLINE PyObject *__Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
-    return __Pyx_CyFunction_CallMethod(func, ((PyCFunctionObject*)func)->m_self, arg, kw);
-}
-static PyObject *__Pyx_CyFunction_CallAsMethod(PyObject *func, PyObject *args, PyObject *kw) {
-    PyObject *result;
-    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *) func;
-    if ((cyfunc->flags & __Pyx_CYFUNCTION_CCLASS) && !(cyfunc->flags & __Pyx_CYFUNCTION_STATICMETHOD)) {
-        Py_ssize_t argc;
-        PyObject *new_args;
-        PyObject *self;
-        argc = PyTuple_GET_SIZE(args);
-        new_args = PyTuple_GetSlice(args, 1, argc);
-        if (unlikely(!new_args))
-            return NULL;
-        self = PyTuple_GetItem(args, 0);
-        if (unlikely(!self)) {
-            Py_DECREF(new_args);
-            return NULL;
-        }
-        result = __Pyx_CyFunction_CallMethod(func, self, new_args, kw);
-        Py_DECREF(new_args);
-    } else {
-        result = __Pyx_CyFunction_Call(func, args, kw);
-    }
-    return result;
-}
-static PyTypeObject __pyx_CyFunctionType_type = {
-    PyVarObject_HEAD_INIT(0, 0)
-    "cython_function_or_method",
-    sizeof(__pyx_CyFunctionObject),
-    0,
-    (destructor) __Pyx_CyFunction_dealloc,
-    0,
-    0,
-    0,
-#if PY_MAJOR_VERSION < 3
-    0,
-#else
-    0,
-#endif
-    (reprfunc) __Pyx_CyFunction_repr,
-    0,
-    0,
-    0,
-    0,
-    __Pyx_CyFunction_CallAsMethod,
-    0,
-    0,
-    0,
-    0,
-    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
-    0,
-    (traverseproc) __Pyx_CyFunction_traverse,
-    (inquiry) __Pyx_CyFunction_clear,
-    0,
-#if PY_VERSION_HEX < 0x030500A0
-    offsetof(__pyx_CyFunctionObject, func_weakreflist),
-#else
-    offsetof(PyCFunctionObject, m_weakreflist),
-#endif
-    0,
-    0,
-    __pyx_CyFunction_methods,
-    __pyx_CyFunction_members,
-    __pyx_CyFunction_getsets,
-    0,
-    0,
-    __Pyx_CyFunction_descr_get,
-    0,
-    offsetof(__pyx_CyFunctionObject, func_dict),
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-#if PY_VERSION_HEX >= 0x030400a1
-    0,
-#endif
-};
-static int __pyx_CyFunction_init(void) {
-    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
-    if (unlikely(__pyx_CyFunctionType == NULL)) {
-        return -1;
-    }
-    return 0;
-}
-static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    m->defaults = PyObject_Malloc(size);
-    if (unlikely(!m->defaults))
-        return PyErr_NoMemory();
-    memset(m->defaults, 0, size);
-    m->defaults_pyobjects = pyobjects;
-    return m->defaults;
-}
-static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    m->defaults_tuple = tuple;
-    Py_INCREF(tuple);
-}
-static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    m->defaults_kwdict = dict;
-    Py_INCREF(dict);
-}
-static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    m->func_annotations = dict;
-    Py_INCREF(dict);
-}
-
-/* PyObject_GenericGetAttrNoDict */
-#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
-static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) {
-    PyErr_Format(PyExc_AttributeError,
-#if PY_MAJOR_VERSION >= 3
-                 "'%.50s' object has no attribute '%U'",
-                 tp->tp_name, attr_name);
-#else
-                 "'%.50s' object has no attribute '%.400s'",
-                 tp->tp_name, PyString_AS_STRING(attr_name));
-#endif
-    return NULL;
-}
-static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) {
-    PyObject *descr;
-    PyTypeObject *tp = Py_TYPE(obj);
-    if (unlikely(!PyString_Check(attr_name))) {
-        return PyObject_GenericGetAttr(obj, attr_name);
-    }
-    assert(!tp->tp_dictoffset);
-    descr = _PyType_Lookup(tp, attr_name);
-    if (unlikely(!descr)) {
-        return __Pyx_RaiseGenericGetAttributeError(tp, attr_name);
-    }
-    Py_INCREF(descr);
-    #if PY_MAJOR_VERSION < 3
-    if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS)))
-    #endif
-    {
-        descrgetfunc f = Py_TYPE(descr)->tp_descr_get;
-        if (unlikely(f)) {
-            PyObject *res = f(descr, obj, (PyObject *)tp);
-            Py_DECREF(descr);
-            return res;
-        }
-    }
-    return descr;
-}
-#endif
-
 /* TypeImport */
 #ifndef __PYX_HAVE_RT_ImportType
 #define __PYX_HAVE_RT_ImportType
@@ -8646,37 +7495,6 @@ static void __Pyx_AddTraceback(const char *funcname, int c_line,
         return (target_type) value;\
     }
 
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
-    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(long) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(long) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(long) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(long),
-                                     little, !is_unsigned);
-    }
-}
-
 /* CIntToPy */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value) {
     const uint32_t neg_one = (uint32_t) ((uint32_t) 0 - (uint32_t) 1), const_zero = (uint32_t) 0;
@@ -9678,6 +8496,37 @@ static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
     return (int) -1;
 }
 
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
 /* CIntFromPy */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
     const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index cecd3b0707..94622ad567 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -131,19 +131,16 @@ cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
 
     ngrams = []
     for i in range(num_bytes):
-        ngram = []
-
         if utf8_word[i] & _MB_MASK == _MB_START:
             continue
 
         j, n = i, 1
         while j < num_bytes and n <= max_n:
-            ngram.append(utf8_word[j])
             j += 1
             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
-                ngram.append(utf8_word[j])
                 j += 1
             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+                ngram = bytes(utf8_word[i:j])
                 ngrams.append(bytes(ngram))
             n += 1
     return ngrams
diff --git a/gensim/models/utils_any2vec.py b/gensim/models/utils_any2vec.py
index 9083fa8064..ff697c290a 100644
--- a/gensim/models/utils_any2vec.py
+++ b/gensim/models/utils_any2vec.py
@@ -167,20 +167,17 @@ def _compute_ngrams_bytes_py(word, min_n, max_n):
 
     ngrams = []
     for i in range(num_bytes):
-        ngram = []
-
         if utf8_word[i] & _MB_MASK == _MB_START:
             continue
 
         j, n = i, 1
         while j < num_bytes and n <= max_n:
-            ngram.append(utf8_word[j])
             j += 1
             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
-                ngram.append(utf8_word[j])
                 j += 1
             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
-                ngrams.append(bytes(ngram))
+                ngram = bytes(utf8_word[i:j])
+                ngrams.append(ngram)
             n += 1
     return ngrams
 

From cdab5b6949ccbc6120c8f5ebd7d1d85f8c65a6c6 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Wed, 23 Jan 2019 13:16:58 +1100
Subject: [PATCH 21/32] avoid using fstrings for Py2 compatibility

---
 gensim/models/_utils_any2vec.c   | 546 ++++++++++++++++---------------
 gensim/models/_utils_any2vec.pyx |   2 +-
 gensim/models/utils_any2vec.py   |   2 +-
 3 files changed, 293 insertions(+), 257 deletions(-)

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index 6e7118f529..d4d5caeb09 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -1271,6 +1271,47 @@ static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
     PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
     const char* function_name);
 
+/* PyCFunctionFastCall.proto */
+#if CYTHON_FAST_PYCCALL
+static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
+#else
+#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
+#endif
+
+/* PyFunctionFastCall.proto */
+#if CYTHON_FAST_PYCALL
+#define __Pyx_PyFunction_FastCall(func, args, nargs)\
+    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
+#if 1 || PY_VERSION_HEX < 0x030600B1
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
+#else
+#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
+#endif
+#define __Pyx_BUILD_ASSERT_EXPR(cond)\
+    (sizeof(char [1 - 2*!(cond)]) - 1)
+#ifndef Py_MEMBER_SIZE
+#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
+#endif
+  static size_t __pyx_pyframe_localsplus_offset = 0;
+  #include "frameobject.h"
+  #define __Pxy_PyFrame_Initialize_Offsets()\
+    ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
+     (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
+  #define __Pyx_PyFrame_GetLocalsplus(frame)\
+    (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
+#endif
+
+/* PyObjectCall2Args.proto */
+static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2);
+
+/* PyObjectCallMethO.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
+#endif
+
+/* PyObjectCallOneArg.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
 /* GetItemInt.proto */
 #define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
     (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
@@ -1314,44 +1355,6 @@ static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_ve
 static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
 #endif
 
-/* PyCFunctionFastCall.proto */
-#if CYTHON_FAST_PYCCALL
-static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
-#else
-#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
-#endif
-
-/* PyFunctionFastCall.proto */
-#if CYTHON_FAST_PYCALL
-#define __Pyx_PyFunction_FastCall(func, args, nargs)\
-    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
-#if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
-#else
-#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
-#endif
-#define __Pyx_BUILD_ASSERT_EXPR(cond)\
-    (sizeof(char [1 - 2*!(cond)]) - 1)
-#ifndef Py_MEMBER_SIZE
-#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
-#endif
-  static size_t __pyx_pyframe_localsplus_offset = 0;
-  #include "frameobject.h"
-  #define __Pxy_PyFrame_Initialize_Offsets()\
-    ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
-     (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
-  #define __Pyx_PyFrame_GetLocalsplus(frame)\
-    (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
-#endif
-
-/* PyObjectCallMethO.proto */
-#if CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
-#endif
-
-/* PyObjectCallOneArg.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
-
 /* PyThreadStateGet.proto */
 #if CYTHON_FAST_THREAD_STATE
 #define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
@@ -1678,6 +1681,7 @@ static PyObject *__pyx_builtin_ValueError;
 static PyObject *__pyx_builtin_RuntimeError;
 static PyObject *__pyx_builtin_ImportError;
 static const char __pyx_k_[] = "<";
+static const char __pyx_k_s[] = "<%s>";
 static const char __pyx_k__2[] = ">";
 static const char __pyx_k_np[] = "np";
 static const char __pyx_k_PY2[] = "PY2";
@@ -1690,6 +1694,8 @@ static const char __pyx_k_max_n[] = "max_n";
 static const char __pyx_k_min_n[] = "min_n";
 static const char __pyx_k_numpy[] = "numpy";
 static const char __pyx_k_range[] = "range";
+static const char __pyx_k_utf_8[] = "utf-8";
+static const char __pyx_k_encode[] = "encode";
 static const char __pyx_k_import[] = "__import__";
 static const char __pyx_k_MB_MASK[] = "_MB_MASK";
 static const char __pyx_k_MB_START[] = "_MB_START";
@@ -1718,6 +1724,7 @@ static PyObject *__pyx_n_s_RuntimeError;
 static PyObject *__pyx_n_s_ValueError;
 static PyObject *__pyx_kp_u__2;
 static PyObject *__pyx_n_s_cline_in_traceback;
+static PyObject *__pyx_n_s_encode;
 static PyObject *__pyx_n_s_import;
 static PyObject *__pyx_n_s_main;
 static PyObject *__pyx_n_s_max_n;
@@ -1730,9 +1737,11 @@ static PyObject *__pyx_n_s_numpy;
 static PyObject *__pyx_kp_s_numpy_core_multiarray_failed_to;
 static PyObject *__pyx_kp_s_numpy_core_umath_failed_to_impor;
 static PyObject *__pyx_n_s_range;
+static PyObject *__pyx_kp_s_s;
 static PyObject *__pyx_n_s_six;
 static PyObject *__pyx_n_s_test;
 static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
+static PyObject *__pyx_kp_s_utf_8;
 static PyObject *__pyx_n_s_word;
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
@@ -2475,59 +2484,54 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   PyObject *__pyx_r = NULL;
   __Pyx_RefNannyDeclarations
   PyObject *__pyx_t_1 = NULL;
-  Py_ssize_t __pyx_t_2;
-  Py_UCS4 __pyx_t_3;
-  PyObject *__pyx_t_4 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  Py_ssize_t __pyx_t_4;
   int __pyx_t_5;
   int __pyx_t_6;
   int __pyx_t_7;
-  PyObject *__pyx_t_8 = NULL;
+  int __pyx_t_8;
   int __pyx_t_9;
   int __pyx_t_10;
   int __pyx_t_11;
   int __pyx_t_12;
   int __pyx_t_13;
-  int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
 
   /* "gensim/models/_utils_any2vec.pyx":128
  * 
  *     """
- *     cdef bytes utf8_word = f'<{word}>'.encode("utf-8")             # <<<<<<<<<<<<<<
+ *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")             # <<<<<<<<<<<<<<
  *     cdef int num_bytes = len(utf8_word)
  *     cdef int j, i, n
  */
-  __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = 0;
-  __pyx_t_3 = 127;
-  __Pyx_INCREF(__pyx_kp_u_);
-  __pyx_t_2 += 1;
-  __Pyx_GIVEREF(__pyx_kp_u_);
-  PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_kp_u_);
-  __pyx_t_4 = __Pyx_PyObject_FormatSimple(__pyx_v_word, __pyx_empty_unicode); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 128, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_3 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) > __pyx_t_3) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_4) : __pyx_t_3;
-  __pyx_t_2 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_4);
-  __Pyx_GIVEREF(__pyx_t_4);
-  PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_4);
-  __pyx_t_4 = 0;
-  __Pyx_INCREF(__pyx_kp_u__2);
-  __pyx_t_2 += 1;
-  __Pyx_GIVEREF(__pyx_kp_u__2);
-  PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_kp_u__2);
-  __pyx_t_4 = __Pyx_PyUnicode_Join(__pyx_t_1, 3, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 128, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_4);
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyUnicode_AsUTF8String(((PyObject*)__pyx_t_4)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyString_FormatSafe(__pyx_kp_s_s, __pyx_v_word); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_encode); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = NULL;
+  if (CYTHON_UNPACK_METHODS && likely(PyMethod_Check(__pyx_t_3))) {
+    __pyx_t_2 = PyMethod_GET_SELF(__pyx_t_3);
+    if (likely(__pyx_t_2)) {
+      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_3);
+      __Pyx_INCREF(__pyx_t_2);
+      __Pyx_INCREF(function);
+      __Pyx_DECREF_SET(__pyx_t_3, function);
+    }
+  }
+  __pyx_t_1 = (__pyx_t_2) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_2, __pyx_kp_s_utf_8) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_kp_s_utf_8);
+  __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
+  if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (!(likely(PyBytes_CheckExact(__pyx_t_1))||((__pyx_t_1) == Py_None)||(PyErr_Format(PyExc_TypeError, "Expected %.16s, got %.200s", "bytes", Py_TYPE(__pyx_t_1)->tp_name), 0))) __PYX_ERR(0, 128, __pyx_L1_error)
   __pyx_v_utf8_word = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
   /* "gensim/models/_utils_any2vec.pyx":129
  *     """
- *     cdef bytes utf8_word = f'<{word}>'.encode("utf-8")
+ *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
  *     cdef int num_bytes = len(utf8_word)             # <<<<<<<<<<<<<<
  *     cdef int j, i, n
  * 
@@ -2536,8 +2540,8 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
     PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
     __PYX_ERR(0, 129, __pyx_L1_error)
   }
-  __pyx_t_2 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_2 == ((Py_ssize_t)-1))) __PYX_ERR(0, 129, __pyx_L1_error)
-  __pyx_v_num_bytes = __pyx_t_2;
+  __pyx_t_4 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_4 == ((Py_ssize_t)-1))) __PYX_ERR(0, 129, __pyx_L1_error)
+  __pyx_v_num_bytes = __pyx_t_4;
 
   /* "gensim/models/_utils_any2vec.pyx":132
  *     cdef int j, i, n
@@ -2572,20 +2576,20 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
     __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_i, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_8);
+    __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_2 = PyNumber_And(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_8 < 0)) __PYX_ERR(0, 134, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    if (__pyx_t_9) {
+    if (__pyx_t_8) {
 
       /* "gensim/models/_utils_any2vec.pyx":135
  *     for i in range(num_bytes):
@@ -2612,10 +2616,10 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  *         while j < num_bytes and n <= max_n:
  *             j += 1
  */
-    __pyx_t_10 = __pyx_v_i;
-    __pyx_t_11 = 1;
-    __pyx_v_j = __pyx_t_10;
-    __pyx_v_n = __pyx_t_11;
+    __pyx_t_9 = __pyx_v_i;
+    __pyx_t_10 = 1;
+    __pyx_v_j = __pyx_t_9;
+    __pyx_v_n = __pyx_t_10;
 
     /* "gensim/models/_utils_any2vec.pyx":138
  * 
@@ -2625,16 +2629,16 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
  */
     while (1) {
-      __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
-      if (__pyx_t_12) {
+      __pyx_t_11 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
+      if (__pyx_t_11) {
       } else {
-        __pyx_t_9 = __pyx_t_12;
+        __pyx_t_8 = __pyx_t_11;
         goto __pyx_L8_bool_binop_done;
       }
-      __pyx_t_12 = ((__pyx_v_n <= __pyx_v_max_n) != 0);
-      __pyx_t_9 = __pyx_t_12;
+      __pyx_t_11 = ((__pyx_v_n <= __pyx_v_max_n) != 0);
+      __pyx_t_8 = __pyx_t_11;
       __pyx_L8_bool_binop_done:;
-      if (!__pyx_t_9) break;
+      if (!__pyx_t_8) break;
 
       /* "gensim/models/_utils_any2vec.pyx":139
  *         j, n = i, 1
@@ -2653,30 +2657,30 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  */
       while (1) {
-        __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
-        if (__pyx_t_12) {
+        __pyx_t_11 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
+        if (__pyx_t_11) {
         } else {
-          __pyx_t_9 = __pyx_t_12;
+          __pyx_t_8 = __pyx_t_11;
           goto __pyx_L12_bool_binop_done;
         }
         __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
-        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 140, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_8 = PyNumber_And(__pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 140, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_8);
+        __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_2 = PyNumber_And(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 140, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_1 = PyObject_RichCompare(__pyx_t_8, __pyx_t_4, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
-        __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_12 < 0)) __PYX_ERR(0, 140, __pyx_L1_error)
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_11 < 0)) __PYX_ERR(0, 140, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_9 = __pyx_t_12;
+        __pyx_t_8 = __pyx_t_11;
         __pyx_L12_bool_binop_done:;
-        if (!__pyx_t_9) break;
+        if (!__pyx_t_8) break;
 
         /* "gensim/models/_utils_any2vec.pyx":141
  *             j += 1
@@ -2695,31 +2699,31 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  *                 ngram = bytes(utf8_word[i:j])
  *                 ngrams.append(bytes(ngram))
  */
-      __pyx_t_12 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
-      if (__pyx_t_12) {
+      __pyx_t_11 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
+      if (__pyx_t_11) {
       } else {
-        __pyx_t_9 = __pyx_t_12;
+        __pyx_t_8 = __pyx_t_11;
         goto __pyx_L15_bool_binop_done;
       }
-      __pyx_t_13 = ((__pyx_v_n == 1) != 0);
-      if (__pyx_t_13) {
+      __pyx_t_12 = ((__pyx_v_n == 1) != 0);
+      if (__pyx_t_12) {
       } else {
-        __pyx_t_12 = __pyx_t_13;
+        __pyx_t_11 = __pyx_t_12;
         goto __pyx_L17_bool_binop_done;
       }
-      __pyx_t_13 = ((__pyx_v_i == 0) != 0);
-      if (!__pyx_t_13) {
+      __pyx_t_12 = ((__pyx_v_i == 0) != 0);
+      if (!__pyx_t_12) {
       } else {
-        __pyx_t_12 = __pyx_t_13;
+        __pyx_t_11 = __pyx_t_12;
         goto __pyx_L17_bool_binop_done;
       }
-      __pyx_t_13 = ((__pyx_v_j == __pyx_v_num_bytes) != 0);
-      __pyx_t_12 = __pyx_t_13;
+      __pyx_t_12 = ((__pyx_v_j == __pyx_v_num_bytes) != 0);
+      __pyx_t_11 = __pyx_t_12;
       __pyx_L17_bool_binop_done:;
-      __pyx_t_13 = ((!__pyx_t_12) != 0);
-      __pyx_t_9 = __pyx_t_13;
+      __pyx_t_12 = ((!__pyx_t_11) != 0);
+      __pyx_t_8 = __pyx_t_12;
       __pyx_L15_bool_binop_done:;
-      if (__pyx_t_9) {
+      if (__pyx_t_8) {
 
         /* "gensim/models/_utils_any2vec.pyx":143
  *                 j += 1
@@ -2734,11 +2738,11 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
         }
         __pyx_t_1 = PySequence_GetSlice(__pyx_v_utf8_word, __pyx_v_i, __pyx_v_j); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 143, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_4 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 143, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_4);
+        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 143, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_4));
-        __pyx_t_4 = 0;
+        __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_3));
+        __pyx_t_3 = 0;
 
         /* "gensim/models/_utils_any2vec.pyx":144
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
@@ -2747,10 +2751,10 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  *             n += 1
  *     return ngrams
  */
-        __pyx_t_4 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 144, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_4); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 144, __pyx_L1_error)
-        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 144, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_3); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 144, __pyx_L1_error)
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
         /* "gensim/models/_utils_any2vec.pyx":142
  *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
@@ -2793,8 +2797,8 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   /* function exit code */
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_XDECREF(__pyx_t_4);
-  __Pyx_XDECREF(__pyx_t_8);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_3);
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = 0;
   __pyx_L0:;
@@ -5382,6 +5386,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_ValueError, __pyx_k_ValueError, sizeof(__pyx_k_ValueError), 0, 0, 1, 1},
   {&__pyx_kp_u__2, __pyx_k__2, sizeof(__pyx_k__2), 0, 1, 0, 0},
   {&__pyx_n_s_cline_in_traceback, __pyx_k_cline_in_traceback, sizeof(__pyx_k_cline_in_traceback), 0, 0, 1, 1},
+  {&__pyx_n_s_encode, __pyx_k_encode, sizeof(__pyx_k_encode), 0, 0, 1, 1},
   {&__pyx_n_s_import, __pyx_k_import, sizeof(__pyx_k_import), 0, 0, 1, 1},
   {&__pyx_n_s_main, __pyx_k_main, sizeof(__pyx_k_main), 0, 0, 1, 1},
   {&__pyx_n_s_max_n, __pyx_k_max_n, sizeof(__pyx_k_max_n), 0, 0, 1, 1},
@@ -5394,9 +5399,11 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_s_numpy_core_multiarray_failed_to, __pyx_k_numpy_core_multiarray_failed_to, sizeof(__pyx_k_numpy_core_multiarray_failed_to), 0, 0, 1, 0},
   {&__pyx_kp_s_numpy_core_umath_failed_to_impor, __pyx_k_numpy_core_umath_failed_to_impor, sizeof(__pyx_k_numpy_core_umath_failed_to_impor), 0, 0, 1, 0},
   {&__pyx_n_s_range, __pyx_k_range, sizeof(__pyx_k_range), 0, 0, 1, 1},
+  {&__pyx_kp_s_s, __pyx_k_s, sizeof(__pyx_k_s), 0, 0, 1, 0},
   {&__pyx_n_s_six, __pyx_k_six, sizeof(__pyx_k_six), 0, 0, 1, 1},
   {&__pyx_n_s_test, __pyx_k_test, sizeof(__pyx_k_test), 0, 0, 1, 1},
   {&__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_k_unknown_dtype_code_in_numpy_pxd, sizeof(__pyx_k_unknown_dtype_code_in_numpy_pxd), 0, 1, 0, 0},
+  {&__pyx_kp_s_utf_8, __pyx_k_utf_8, sizeof(__pyx_k_utf_8), 0, 0, 1, 0},
   {&__pyx_n_s_word, __pyx_k_word, sizeof(__pyx_k_word), 0, 0, 1, 1},
   {0, 0, 0, 0, 0, 0, 0}
 };
@@ -6409,128 +6416,6 @@ static int __Pyx_ParseOptionalKeywords(
     return -1;
 }
 
-/* GetItemInt */
-static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
-    PyObject *r;
-    if (!j) return NULL;
-    r = PyObject_GetItem(o, j);
-    Py_DECREF(j);
-    return r;
-}
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
-                                                              CYTHON_NCP_UNUSED int wraparound,
-                                                              CYTHON_NCP_UNUSED int boundscheck) {
-#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-    Py_ssize_t wrapped_i = i;
-    if (wraparound & unlikely(i < 0)) {
-        wrapped_i += PyList_GET_SIZE(o);
-    }
-    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyList_GET_SIZE(o)))) {
-        PyObject *r = PyList_GET_ITEM(o, wrapped_i);
-        Py_INCREF(r);
-        return r;
-    }
-    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
-#else
-    return PySequence_GetItem(o, i);
-#endif
-}
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
-                                                              CYTHON_NCP_UNUSED int wraparound,
-                                                              CYTHON_NCP_UNUSED int boundscheck) {
-#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-    Py_ssize_t wrapped_i = i;
-    if (wraparound & unlikely(i < 0)) {
-        wrapped_i += PyTuple_GET_SIZE(o);
-    }
-    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyTuple_GET_SIZE(o)))) {
-        PyObject *r = PyTuple_GET_ITEM(o, wrapped_i);
-        Py_INCREF(r);
-        return r;
-    }
-    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
-#else
-    return PySequence_GetItem(o, i);
-#endif
-}
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, int is_list,
-                                                     CYTHON_NCP_UNUSED int wraparound,
-                                                     CYTHON_NCP_UNUSED int boundscheck) {
-#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
-    if (is_list || PyList_CheckExact(o)) {
-        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
-        if ((!boundscheck) || (likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o))))) {
-            PyObject *r = PyList_GET_ITEM(o, n);
-            Py_INCREF(r);
-            return r;
-        }
-    }
-    else if (PyTuple_CheckExact(o)) {
-        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
-        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyTuple_GET_SIZE(o)))) {
-            PyObject *r = PyTuple_GET_ITEM(o, n);
-            Py_INCREF(r);
-            return r;
-        }
-    } else {
-        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
-        if (likely(m && m->sq_item)) {
-            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
-                Py_ssize_t l = m->sq_length(o);
-                if (likely(l >= 0)) {
-                    i += l;
-                } else {
-                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
-                        return NULL;
-                    PyErr_Clear();
-                }
-            }
-            return m->sq_item(o, i);
-        }
-    }
-#else
-    if (is_list || PySequence_Check(o)) {
-        return PySequence_GetItem(o, i);
-    }
-#endif
-    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
-}
-
-/* GetModuleGlobalName */
-#if CYTHON_USE_DICT_VERSIONS
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
-#else
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
-#endif
-{
-    PyObject *result;
-#if !CYTHON_AVOID_BORROWED_REFS
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
-    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    } else if (unlikely(PyErr_Occurred())) {
-        return NULL;
-    }
-#else
-    result = PyDict_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    }
-#endif
-#else
-    result = PyObject_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    }
-    PyErr_Clear();
-#endif
-    return __Pyx_GetBuiltinName(name);
-}
-
 /* PyCFunctionFastCall */
 #if CYTHON_FAST_PYCCALL
 static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
@@ -6673,6 +6558,35 @@ static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args,
 #endif
 #endif
 
+/* PyObjectCall2Args */
+static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2) {
+    PyObject *args, *result = NULL;
+    #if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(function)) {
+        PyObject *args[2] = {arg1, arg2};
+        return __Pyx_PyFunction_FastCall(function, args, 2);
+    }
+    #endif
+    #if CYTHON_FAST_PYCCALL
+    if (__Pyx_PyFastCFunction_Check(function)) {
+        PyObject *args[2] = {arg1, arg2};
+        return __Pyx_PyCFunction_FastCall(function, args, 2);
+    }
+    #endif
+    args = PyTuple_New(2);
+    if (unlikely(!args)) goto done;
+    Py_INCREF(arg1);
+    PyTuple_SET_ITEM(args, 0, arg1);
+    Py_INCREF(arg2);
+    PyTuple_SET_ITEM(args, 1, arg2);
+    Py_INCREF(function);
+    result = __Pyx_PyObject_Call(function, args, NULL);
+    Py_DECREF(args);
+    Py_DECREF(function);
+done:
+    return result;
+}
+
 /* PyObjectCallMethO */
 #if CYTHON_COMPILING_IN_CPYTHON
 static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
@@ -6733,6 +6647,128 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObjec
 }
 #endif
 
+/* GetItemInt */
+static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
+    PyObject *r;
+    if (!j) return NULL;
+    r = PyObject_GetItem(o, j);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              CYTHON_NCP_UNUSED int wraparound,
+                                                              CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    Py_ssize_t wrapped_i = i;
+    if (wraparound & unlikely(i < 0)) {
+        wrapped_i += PyList_GET_SIZE(o);
+    }
+    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyList_GET_SIZE(o)))) {
+        PyObject *r = PyList_GET_ITEM(o, wrapped_i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              CYTHON_NCP_UNUSED int wraparound,
+                                                              CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    Py_ssize_t wrapped_i = i;
+    if (wraparound & unlikely(i < 0)) {
+        wrapped_i += PyTuple_GET_SIZE(o);
+    }
+    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyTuple_GET_SIZE(o)))) {
+        PyObject *r = PyTuple_GET_ITEM(o, wrapped_i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, int is_list,
+                                                     CYTHON_NCP_UNUSED int wraparound,
+                                                     CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
+        if ((!boundscheck) || (likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o))))) {
+            PyObject *r = PyList_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    }
+    else if (PyTuple_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
+        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
+                        return NULL;
+                    PyErr_Clear();
+                }
+            }
+            return m->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || PySequence_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+/* GetModuleGlobalName */
+#if CYTHON_USE_DICT_VERSIONS
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
+#else
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
+#endif
+{
+    PyObject *result;
+#if !CYTHON_AVOID_BORROWED_REFS
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
+    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    } else if (unlikely(PyErr_Occurred())) {
+        return NULL;
+    }
+#else
+    result = PyDict_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+#endif
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+    PyErr_Clear();
+#endif
+    return __Pyx_GetBuiltinName(name);
+}
+
 /* PyErrFetchRestore */
 #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index 94622ad567..674cfe8146 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -125,7 +125,7 @@ cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
     `Original implementation <https://github.com/facebookresearch/fastText/blob/7842495a4d64c7a3bb4339d45d6e64321d002ed8/src/dictionary.cc#L172>`__
 
     """
-    cdef bytes utf8_word = f'<{word}>'.encode("utf-8")
+    cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
     cdef int num_bytes = len(utf8_word)
     cdef int j, i, n
 
diff --git a/gensim/models/utils_any2vec.py b/gensim/models/utils_any2vec.py
index ff697c290a..0e77840137 100644
--- a/gensim/models/utils_any2vec.py
+++ b/gensim/models/utils_any2vec.py
@@ -161,7 +161,7 @@ def _compute_ngrams_bytes_py(word, min_n, max_n):
     `Original implementation <https://github.com/facebookresearch/fastText/blob/7842495a4d64c7a3bb4339d45d6e64321d002ed8/src/dictionary.cc#L172>`__  # noqa: E501
 
     """
-    utf8_word = f'<{word}>'.encode("utf-8")
+    utf8_word = ('<%s>' % word).encode("utf-8")
     num_bytes = len(utf8_word)
     n = 0
 

From d13e4c95dfe61f179286d04cd7f877631f88e055 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Wed, 23 Jan 2019 13:19:22 +1100
Subject: [PATCH 22/32] flake8

---
 gensim/test/test_utils.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index 82d33470da..3153195092 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -400,13 +400,13 @@ def setUp(self):
                 '<at', 'at\n', 't\nt', '\nth', 'the', 'he>',
                 '<at\n', 'at\nt', 't\nth', '\nthe', 'the>', '<at\nt', 'at\nth', 't\nthe', '\nthe>'
             ],
-           'тест': ['<те', 'тес', 'ест', 'ст>', '<тес', 'тест', 'ест>', '<тест', 'тест>'],
-           'テスト': ['<テス', 'テスト', 'スト>', '<テスト', 'テスト>', '<テスト>'],
-           '試し': ['<試し', '試し>', '<試し>'],
+            'тест': ['<те', 'тес', 'ест', 'ст>', '<тес', 'тест', 'ест>', '<тест', 'тест>'],
+            'テスト': ['<テス', 'テスト', 'スト>', '<テスト', 'テスト>', '<テスト>'],
+            '試し': ['<試し', '試し>', '<試し>'],
             '🚑🚒🚓🚕': [
                 '<🚑🚒', '🚑🚒🚓', '🚒🚓🚕', '🚓🚕>',
                 '<🚑🚒🚓', '🚑🚒🚓🚕', '🚒🚓🚕>', '<🚑🚒🚓🚕', '🚑🚒🚓🚕>'
-            ],
+             ],
         }
         self.expected_bytes = {
             'test': [b'<te', b'<tes', b'<test', b'tes', b'test', b'test>', b'est', b'est>', b'st>'],
@@ -422,7 +422,7 @@ def setUp(self):
             'テスト': [
                 b'<\xe3\x83\x86\xe3\x82\xb9', b'<\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88',
                 b'<\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88>', b'\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88',
-                b'\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88>',b'\xe3\x82\xb9\xe3\x83\x88>'
+                b'\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88>', b'\xe3\x82\xb9\xe3\x83\x88>'
             ],
             '試し': [b'<\xe8\xa9\xa6\xe3\x81\x97', b'<\xe8\xa9\xa6\xe3\x81\x97>', b'\xe8\xa9\xa6\xe3\x81\x97>'],
             '🚑🚒🚓🚕': [

From a412e48b03f51e600591134438a2d8cca621e9ea Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Wed, 23 Jan 2019 14:15:20 +1100
Subject: [PATCH 23/32] more Py2 compatibility

---
 gensim/models/_utils_any2vec.c   | 2012 ++++++++++++++++++++++++------
 gensim/models/_utils_any2vec.pyx |   15 +-
 gensim/models/utils_any2vec.py   |   13 +-
 3 files changed, 1620 insertions(+), 420 deletions(-)

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index d4d5caeb09..ad8cdfe979 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.29.2 */
+/* Generated by Cython 0.29.3 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,8 +7,8 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_29_2"
-#define CYTHON_HEX_VERSION 0x001D02F0
+#define CYTHON_ABI "0_29_3"
+#define CYTHON_HEX_VERSION 0x001D03F0
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -398,7 +398,7 @@
 typedef int Py_tss_t;
 static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
   *key = PyThread_create_key();
-  return 0; // PyThread_create_key reports success always
+  return 0;
 }
 static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
   Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
@@ -421,7 +421,7 @@ static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
 static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   return PyThread_get_key_value(*key);
 }
-#endif // TSS (Thread Specific Storage) API
+#endif
 #if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
 #define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
 #else
@@ -844,10 +844,11 @@ static const char *__pyx_filename;
 static const char *__pyx_f[] = {
   "gensim/models/_utils_any2vec.pyx",
   "__init__.pxd",
+  "stringsource",
   "type.pxd",
 };
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -856,7 +857,7 @@ static const char *__pyx_f[] = {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -865,7 +866,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -874,7 +875,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -883,7 +884,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -892,7 +893,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -901,7 +902,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -910,7 +911,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -919,7 +920,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -928,7 +929,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -937,7 +938,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -946,7 +947,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -955,7 +956,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -964,7 +965,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -973,7 +974,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -982,7 +983,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -991,7 +992,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -1000,7 +1001,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -1009,7 +1010,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1018,7 +1019,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1027,7 +1028,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1061,8 +1062,9 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 
 
 /*--- Type declarations ---*/
+struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1071,7 +1073,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1080,7 +1082,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1089,7 +1091,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -1098,6 +1100,19 @@ typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_complex_t;
 
+/* "cfunc.to_py":64
+ * 
+ * @cname("__Pyx_CFunc_object____object___to_py")
+ * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
+ *     def wrap(object b):
+ *         """wrap(b)"""
+ */
+struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py {
+  PyObject_HEAD
+  PyObject *(*__pyx_v_f)(PyObject *);
+};
+
+
 /* --- Runtime support code (head) --- */
 /* Refnanny.proto */
 #ifndef CYTHON_REFNANNY
@@ -1271,6 +1286,27 @@ static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
     PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
     const char* function_name);
 
+/* GetModuleGlobalName.proto */
+#if CYTHON_USE_DICT_VERSIONS
+#define __Pyx_GetModuleGlobalName(var, name)  {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
+        (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
+        __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
+}
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
+    PY_UINT64_T __pyx_dict_version;\
+    PyObject *__pyx_dict_cached_value;\
+    (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
+}
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
+#else
+#define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
+#endif
+
 /* PyCFunctionFastCall.proto */
 #if CYTHON_FAST_PYCCALL
 static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
@@ -1334,27 +1370,6 @@ static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
 static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
                                                      int is_list, int wraparound, int boundscheck);
 
-/* GetModuleGlobalName.proto */
-#if CYTHON_USE_DICT_VERSIONS
-#define __Pyx_GetModuleGlobalName(var, name)  {\
-    static PY_UINT64_T __pyx_dict_version = 0;\
-    static PyObject *__pyx_dict_cached_value = NULL;\
-    (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
-        (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
-        __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
-    PY_UINT64_T __pyx_dict_version;\
-    PyObject *__pyx_dict_cached_value;\
-    (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
-#else
-#define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
-#endif
-
 /* PyThreadStateGet.proto */
 #if CYTHON_FAST_THREAD_STATE
 #define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
@@ -1449,6 +1464,70 @@ static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
 #endif
 
+/* FetchCommonType.proto */
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type);
+
+/* CythonFunction.proto */
+#define __Pyx_CyFunction_USED 1
+#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
+#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
+#define __Pyx_CYFUNCTION_CCLASS        0x04
+#define __Pyx_CyFunction_GetClosure(f)\
+    (((__pyx_CyFunctionObject *) (f))->func_closure)
+#define __Pyx_CyFunction_GetClassObj(f)\
+    (((__pyx_CyFunctionObject *) (f))->func_classobj)
+#define __Pyx_CyFunction_Defaults(type, f)\
+    ((type *)(((__pyx_CyFunctionObject *) (f))->defaults))
+#define __Pyx_CyFunction_SetDefaultsGetter(f, g)\
+    ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g)
+typedef struct {
+    PyCFunctionObject func;
+#if PY_VERSION_HEX < 0x030500A0
+    PyObject *func_weakreflist;
+#endif
+    PyObject *func_dict;
+    PyObject *func_name;
+    PyObject *func_qualname;
+    PyObject *func_doc;
+    PyObject *func_globals;
+    PyObject *func_code;
+    PyObject *func_closure;
+    PyObject *func_classobj;
+    void *defaults;
+    int defaults_pyobjects;
+    int flags;
+    PyObject *defaults_tuple;
+    PyObject *defaults_kwdict;
+    PyObject *(*defaults_getter)(PyObject *);
+    PyObject *func_annotations;
+} __pyx_CyFunctionObject;
+static PyTypeObject *__pyx_CyFunctionType = 0;
+#define __Pyx_CyFunction_Check(obj)  (__Pyx_TypeCheck(obj, __pyx_CyFunctionType))
+#define __Pyx_CyFunction_NewEx(ml, flags, qualname, self, module, globals, code)\
+    __Pyx_CyFunction_New(__pyx_CyFunctionType, ml, flags, qualname, self, module, globals, code)
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *, PyMethodDef *ml,
+                                      int flags, PyObject* qualname,
+                                      PyObject *self,
+                                      PyObject *module, PyObject *globals,
+                                      PyObject* code);
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
+                                                         size_t size,
+                                                         int pyobjects);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m,
+                                                            PyObject *tuple);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *m,
+                                                             PyObject *dict);
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m,
+                                                              PyObject *dict);
+static int __pyx_CyFunction_init(void);
+
+/* PyObject_GenericGetAttrNoDict.proto */
+#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name);
+#else
+#define __Pyx_PyObject_GenericGetAttrNoDict PyObject_GenericGetAttr
+#endif
+
 /* TypeImport.proto */
 #ifndef __PYX_HAVE_RT_ImportType_proto
 #define __PYX_HAVE_RT_ImportType_proto
@@ -1498,6 +1577,9 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value);
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value);
 
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
+
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
 
@@ -1611,9 +1693,6 @@ static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *);
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
-
 /* CIntFromPy.proto */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
 
@@ -1667,10 +1746,14 @@ static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
 static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/
 
 /* Module declarations from 'gensim.models._utils_any2vec' */
+static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py3(PyObject *); /*proto*/
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py2(PyObject *); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
+static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*)(PyObject *)); /*proto*/
 #define __Pyx_MODULE_NAME "gensim.models._utils_any2vec"
 extern int __pyx_module_is_main_gensim__models___utils_any2vec;
 int __pyx_module_is_main_gensim__models___utils_any2vec = 0;
@@ -1681,6 +1764,7 @@ static PyObject *__pyx_builtin_ValueError;
 static PyObject *__pyx_builtin_RuntimeError;
 static PyObject *__pyx_builtin_ImportError;
 static const char __pyx_k_[] = "<";
+static const char __pyx_k_b[] = "b";
 static const char __pyx_k_s[] = "<%s>";
 static const char __pyx_k__2[] = ">";
 static const char __pyx_k_np[] = "np";
@@ -1690,6 +1774,7 @@ static const char __pyx_k_main[] = "__main__";
 static const char __pyx_k_name[] = "__name__";
 static const char __pyx_k_test[] = "__test__";
 static const char __pyx_k_word[] = "word";
+static const char __pyx_k_wrap[] = "wrap";
 static const char __pyx_k_max_n[] = "max_n";
 static const char __pyx_k_min_n[] = "min_n";
 static const char __pyx_k_numpy[] = "numpy";
@@ -1701,9 +1786,13 @@ static const char __pyx_k_MB_MASK[] = "_MB_MASK";
 static const char __pyx_k_MB_START[] = "_MB_START";
 static const char __pyx_k_ValueError[] = "ValueError";
 static const char __pyx_k_ImportError[] = "ImportError";
+static const char __pyx_k_cfunc_to_py[] = "cfunc.to_py";
 static const char __pyx_k_RuntimeError[] = "RuntimeError";
+static const char __pyx_k_stringsource[] = "stringsource";
+static const char __pyx_k_is_utf8_continue[] = "_is_utf8_continue";
 static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
 static const char __pyx_k_ndarray_is_not_C_contiguous[] = "ndarray is not C contiguous";
+static const char __pyx_k_Pyx_CFunc_object____object___t[] = "__Pyx_CFunc_object____object___to_py.<locals>.wrap";
 static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
 static const char __pyx_k_unknown_dtype_code_in_numpy_pxd[] = "unknown dtype code in numpy.pxd (%d)";
 static const char __pyx_k_Format_string_allocated_too_shor[] = "Format string allocated too short, see comment in numpy.pxd";
@@ -1720,12 +1809,16 @@ static PyObject *__pyx_n_s_MB_MASK;
 static PyObject *__pyx_n_s_MB_START;
 static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
 static PyObject *__pyx_n_s_PY2;
+static PyObject *__pyx_n_s_Pyx_CFunc_object____object___t;
 static PyObject *__pyx_n_s_RuntimeError;
 static PyObject *__pyx_n_s_ValueError;
 static PyObject *__pyx_kp_u__2;
+static PyObject *__pyx_n_s_b;
+static PyObject *__pyx_n_s_cfunc_to_py;
 static PyObject *__pyx_n_s_cline_in_traceback;
 static PyObject *__pyx_n_s_encode;
 static PyObject *__pyx_n_s_import;
+static PyObject *__pyx_n_s_is_utf8_continue;
 static PyObject *__pyx_n_s_main;
 static PyObject *__pyx_n_s_max_n;
 static PyObject *__pyx_n_s_min_n;
@@ -1739,16 +1832,20 @@ static PyObject *__pyx_kp_s_numpy_core_umath_failed_to_impor;
 static PyObject *__pyx_n_s_range;
 static PyObject *__pyx_kp_s_s;
 static PyObject *__pyx_n_s_six;
+static PyObject *__pyx_kp_s_stringsource;
 static PyObject *__pyx_n_s_test;
 static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_kp_s_utf_8;
 static PyObject *__pyx_n_s_word;
+static PyObject *__pyx_n_s_wrap;
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
+static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /* proto */
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_int_0;
 static PyObject *__pyx_int_1;
 static PyObject *__pyx_int_128;
@@ -1760,6 +1857,8 @@ static PyObject *__pyx_tuple__6;
 static PyObject *__pyx_tuple__7;
 static PyObject *__pyx_tuple__8;
 static PyObject *__pyx_tuple__9;
+static PyObject *__pyx_tuple__10;
+static PyObject *__pyx_codeobj__11;
 /* Late includes */
 
 /* "gensim/models/_utils_any2vec.pyx":22
@@ -2465,6 +2564,129 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHO
 }
 
 /* "gensim/models/_utils_any2vec.pyx":104
+ * 
+ * 
+ * cdef _is_utf8_continue_py3(b):             # <<<<<<<<<<<<<<
+ *     return b & _MB_MASK == _MB_START
+ * 
+ */
+
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py3(PyObject *__pyx_v_b) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  __Pyx_RefNannySetupContext("_is_utf8_continue_py3", 0);
+
+  /* "gensim/models/_utils_any2vec.pyx":105
+ * 
+ * cdef _is_utf8_continue_py3(b):
+ *     return b & _MB_MASK == _MB_START             # <<<<<<<<<<<<<<
+ * 
+ * 
+ */
+  __Pyx_XDECREF(__pyx_r);
+  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_2 = PyNumber_And(__pyx_v_b, __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_t_1, Py_EQ); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_r = __pyx_t_3;
+  __pyx_t_3 = 0;
+  goto __pyx_L0;
+
+  /* "gensim/models/_utils_any2vec.pyx":104
+ * 
+ * 
+ * cdef _is_utf8_continue_py3(b):             # <<<<<<<<<<<<<<
+ *     return b & _MB_MASK == _MB_START
+ * 
+ */
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_AddTraceback("gensim.models._utils_any2vec._is_utf8_continue_py3", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "gensim/models/_utils_any2vec.pyx":108
+ * 
+ * 
+ * cdef _is_utf8_continue_py2(b):             # <<<<<<<<<<<<<<
+ *     return ord(b) & _MB_MASK == _MB_START
+ * 
+ */
+
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py2(PyObject *__pyx_v_b) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  long __pyx_t_1;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  PyObject *__pyx_t_4 = NULL;
+  __Pyx_RefNannySetupContext("_is_utf8_continue_py2", 0);
+
+  /* "gensim/models/_utils_any2vec.pyx":109
+ * 
+ * cdef _is_utf8_continue_py2(b):
+ *     return ord(b) & _MB_MASK == _MB_START             # <<<<<<<<<<<<<<
+ * 
+ * 
+ */
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = __Pyx_PyObject_Ord(__pyx_v_b); if (unlikely(__pyx_t_1 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_From_long(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyNumber_And(__pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_r = __pyx_t_2;
+  __pyx_t_2 = 0;
+  goto __pyx_L0;
+
+  /* "gensim/models/_utils_any2vec.pyx":108
+ * 
+ * 
+ * cdef _is_utf8_continue_py2(b):             # <<<<<<<<<<<<<<
+ *     return ord(b) & _MB_MASK == _MB_START
+ * 
+ */
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_4);
+  __Pyx_AddTraceback("gensim.models._utils_any2vec._is_utf8_continue_py2", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "gensim/models/_utils_any2vec.pyx":115
  * 
  * 
  * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2490,24 +2712,25 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   int __pyx_t_5;
   int __pyx_t_6;
   int __pyx_t_7;
-  int __pyx_t_8;
+  PyObject *__pyx_t_8 = NULL;
   int __pyx_t_9;
   int __pyx_t_10;
   int __pyx_t_11;
   int __pyx_t_12;
   int __pyx_t_13;
+  int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":128
+  /* "gensim/models/_utils_any2vec.pyx":139
  * 
  *     """
  *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")             # <<<<<<<<<<<<<<
  *     cdef int num_bytes = len(utf8_word)
  *     cdef int j, i, n
  */
-  __pyx_t_2 = __Pyx_PyString_FormatSafe(__pyx_kp_s_s, __pyx_v_word); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyString_FormatSafe(__pyx_kp_s_s, __pyx_v_word); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 139, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_encode); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_encode); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 139, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_2 = NULL;
@@ -2522,14 +2745,14 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   }
   __pyx_t_1 = (__pyx_t_2) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_2, __pyx_kp_s_utf_8) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_kp_s_utf_8);
   __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
+  if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 139, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  if (!(likely(PyBytes_CheckExact(__pyx_t_1))||((__pyx_t_1) == Py_None)||(PyErr_Format(PyExc_TypeError, "Expected %.16s, got %.200s", "bytes", Py_TYPE(__pyx_t_1)->tp_name), 0))) __PYX_ERR(0, 128, __pyx_L1_error)
+  if (!(likely(PyBytes_CheckExact(__pyx_t_1))||((__pyx_t_1) == Py_None)||(PyErr_Format(PyExc_TypeError, "Expected %.16s, got %.200s", "bytes", Py_TYPE(__pyx_t_1)->tp_name), 0))) __PYX_ERR(0, 139, __pyx_L1_error)
   __pyx_v_utf8_word = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":129
+  /* "gensim/models/_utils_any2vec.pyx":140
  *     """
  *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
  *     cdef int num_bytes = len(utf8_word)             # <<<<<<<<<<<<<<
@@ -2538,28 +2761,28 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
   if (unlikely(__pyx_v_utf8_word == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
-    __PYX_ERR(0, 129, __pyx_L1_error)
+    __PYX_ERR(0, 140, __pyx_L1_error)
   }
-  __pyx_t_4 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_4 == ((Py_ssize_t)-1))) __PYX_ERR(0, 129, __pyx_L1_error)
+  __pyx_t_4 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_4 == ((Py_ssize_t)-1))) __PYX_ERR(0, 140, __pyx_L1_error)
   __pyx_v_num_bytes = __pyx_t_4;
 
-  /* "gensim/models/_utils_any2vec.pyx":132
+  /* "gensim/models/_utils_any2vec.pyx":143
  *     cdef int j, i, n
  * 
  *     ngrams = []             # <<<<<<<<<<<<<<
  *     for i in range(num_bytes):
- *         if utf8_word[i] & _MB_MASK == _MB_START:
+ *         if _is_utf8_continue(utf8_word[i]):
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 143, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_ngrams = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":133
+  /* "gensim/models/_utils_any2vec.pyx":144
  * 
  *     ngrams = []
  *     for i in range(num_bytes):             # <<<<<<<<<<<<<<
- *         if utf8_word[i] & _MB_MASK == _MB_START:
+ *         if _is_utf8_continue(utf8_word[i]):
  *             continue
  */
   __pyx_t_5 = __pyx_v_num_bytes;
@@ -2567,124 +2790,138 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
     __pyx_v_i = __pyx_t_7;
 
-    /* "gensim/models/_utils_any2vec.pyx":134
+    /* "gensim/models/_utils_any2vec.pyx":145
  *     ngrams = []
  *     for i in range(num_bytes):
- *         if utf8_word[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
+ *         if _is_utf8_continue(utf8_word[i]):             # <<<<<<<<<<<<<<
  *             continue
  * 
  */
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_i, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_is_utf8_continue); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = PyNumber_And(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_i, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __pyx_t_8 = NULL;
+    if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_3))) {
+      __pyx_t_8 = PyMethod_GET_SELF(__pyx_t_3);
+      if (likely(__pyx_t_8)) {
+        PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_3);
+        __Pyx_INCREF(__pyx_t_8);
+        __Pyx_INCREF(function);
+        __Pyx_DECREF_SET(__pyx_t_3, function);
+      }
+    }
+    __pyx_t_1 = (__pyx_t_8) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_8, __pyx_t_2) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_t_2);
+    __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 145, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_8 < 0)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    if (__pyx_t_8) {
+    if (__pyx_t_9) {
 
-      /* "gensim/models/_utils_any2vec.pyx":135
+      /* "gensim/models/_utils_any2vec.pyx":146
  *     for i in range(num_bytes):
- *         if utf8_word[i] & _MB_MASK == _MB_START:
+ *         if _is_utf8_continue(utf8_word[i]):
  *             continue             # <<<<<<<<<<<<<<
  * 
  *         j, n = i, 1
  */
       goto __pyx_L3_continue;
 
-      /* "gensim/models/_utils_any2vec.pyx":134
+      /* "gensim/models/_utils_any2vec.pyx":145
  *     ngrams = []
  *     for i in range(num_bytes):
- *         if utf8_word[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
+ *         if _is_utf8_continue(utf8_word[i]):             # <<<<<<<<<<<<<<
  *             continue
  * 
  */
     }
 
-    /* "gensim/models/_utils_any2vec.pyx":137
+    /* "gensim/models/_utils_any2vec.pyx":148
  *             continue
  * 
  *         j, n = i, 1             # <<<<<<<<<<<<<<
  *         while j < num_bytes and n <= max_n:
  *             j += 1
  */
-    __pyx_t_9 = __pyx_v_i;
-    __pyx_t_10 = 1;
-    __pyx_v_j = __pyx_t_9;
-    __pyx_v_n = __pyx_t_10;
+    __pyx_t_10 = __pyx_v_i;
+    __pyx_t_11 = 1;
+    __pyx_v_j = __pyx_t_10;
+    __pyx_v_n = __pyx_t_11;
 
-    /* "gensim/models/_utils_any2vec.pyx":138
+    /* "gensim/models/_utils_any2vec.pyx":149
  * 
  *         j, n = i, 1
  *         while j < num_bytes and n <= max_n:             # <<<<<<<<<<<<<<
  *             j += 1
- *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+ *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
  */
     while (1) {
-      __pyx_t_11 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
-      if (__pyx_t_11) {
+      __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
+      if (__pyx_t_12) {
       } else {
-        __pyx_t_8 = __pyx_t_11;
+        __pyx_t_9 = __pyx_t_12;
         goto __pyx_L8_bool_binop_done;
       }
-      __pyx_t_11 = ((__pyx_v_n <= __pyx_v_max_n) != 0);
-      __pyx_t_8 = __pyx_t_11;
+      __pyx_t_12 = ((__pyx_v_n <= __pyx_v_max_n) != 0);
+      __pyx_t_9 = __pyx_t_12;
       __pyx_L8_bool_binop_done:;
-      if (!__pyx_t_8) break;
+      if (!__pyx_t_9) break;
 
-      /* "gensim/models/_utils_any2vec.pyx":139
+      /* "gensim/models/_utils_any2vec.pyx":150
  *         j, n = i, 1
  *         while j < num_bytes and n <= max_n:
  *             j += 1             # <<<<<<<<<<<<<<
- *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+ *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
  *                 j += 1
  */
       __pyx_v_j = (__pyx_v_j + 1);
 
-      /* "gensim/models/_utils_any2vec.pyx":140
+      /* "gensim/models/_utils_any2vec.pyx":151
  *         while j < num_bytes and n <= max_n:
  *             j += 1
- *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:             # <<<<<<<<<<<<<<
+ *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):             # <<<<<<<<<<<<<<
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  */
       while (1) {
-        __pyx_t_11 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
-        if (__pyx_t_11) {
+        __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
+        if (__pyx_t_12) {
         } else {
-          __pyx_t_8 = __pyx_t_11;
+          __pyx_t_9 = __pyx_t_12;
           goto __pyx_L12_bool_binop_done;
         }
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_1);
-        __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
+        __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_is_utf8_continue); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 151, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_2 = PyNumber_And(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
+        __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 151, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_2);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-        __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
+        __pyx_t_8 = NULL;
+        if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_3))) {
+          __pyx_t_8 = PyMethod_GET_SELF(__pyx_t_3);
+          if (likely(__pyx_t_8)) {
+            PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_3);
+            __Pyx_INCREF(__pyx_t_8);
+            __Pyx_INCREF(function);
+            __Pyx_DECREF_SET(__pyx_t_3, function);
+          }
+        }
+        __pyx_t_1 = (__pyx_t_8) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_8, __pyx_t_2) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_t_2);
+        __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 151, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-        __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_11 < 0)) __PYX_ERR(0, 140, __pyx_L1_error)
+        __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_12 < 0)) __PYX_ERR(0, 151, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_8 = __pyx_t_11;
+        __pyx_t_9 = __pyx_t_12;
         __pyx_L12_bool_binop_done:;
-        if (!__pyx_t_8) break;
+        if (!__pyx_t_9) break;
 
-        /* "gensim/models/_utils_any2vec.pyx":141
+        /* "gensim/models/_utils_any2vec.pyx":152
  *             j += 1
- *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+ *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
  *                 j += 1             # <<<<<<<<<<<<<<
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  *                 ngram = bytes(utf8_word[i:j])
@@ -2692,40 +2929,40 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
         __pyx_v_j = (__pyx_v_j + 1);
       }
 
-      /* "gensim/models/_utils_any2vec.pyx":142
- *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+      /* "gensim/models/_utils_any2vec.pyx":153
+ *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
  *                 ngram = bytes(utf8_word[i:j])
  *                 ngrams.append(bytes(ngram))
  */
-      __pyx_t_11 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
-      if (__pyx_t_11) {
+      __pyx_t_12 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
+      if (__pyx_t_12) {
       } else {
-        __pyx_t_8 = __pyx_t_11;
+        __pyx_t_9 = __pyx_t_12;
         goto __pyx_L15_bool_binop_done;
       }
-      __pyx_t_12 = ((__pyx_v_n == 1) != 0);
-      if (__pyx_t_12) {
+      __pyx_t_13 = ((__pyx_v_n == 1) != 0);
+      if (__pyx_t_13) {
       } else {
-        __pyx_t_11 = __pyx_t_12;
+        __pyx_t_12 = __pyx_t_13;
         goto __pyx_L17_bool_binop_done;
       }
-      __pyx_t_12 = ((__pyx_v_i == 0) != 0);
-      if (!__pyx_t_12) {
+      __pyx_t_13 = ((__pyx_v_i == 0) != 0);
+      if (!__pyx_t_13) {
       } else {
-        __pyx_t_11 = __pyx_t_12;
+        __pyx_t_12 = __pyx_t_13;
         goto __pyx_L17_bool_binop_done;
       }
-      __pyx_t_12 = ((__pyx_v_j == __pyx_v_num_bytes) != 0);
-      __pyx_t_11 = __pyx_t_12;
+      __pyx_t_13 = ((__pyx_v_j == __pyx_v_num_bytes) != 0);
+      __pyx_t_12 = __pyx_t_13;
       __pyx_L17_bool_binop_done:;
-      __pyx_t_12 = ((!__pyx_t_11) != 0);
-      __pyx_t_8 = __pyx_t_12;
+      __pyx_t_13 = ((!__pyx_t_12) != 0);
+      __pyx_t_9 = __pyx_t_13;
       __pyx_L15_bool_binop_done:;
-      if (__pyx_t_8) {
+      if (__pyx_t_9) {
 
-        /* "gensim/models/_utils_any2vec.pyx":143
+        /* "gensim/models/_utils_any2vec.pyx":154
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  *                 ngram = bytes(utf8_word[i:j])             # <<<<<<<<<<<<<<
@@ -2734,30 +2971,30 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
         if (unlikely(__pyx_v_utf8_word == Py_None)) {
           PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-          __PYX_ERR(0, 143, __pyx_L1_error)
+          __PYX_ERR(0, 154, __pyx_L1_error)
         }
-        __pyx_t_1 = PySequence_GetSlice(__pyx_v_utf8_word, __pyx_v_i, __pyx_v_j); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 143, __pyx_L1_error)
+        __pyx_t_1 = PySequence_GetSlice(__pyx_v_utf8_word, __pyx_v_i, __pyx_v_j); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 154, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 143, __pyx_L1_error)
+        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 154, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_3));
         __pyx_t_3 = 0;
 
-        /* "gensim/models/_utils_any2vec.pyx":144
+        /* "gensim/models/_utils_any2vec.pyx":155
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  *                 ngram = bytes(utf8_word[i:j])
  *                 ngrams.append(bytes(ngram))             # <<<<<<<<<<<<<<
  *             n += 1
  *     return ngrams
  */
-        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 144, __pyx_L1_error)
+        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 155, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_13 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_3); if (unlikely(__pyx_t_13 == ((int)-1))) __PYX_ERR(0, 144, __pyx_L1_error)
+        __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_3); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 155, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-        /* "gensim/models/_utils_any2vec.pyx":142
- *             while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+        /* "gensim/models/_utils_any2vec.pyx":153
+ *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
  *                 ngram = bytes(utf8_word[i:j])
@@ -2765,7 +3002,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  */
       }
 
-      /* "gensim/models/_utils_any2vec.pyx":145
+      /* "gensim/models/_utils_any2vec.pyx":156
  *                 ngram = bytes(utf8_word[i:j])
  *                 ngrams.append(bytes(ngram))
  *             n += 1             # <<<<<<<<<<<<<<
@@ -2776,7 +3013,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
     __pyx_L3_continue:;
   }
 
-  /* "gensim/models/_utils_any2vec.pyx":146
+  /* "gensim/models/_utils_any2vec.pyx":157
  *                 ngrams.append(bytes(ngram))
  *             n += 1
  *     return ngrams             # <<<<<<<<<<<<<<
@@ -2786,7 +3023,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   __pyx_r = __pyx_v_ngrams;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":104
+  /* "gensim/models/_utils_any2vec.pyx":115
  * 
  * 
  * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2799,6 +3036,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
   __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_8);
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = 0;
   __pyx_L0:;
@@ -2845,17 +3083,17 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 1); __PYX_ERR(0, 104, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 1); __PYX_ERR(0, 115, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 2); __PYX_ERR(0, 104, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 2); __PYX_ERR(0, 115, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes") < 0)) __PYX_ERR(0, 104, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes") < 0)) __PYX_ERR(0, 115, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -2865,12 +3103,12 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
     }
     __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 104, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 104, __pyx_L3_error)
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 115, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 115, __pyx_L3_error)
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 104, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 115, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2889,7 +3127,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 115, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -2906,7 +3144,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -2955,7 +3193,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
  * 
  *             cdef int i, ndim
  *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -2964,7 +3202,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
  *             cdef int i, ndim
  *             cdef int endian_detector = 1
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -2973,7 +3211,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
  *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
@@ -2982,7 +3220,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -2996,7 +3234,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L4_bool_binop_done;
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -3007,7 +3245,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L4_bool_binop_done:;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3016,7 +3254,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -3029,7 +3267,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 272, __pyx_L1_error)
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3038,7 +3276,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3052,7 +3290,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L7_bool_binop_done;
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -3063,7 +3301,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L7_bool_binop_done:;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3072,7 +3310,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -3085,7 +3323,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 276, __pyx_L1_error)
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3094,7 +3332,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
  *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
@@ -3103,7 +3341,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
  * 
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim             # <<<<<<<<<<<<<<
@@ -3112,7 +3350,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->ndim = __pyx_v_ndim;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3122,7 +3360,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
  *                 # Allocate new buffer for strides and shape info.
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
@@ -3131,7 +3369,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
@@ -3140,7 +3378,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":285
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":285
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -3152,7 +3390,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
@@ -3161,7 +3399,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
       (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]
  *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
@@ -3171,7 +3409,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
     }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3181,7 +3419,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L9;
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
  *                     info.shape[i] = PyArray_DIMS(self)[i]
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
@@ -3191,7 +3429,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":290
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":290
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
@@ -3202,7 +3440,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   }
   __pyx_L9:;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":291
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":291
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -3211,7 +3449,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->suboffsets = NULL;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
@@ -3220,7 +3458,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":293
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":293
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)
  *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
@@ -3229,7 +3467,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
  * 
  *             cdef int t
  *             cdef char* f = NULL             # <<<<<<<<<<<<<<
@@ -3238,7 +3476,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_f = NULL;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             cdef int t
  *             cdef char* f = NULL
  *             cdef dtype descr = <dtype>PyArray_DESCR(self)             # <<<<<<<<<<<<<<
@@ -3251,7 +3489,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":300
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":300
  *             cdef int offset
  * 
  *             info.obj = self             # <<<<<<<<<<<<<<
@@ -3264,7 +3502,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -3274,7 +3512,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":303
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":303
  * 
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num             # <<<<<<<<<<<<<<
@@ -3284,7 +3522,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_4 = __pyx_v_descr->type_num;
     __pyx_v_t = __pyx_t_4;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -3304,7 +3542,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     }
     __pyx_L15_next_or:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":305
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":305
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -3321,7 +3559,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_1 = __pyx_t_2;
     __pyx_L14_bool_binop_done:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -3330,7 +3568,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     if (unlikely(__pyx_t_1)) {
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -3343,7 +3581,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 306, __pyx_L1_error)
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -3352,7 +3590,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":307
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":307
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
@@ -3365,7 +3603,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_UBYTE:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":308
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":308
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
@@ -3376,7 +3614,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_SHORT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":309
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":309
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
@@ -3387,7 +3625,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_USHORT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":310
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":310
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
@@ -3398,7 +3636,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_INT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":311
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":311
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
@@ -3409,7 +3647,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_UINT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":312
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":312
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
@@ -3420,7 +3658,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_LONG:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":313
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":313
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
@@ -3431,7 +3669,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_ULONG:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":314
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":314
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
@@ -3442,7 +3680,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_LONGLONG:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":315
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":315
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
@@ -3453,7 +3691,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_ULONGLONG:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":316
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":316
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
@@ -3464,7 +3702,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_FLOAT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":317
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":317
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
@@ -3475,7 +3713,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_DOUBLE:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":318
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":318
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
@@ -3486,7 +3724,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_LONGDOUBLE:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":319
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":319
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
@@ -3497,7 +3735,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_CFLOAT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":320
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":320
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
@@ -3508,7 +3746,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_CDOUBLE:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":321
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":321
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
@@ -3519,7 +3757,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_CLONGDOUBLE:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":322
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":322
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
@@ -3530,7 +3768,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_OBJECT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":323
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":323
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
@@ -3541,7 +3779,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       default:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":325
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":325
  *                 elif t == NPY_OBJECT:      f = "O"
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -3562,7 +3800,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
     }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":326
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":326
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f             # <<<<<<<<<<<<<<
@@ -3571,7 +3809,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->format = __pyx_v_f;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":327
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":327
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f
  *                 return             # <<<<<<<<<<<<<<
@@ -3581,7 +3819,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_r = 0;
     goto __pyx_L0;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -3590,7 +3828,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":329
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":329
  *                 return
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
@@ -3600,7 +3838,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":330
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":330
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
@@ -3609,7 +3847,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     (__pyx_v_info->format[0]) = '^';
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":331
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":331
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0             # <<<<<<<<<<<<<<
@@ -3618,7 +3856,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_offset = 0;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":332
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":332
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0
  *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
@@ -3628,7 +3866,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_9 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_9 == ((char *)NULL))) __PYX_ERR(1, 332, __pyx_L1_error)
     __pyx_v_f = __pyx_t_9;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":335
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":335
  *                                       info.format + _buffer_format_string_len,
  *                                       &offset)
  *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
@@ -3638,7 +3876,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     (__pyx_v_f[0]) = '\x00';
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -3670,7 +3908,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -3694,7 +3932,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__releasebuffer__", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -3704,7 +3942,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":339
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":339
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
@@ -3713,7 +3951,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->format);
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -3722,7 +3960,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3732,7 +3970,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":341
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":341
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
@@ -3741,7 +3979,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->strides);
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3750,7 +3988,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -3762,7 +4000,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __Pyx_RefNannyFinishContext();
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -3776,7 +4014,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew1", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":822
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":822
  * 
  * cdef inline object PyArray_MultiIterNew1(a):
  *     return PyArray_MultiIterNew(1, <void*>a)             # <<<<<<<<<<<<<<
@@ -3790,7 +4028,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -3809,7 +4047,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -3823,7 +4061,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew2", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)             # <<<<<<<<<<<<<<
@@ -3837,7 +4075,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -3856,7 +4094,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -3870,7 +4108,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew3", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":828
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":828
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)             # <<<<<<<<<<<<<<
@@ -3884,7 +4122,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -3903,7 +4141,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -3917,7 +4155,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew4", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)             # <<<<<<<<<<<<<<
@@ -3931,7 +4169,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -3950,7 +4188,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -3964,7 +4202,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew5", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)             # <<<<<<<<<<<<<<
@@ -3978,7 +4216,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -3997,7 +4235,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -4011,7 +4249,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("PyDataType_SHAPE", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):             # <<<<<<<<<<<<<<
@@ -4021,7 +4259,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   __pyx_t_1 = (PyDataType_HASSUBARRAY(__pyx_v_d) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):
  *         return <tuple>d.subarray.shape             # <<<<<<<<<<<<<<
@@ -4033,7 +4271,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
     __pyx_r = ((PyObject*)__pyx_v_d->subarray->shape);
     goto __pyx_L0;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):             # <<<<<<<<<<<<<<
@@ -4042,7 +4280,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
  */
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
  *         return <tuple>d.subarray.shape
  *     else:
  *         return ()             # <<<<<<<<<<<<<<
@@ -4056,7 +4294,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
     goto __pyx_L0;
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -4071,7 +4309,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -4100,7 +4338,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   char *__pyx_t_9;
   __Pyx_RefNannySetupContext("_util_dtypestring", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
  * 
  *     cdef dtype child
  *     cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -4109,7 +4347,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
  *     cdef dtype child
  *     cdef int endian_detector = 1
  *     cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -4118,7 +4356,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -4141,7 +4379,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __Pyx_XDECREF_SET(__pyx_v_childname, __pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
  * 
  *     for childname in descr.names:
  *         fields = descr.fields[childname]             # <<<<<<<<<<<<<<
@@ -4158,7 +4396,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __Pyx_XDECREF_SET(__pyx_v_fields, ((PyObject*)__pyx_t_3));
     __pyx_t_3 = 0;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
  *     for childname in descr.names:
  *         fields = descr.fields[childname]
  *         child, new_offset = fields             # <<<<<<<<<<<<<<
@@ -4193,7 +4431,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __Pyx_XDECREF_SET(__pyx_v_new_offset, __pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -4210,7 +4448,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((((__pyx_v_end - __pyx_v_f) - ((int)__pyx_t_5)) < 15) != 0);
     if (unlikely(__pyx_t_6)) {
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -4223,7 +4461,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 856, __pyx_L1_error)
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -4232,7 +4470,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4252,7 +4490,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L8_next_or:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":859
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":859
  * 
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -4269,7 +4507,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = __pyx_t_7;
     __pyx_L7_bool_binop_done:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4278,7 +4516,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     if (unlikely(__pyx_t_6)) {
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):
  *             raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -4291,7 +4529,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 860, __pyx_L1_error)
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4300,7 +4538,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":870
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":870
  * 
  *         # Output padding bytes
  *         while offset[0] < new_offset:             # <<<<<<<<<<<<<<
@@ -4316,7 +4554,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (!__pyx_t_6) break;
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":871
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":871
  *         # Output padding bytes
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte             # <<<<<<<<<<<<<<
@@ -4325,7 +4563,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       (__pyx_v_f[0]) = 0x78;
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":872
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":872
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte
  *             f += 1             # <<<<<<<<<<<<<<
@@ -4334,7 +4572,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":873
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":873
  *             f[0] = 120 # "x"; pad byte
  *             f += 1
  *             offset[0] += 1             # <<<<<<<<<<<<<<
@@ -4345,7 +4583,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + 1);
     }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":875
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":875
  *             offset[0] += 1
  * 
  *         offset[0] += child.itemsize             # <<<<<<<<<<<<<<
@@ -4355,7 +4593,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_8 = 0;
     (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + __pyx_v_child->elsize);
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -4365,7 +4603,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((!(PyDataType_HASFIELDS(__pyx_v_child) != 0)) != 0);
     if (__pyx_t_6) {
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":878
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":878
  * 
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num             # <<<<<<<<<<<<<<
@@ -4377,7 +4615,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_XDECREF_SET(__pyx_v_t, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -4387,7 +4625,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __pyx_t_6 = (((__pyx_v_end - __pyx_v_f) < 5) != 0);
       if (unlikely(__pyx_t_6)) {
 
-        /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
+        /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -4400,7 +4638,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __PYX_ERR(1, 880, __pyx_L1_error)
 
-        /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
+        /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -4409,7 +4647,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":883
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":883
  * 
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"             # <<<<<<<<<<<<<<
@@ -4427,7 +4665,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":884
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":884
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"             # <<<<<<<<<<<<<<
@@ -4445,7 +4683,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":885
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":885
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"             # <<<<<<<<<<<<<<
@@ -4463,7 +4701,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":886
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":886
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"             # <<<<<<<<<<<<<<
@@ -4481,7 +4719,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":887
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":887
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"             # <<<<<<<<<<<<<<
@@ -4499,7 +4737,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":888
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":888
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"             # <<<<<<<<<<<<<<
@@ -4517,7 +4755,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":889
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":889
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"             # <<<<<<<<<<<<<<
@@ -4535,7 +4773,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":890
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":890
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"             # <<<<<<<<<<<<<<
@@ -4553,7 +4791,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":891
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":891
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"             # <<<<<<<<<<<<<<
@@ -4571,7 +4809,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":892
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":892
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"             # <<<<<<<<<<<<<<
@@ -4589,7 +4827,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":893
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":893
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"             # <<<<<<<<<<<<<<
@@ -4607,7 +4845,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":894
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":894
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"             # <<<<<<<<<<<<<<
@@ -4625,7 +4863,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":895
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":895
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"             # <<<<<<<<<<<<<<
@@ -4643,7 +4881,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":896
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":896
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf             # <<<<<<<<<<<<<<
@@ -4663,7 +4901,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":897
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":897
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd             # <<<<<<<<<<<<<<
@@ -4683,7 +4921,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":898
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":898
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg             # <<<<<<<<<<<<<<
@@ -4703,7 +4941,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":899
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":899
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"             # <<<<<<<<<<<<<<
@@ -4721,7 +4959,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":901
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":901
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -4740,7 +4978,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       }
       __pyx_L15:;
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":902
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":902
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *             f += 1             # <<<<<<<<<<<<<<
@@ -4749,7 +4987,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -4759,7 +4997,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       goto __pyx_L13;
     }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":906
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":906
  *             # Cython ignores struct boundary information ("T{...}"),
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)             # <<<<<<<<<<<<<<
@@ -4772,7 +5010,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L13:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -4782,7 +5020,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":907
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":907
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)
  *     return f             # <<<<<<<<<<<<<<
@@ -4792,7 +5030,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   __pyx_r = __pyx_v_f;
   goto __pyx_L0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -4817,7 +5055,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
  *     int _import_umath() except -1
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -4829,7 +5067,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("set_array_base", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1023
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1023
  * 
  * cdef inline void set_array_base(ndarray arr, object base):
  *     Py_INCREF(base) # important to do this before stealing the reference below!             # <<<<<<<<<<<<<<
@@ -4838,7 +5076,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   Py_INCREF(__pyx_v_base);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1024
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1024
  * cdef inline void set_array_base(ndarray arr, object base):
  *     Py_INCREF(base) # important to do this before stealing the reference below!
  *     PyArray_SetBaseObject(arr, base)             # <<<<<<<<<<<<<<
@@ -4847,7 +5085,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   (void)(PyArray_SetBaseObject(__pyx_v_arr, __pyx_v_base));
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
  *     int _import_umath() except -1
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -4859,7 +5097,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __Pyx_RefNannyFinishContext();
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
  *     PyArray_SetBaseObject(arr, base)
  * 
  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
@@ -4874,7 +5112,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("get_array_base", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1027
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1027
  * 
  * cdef inline object get_array_base(ndarray arr):
  *     base = PyArray_BASE(arr)             # <<<<<<<<<<<<<<
@@ -4883,7 +5121,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
  */
   __pyx_v_base = PyArray_BASE(__pyx_v_arr);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
  * cdef inline object get_array_base(ndarray arr):
  *     base = PyArray_BASE(arr)
  *     if base is NULL:             # <<<<<<<<<<<<<<
@@ -4893,7 +5131,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   __pyx_t_1 = ((__pyx_v_base == NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1029
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1029
  *     base = PyArray_BASE(arr)
  *     if base is NULL:
  *         return None             # <<<<<<<<<<<<<<
@@ -4904,7 +5142,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
     __pyx_r = Py_None; __Pyx_INCREF(Py_None);
     goto __pyx_L0;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
  * cdef inline object get_array_base(ndarray arr):
  *     base = PyArray_BASE(arr)
  *     if base is NULL:             # <<<<<<<<<<<<<<
@@ -4913,7 +5151,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
  */
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1030
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1030
  *     if base is NULL:
  *         return None
  *     return <object>base             # <<<<<<<<<<<<<<
@@ -4925,7 +5163,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   __pyx_r = ((PyObject *)__pyx_v_base);
   goto __pyx_L0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
  *     PyArray_SetBaseObject(arr, base)
  * 
  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
@@ -4940,7 +5178,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
  * # Versions of the import_* functions which are more suitable for
  * # Cython code.
  * cdef inline int import_array() except -1:             # <<<<<<<<<<<<<<
@@ -4961,7 +5199,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
   PyObject *__pyx_t_8 = NULL;
   __Pyx_RefNannySetupContext("import_array", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
  * # Cython code.
  * cdef inline int import_array() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -4977,7 +5215,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1036
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1036
  * cdef inline int import_array() except -1:
  *     try:
  *         _import_array()             # <<<<<<<<<<<<<<
@@ -4986,7 +5224,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
  */
       __pyx_t_4 = _import_array(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1036, __pyx_L3_error)
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
  * # Cython code.
  * cdef inline int import_array() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5000,7 +5238,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     goto __pyx_L8_try_end;
     __pyx_L3_error:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1037
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1037
  *     try:
  *         _import_array()
  *     except Exception:             # <<<<<<<<<<<<<<
@@ -5015,7 +5253,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_GOTREF(__pyx_t_7);
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
  *         _import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -5031,7 +5269,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
  * # Cython code.
  * cdef inline int import_array() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5046,7 +5284,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
  * # Versions of the import_* functions which are more suitable for
  * # Cython code.
  * cdef inline int import_array() except -1:             # <<<<<<<<<<<<<<
@@ -5069,7 +5307,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
  *         raise ImportError("numpy.core.multiarray failed to import")
  * 
  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
@@ -5090,7 +5328,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
   PyObject *__pyx_t_8 = NULL;
   __Pyx_RefNannySetupContext("import_umath", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
  * 
  * cdef inline int import_umath() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5106,7 +5344,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1042
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1042
  * cdef inline int import_umath() except -1:
  *     try:
  *         _import_umath()             # <<<<<<<<<<<<<<
@@ -5115,7 +5353,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
  */
       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1042, __pyx_L3_error)
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
  * 
  * cdef inline int import_umath() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5129,7 +5367,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     goto __pyx_L8_try_end;
     __pyx_L3_error:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1043
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1043
  *     try:
  *         _import_umath()
  *     except Exception:             # <<<<<<<<<<<<<<
@@ -5144,7 +5382,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_GOTREF(__pyx_t_7);
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -5160,7 +5398,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
  * 
  * cdef inline int import_umath() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5175,7 +5413,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
  *         raise ImportError("numpy.core.multiarray failed to import")
  * 
  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
@@ -5198,7 +5436,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
   return __pyx_r;
 }
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
+/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -5219,7 +5457,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
   PyObject *__pyx_t_8 = NULL;
   __Pyx_RefNannySetupContext("import_ufunc", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
  * 
  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5235,7 +5473,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1048
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1048
  * cdef inline int import_ufunc() except -1:
  *     try:
  *         _import_umath()             # <<<<<<<<<<<<<<
@@ -5244,7 +5482,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
  */
       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1048, __pyx_L3_error)
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
  * 
  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5258,7 +5496,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     goto __pyx_L8_try_end;
     __pyx_L3_error:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1049
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1049
  *     try:
  *         _import_umath()
  *     except Exception:             # <<<<<<<<<<<<<<
@@ -5272,7 +5510,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_GOTREF(__pyx_t_7);
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1050
+      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1050
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -5286,7 +5524,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
+    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
  * 
  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5301,7 +5539,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -5324,6 +5562,224 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
   return __pyx_r;
 }
 
+/* "cfunc.to_py":65
+ * @cname("__Pyx_CFunc_object____object___to_py")
+ * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
+ *     def wrap(object b):             # <<<<<<<<<<<<<<
+ *         """wrap(b)"""
+ *         return f(b)
+ */
+
+/* Python wrapper */
+static PyObject *__pyx_pw_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /*proto*/
+static char __pyx_doc_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap[] = "wrap(b)";
+static PyMethodDef __pyx_mdef_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap = {"wrap", (PyCFunction)__pyx_pw_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap, METH_O, __pyx_doc_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap};
+static PyObject *__pyx_pw_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap(PyObject *__pyx_self, PyObject *__pyx_v_b) {
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("wrap (wrapper)", 0);
+  __pyx_r = __pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(__pyx_self, ((PyObject *)__pyx_v_b));
+
+  /* function exit code */
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b) {
+  struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_cur_scope;
+  struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_outer_scope;
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  __Pyx_RefNannySetupContext("wrap", 0);
+  __pyx_outer_scope = (struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *) __Pyx_CyFunction_GetClosure(__pyx_self);
+  __pyx_cur_scope = __pyx_outer_scope;
+
+  /* "cfunc.to_py":67
+ *     def wrap(object b):
+ *         """wrap(b)"""
+ *         return f(b)             # <<<<<<<<<<<<<<
+ *     return wrap
+ * 
+ */
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = __pyx_cur_scope->__pyx_v_f(__pyx_v_b); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 67, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_r = __pyx_t_1;
+  __pyx_t_1 = 0;
+  goto __pyx_L0;
+
+  /* "cfunc.to_py":65
+ * @cname("__Pyx_CFunc_object____object___to_py")
+ * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
+ *     def wrap(object b):             # <<<<<<<<<<<<<<
+ *         """wrap(b)"""
+ *         return f(b)
+ */
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_AddTraceback("cfunc.to_py.__Pyx_CFunc_object____object___to_py.wrap", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* "cfunc.to_py":64
+ * 
+ * @cname("__Pyx_CFunc_object____object___to_py")
+ * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
+ *     def wrap(object b):
+ *         """wrap(b)"""
+ */
+
+static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*__pyx_v_f)(PyObject *)) {
+  struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_cur_scope;
+  PyObject *__pyx_v_wrap = 0;
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  __Pyx_RefNannySetupContext("__Pyx_CFunc_object____object___to_py", 0);
+  __pyx_cur_scope = (struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(__pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py, __pyx_empty_tuple, NULL);
+  if (unlikely(!__pyx_cur_scope)) {
+    __pyx_cur_scope = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)Py_None);
+    __Pyx_INCREF(Py_None);
+    __PYX_ERR(2, 64, __pyx_L1_error)
+  } else {
+    __Pyx_GOTREF(__pyx_cur_scope);
+  }
+  __pyx_cur_scope->__pyx_v_f = __pyx_v_f;
+
+  /* "cfunc.to_py":65
+ * @cname("__Pyx_CFunc_object____object___to_py")
+ * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
+ *     def wrap(object b):             # <<<<<<<<<<<<<<
+ *         """wrap(b)"""
+ *         return f(b)
+ */
+  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap, 0, __pyx_n_s_Pyx_CFunc_object____object___t, ((PyObject*)__pyx_cur_scope), __pyx_n_s_cfunc_to_py, __pyx_d, ((PyObject *)__pyx_codeobj__11)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 65, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_v_wrap = __pyx_t_1;
+  __pyx_t_1 = 0;
+
+  /* "cfunc.to_py":68
+ *         """wrap(b)"""
+ *         return f(b)
+ *     return wrap             # <<<<<<<<<<<<<<
+ * 
+ * 
+ */
+  __Pyx_XDECREF(__pyx_r);
+  __Pyx_INCREF(__pyx_v_wrap);
+  __pyx_r = __pyx_v_wrap;
+  goto __pyx_L0;
+
+  /* "cfunc.to_py":64
+ * 
+ * @cname("__Pyx_CFunc_object____object___to_py")
+ * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
+ *     def wrap(object b):
+ *         """wrap(b)"""
+ */
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_AddTraceback("cfunc.to_py.__Pyx_CFunc_object____object___to_py", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_v_wrap);
+  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[8];
+static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
+
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  PyObject *o;
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
+    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py];
+    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py));
+    (void) PyObject_INIT(o, t);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
+  }
+  return o;
+}
+
+static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
+    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
+  }
+}
+
+static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "gensim.models._utils_any2vec.__pyx_scope_struct____Pyx_CFunc_object____object___to_py", /*tp_name*/
+  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #endif
+  #if PY_MAJOR_VERSION >= 3
+  0, /*tp_as_async*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER, /*tp_flags*/
+  0, /*tp_doc*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  0, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
 static PyMethodDef __pyx_methods[] = {
   {"ft_hash_bytes", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash_bytes},
   {"ft_hash_broken", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_broken},
@@ -5382,12 +5838,16 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_MB_START, __pyx_k_MB_START, sizeof(__pyx_k_MB_START), 0, 0, 1, 1},
   {&__pyx_kp_u_Non_native_byte_order_not_suppor, __pyx_k_Non_native_byte_order_not_suppor, sizeof(__pyx_k_Non_native_byte_order_not_suppor), 0, 1, 0, 0},
   {&__pyx_n_s_PY2, __pyx_k_PY2, sizeof(__pyx_k_PY2), 0, 0, 1, 1},
+  {&__pyx_n_s_Pyx_CFunc_object____object___t, __pyx_k_Pyx_CFunc_object____object___t, sizeof(__pyx_k_Pyx_CFunc_object____object___t), 0, 0, 1, 1},
   {&__pyx_n_s_RuntimeError, __pyx_k_RuntimeError, sizeof(__pyx_k_RuntimeError), 0, 0, 1, 1},
   {&__pyx_n_s_ValueError, __pyx_k_ValueError, sizeof(__pyx_k_ValueError), 0, 0, 1, 1},
   {&__pyx_kp_u__2, __pyx_k__2, sizeof(__pyx_k__2), 0, 1, 0, 0},
+  {&__pyx_n_s_b, __pyx_k_b, sizeof(__pyx_k_b), 0, 0, 1, 1},
+  {&__pyx_n_s_cfunc_to_py, __pyx_k_cfunc_to_py, sizeof(__pyx_k_cfunc_to_py), 0, 0, 1, 1},
   {&__pyx_n_s_cline_in_traceback, __pyx_k_cline_in_traceback, sizeof(__pyx_k_cline_in_traceback), 0, 0, 1, 1},
   {&__pyx_n_s_encode, __pyx_k_encode, sizeof(__pyx_k_encode), 0, 0, 1, 1},
   {&__pyx_n_s_import, __pyx_k_import, sizeof(__pyx_k_import), 0, 0, 1, 1},
+  {&__pyx_n_s_is_utf8_continue, __pyx_k_is_utf8_continue, sizeof(__pyx_k_is_utf8_continue), 0, 0, 1, 1},
   {&__pyx_n_s_main, __pyx_k_main, sizeof(__pyx_k_main), 0, 0, 1, 1},
   {&__pyx_n_s_max_n, __pyx_k_max_n, sizeof(__pyx_k_max_n), 0, 0, 1, 1},
   {&__pyx_n_s_min_n, __pyx_k_min_n, sizeof(__pyx_k_min_n), 0, 0, 1, 1},
@@ -5401,10 +5861,12 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_range, __pyx_k_range, sizeof(__pyx_k_range), 0, 0, 1, 1},
   {&__pyx_kp_s_s, __pyx_k_s, sizeof(__pyx_k_s), 0, 0, 1, 0},
   {&__pyx_n_s_six, __pyx_k_six, sizeof(__pyx_k_six), 0, 0, 1, 1},
+  {&__pyx_kp_s_stringsource, __pyx_k_stringsource, sizeof(__pyx_k_stringsource), 0, 0, 1, 0},
   {&__pyx_n_s_test, __pyx_k_test, sizeof(__pyx_k_test), 0, 0, 1, 1},
   {&__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_k_unknown_dtype_code_in_numpy_pxd, sizeof(__pyx_k_unknown_dtype_code_in_numpy_pxd), 0, 1, 0, 0},
   {&__pyx_kp_s_utf_8, __pyx_k_utf_8, sizeof(__pyx_k_utf_8), 0, 0, 1, 0},
   {&__pyx_n_s_word, __pyx_k_word, sizeof(__pyx_k_word), 0, 0, 1, 1},
+  {&__pyx_n_s_wrap, __pyx_k_wrap, sizeof(__pyx_k_wrap), 0, 0, 1, 1},
   {0, 0, 0, 0, 0, 0, 0}
 };
 static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
@@ -5421,7 +5883,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -5432,7 +5894,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__3);
   __Pyx_GIVEREF(__pyx_tuple__3);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -5443,7 +5905,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__4);
   __Pyx_GIVEREF(__pyx_tuple__4);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -5454,7 +5916,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__5);
   __Pyx_GIVEREF(__pyx_tuple__5);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -5465,7 +5927,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__6);
   __Pyx_GIVEREF(__pyx_tuple__6);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -5476,7 +5938,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__7);
   __Pyx_GIVEREF(__pyx_tuple__7);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
  *         _import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -5487,7 +5949,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__8);
   __Pyx_GIVEREF(__pyx_tuple__8);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
+  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -5497,6 +5959,18 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __pyx_tuple__9 = PyTuple_Pack(1, __pyx_kp_s_numpy_core_umath_failed_to_impor); if (unlikely(!__pyx_tuple__9)) __PYX_ERR(1, 1044, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__9);
   __Pyx_GIVEREF(__pyx_tuple__9);
+
+  /* "cfunc.to_py":65
+ * @cname("__Pyx_CFunc_object____object___to_py")
+ * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
+ *     def wrap(object b):             # <<<<<<<<<<<<<<
+ *         """wrap(b)"""
+ *         return f(b)
+ */
+  __pyx_tuple__10 = PyTuple_Pack(1, __pyx_n_s_b); if (unlikely(!__pyx_tuple__10)) __PYX_ERR(2, 65, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_tuple__10);
+  __Pyx_GIVEREF(__pyx_tuple__10);
+  __pyx_codeobj__11 = (PyObject*)__Pyx_PyCode_New(1, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__10, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_wrap, 65, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__11)) __PYX_ERR(2, 65, __pyx_L1_error)
   __Pyx_RefNannyFinishContext();
   return 0;
   __pyx_L1_error:;
@@ -5551,8 +6025,17 @@ static int __Pyx_modinit_type_init_code(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_modinit_type_init_code", 0);
   /*--- Type init code ---*/
+  if (PyType_Ready(&__pyx_scope_struct____Pyx_CFunc_object____object___to_py) < 0) __PYX_ERR(2, 64, __pyx_L1_error)
+  __pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_print = 0;
+  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_dictoffset && __pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_getattro == PyObject_GenericGetAttr)) {
+    __pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_getattro = __Pyx_PyObject_GenericGetAttrNoDict;
+  }
+  __pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py = &__pyx_scope_struct____Pyx_CFunc_object____object___to_py;
   __Pyx_RefNannyFinishContext();
   return 0;
+  __pyx_L1_error:;
+  __Pyx_RefNannyFinishContext();
+  return -1;
 }
 
 static int __Pyx_modinit_type_import_code(void) {
@@ -5560,7 +6043,7 @@ static int __Pyx_modinit_type_import_code(void) {
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("__Pyx_modinit_type_import_code", 0);
   /*--- Type import code ---*/
-  __pyx_t_1 = PyImport_ImportModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 9, __pyx_L1_error)
+  __pyx_t_1 = PyImport_ImportModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_t_1)) __PYX_ERR(3, 9, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_ptype_7cpython_4type_type = __Pyx_ImportType(__pyx_t_1, __Pyx_BUILTIN_MODULE_NAME, "type", 
   #if defined(PYPY_VERSION_NUM) && PYPY_VERSION_NUM < 0x050B0000
@@ -5569,7 +6052,7 @@ static int __Pyx_modinit_type_import_code(void) {
   sizeof(PyHeapTypeObject),
   #endif
   __Pyx_ImportType_CheckSize_Warn);
-   if (!__pyx_ptype_7cpython_4type_type) __PYX_ERR(2, 9, __pyx_L1_error)
+   if (!__pyx_ptype_7cpython_4type_type) __PYX_ERR(3, 9, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = PyImport_ImportModule("numpy"); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 206, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
@@ -5702,6 +6185,7 @@ static CYTHON_SMALL_CODE int __pyx_pymod_exec__utils_any2vec(PyObject *__pyx_pyi
 {
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
+  int __pyx_t_3;
   __Pyx_RefNannyDeclarations
   #if CYTHON_PEP489_MULTI_PHASE_INIT
   if (__pyx_m) {
@@ -5798,7 +6282,7 @@ if (!__Pyx_RefNanny) {
   (void)__Pyx_modinit_global_init_code();
   (void)__Pyx_modinit_variable_export_code();
   (void)__Pyx_modinit_function_export_code();
-  (void)__Pyx_modinit_type_init_code();
+  if (unlikely(__Pyx_modinit_type_init_code() != 0)) goto __pyx_L1_error;
   if (unlikely(__Pyx_modinit_type_import_code() != 0)) goto __pyx_L1_error;
   (void)__Pyx_modinit_variable_import_code();
   (void)__Pyx_modinit_function_import_code();
@@ -5858,6 +6342,31 @@ if (!__Pyx_RefNanny) {
  */
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_START, __pyx_int_128) < 0) __PYX_ERR(0, 101, __pyx_L1_error)
 
+  /* "gensim/models/_utils_any2vec.pyx":112
+ * 
+ * 
+ * _is_utf8_continue = _is_utf8_continue_py2 if PY2 else _is_utf8_continue_py3             # <<<<<<<<<<<<<<
+ * 
+ * 
+ */
+  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) __PYX_ERR(0, 112, __pyx_L1_error)
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  if (__pyx_t_3) {
+    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_2 = __pyx_t_1;
+    __pyx_t_1 = 0;
+  } else {
+    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_2 = __pyx_t_1;
+    __pyx_t_1 = 0;
+  }
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_is_utf8_continue, __pyx_t_2) < 0) __PYX_ERR(0, 112, __pyx_L1_error)
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+
   /* "gensim/models/_utils_any2vec.pyx":1
  * #!/usr/bin/env cython             # <<<<<<<<<<<<<<
  * # cython: boundscheck=False
@@ -5868,12 +6377,12 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_2) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
- *         raise ImportError("numpy.core.umath failed to import")
+  /* "cfunc.to_py":64
  * 
- * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
- *     try:
- *         _import_umath()
+ * @cname("__Pyx_CFunc_object____object___to_py")
+ * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
+ *     def wrap(object b):
+ *         """wrap(b)"""
  */
 
   /*--- Wrapped vars code ---*/
@@ -6416,6 +6925,41 @@ static int __Pyx_ParseOptionalKeywords(
     return -1;
 }
 
+/* GetModuleGlobalName */
+#if CYTHON_USE_DICT_VERSIONS
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
+#else
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
+#endif
+{
+    PyObject *result;
+#if !CYTHON_AVOID_BORROWED_REFS
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
+    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    } else if (unlikely(PyErr_Occurred())) {
+        return NULL;
+    }
+#else
+    result = PyDict_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+#endif
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+    PyErr_Clear();
+#endif
+    return __Pyx_GetBuiltinName(name);
+}
+
 /* PyCFunctionFastCall */
 #if CYTHON_FAST_PYCCALL
 static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
@@ -6734,41 +7278,6 @@ static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
     return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
 }
 
-/* GetModuleGlobalName */
-#if CYTHON_USE_DICT_VERSIONS
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
-#else
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
-#endif
-{
-    PyObject *result;
-#if !CYTHON_AVOID_BORROWED_REFS
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
-    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    } else if (unlikely(PyErr_Occurred())) {
-        return NULL;
-    }
-#else
-    result = PyDict_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    }
-#endif
-#else
-    result = PyObject_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    }
-    PyErr_Clear();
-#endif
-    return __Pyx_GetBuiltinName(name);
-}
-
 /* PyErrFetchRestore */
 #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
@@ -7162,6 +7671,681 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     return -1;
 }
 
+/* FetchCommonType */
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
+    PyObject* fake_module;
+    PyTypeObject* cached_type = NULL;
+    fake_module = PyImport_AddModule((char*) "_cython_" CYTHON_ABI);
+    if (!fake_module) return NULL;
+    Py_INCREF(fake_module);
+    cached_type = (PyTypeObject*) PyObject_GetAttrString(fake_module, type->tp_name);
+    if (cached_type) {
+        if (!PyType_Check((PyObject*)cached_type)) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s is not a type object",
+                type->tp_name);
+            goto bad;
+        }
+        if (cached_type->tp_basicsize != type->tp_basicsize) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s has the wrong size, try recompiling",
+                type->tp_name);
+            goto bad;
+        }
+    } else {
+        if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
+        PyErr_Clear();
+        if (PyType_Ready(type) < 0) goto bad;
+        if (PyObject_SetAttrString(fake_module, type->tp_name, (PyObject*) type) < 0)
+            goto bad;
+        Py_INCREF(type);
+        cached_type = type;
+    }
+done:
+    Py_DECREF(fake_module);
+    return cached_type;
+bad:
+    Py_XDECREF(cached_type);
+    cached_type = NULL;
+    goto done;
+}
+
+/* CythonFunction */
+#include <structmember.h>
+static PyObject *
+__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
+{
+    if (unlikely(op->func_doc == NULL)) {
+        if (op->func.m_ml->ml_doc) {
+#if PY_MAJOR_VERSION >= 3
+            op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc);
+#else
+            op->func_doc = PyString_FromString(op->func.m_ml->ml_doc);
+#endif
+            if (unlikely(op->func_doc == NULL))
+                return NULL;
+        } else {
+            Py_INCREF(Py_None);
+            return Py_None;
+        }
+    }
+    Py_INCREF(op->func_doc);
+    return op->func_doc;
+}
+static int
+__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
+{
+    PyObject *tmp = op->func_doc;
+    if (value == NULL) {
+        value = Py_None;
+    }
+    Py_INCREF(value);
+    op->func_doc = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
+{
+    if (unlikely(op->func_name == NULL)) {
+#if PY_MAJOR_VERSION >= 3
+        op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name);
+#else
+        op->func_name = PyString_InternFromString(op->func.m_ml->ml_name);
+#endif
+        if (unlikely(op->func_name == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_name);
+    return op->func_name;
+}
+static int
+__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value)))
+#else
+    if (unlikely(value == NULL || !PyString_Check(value)))
+#endif
+    {
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_name;
+    Py_INCREF(value);
+    op->func_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
+{
+    Py_INCREF(op->func_qualname);
+    return op->func_qualname;
+}
+static int
+__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value)))
+#else
+    if (unlikely(value == NULL || !PyString_Check(value)))
+#endif
+    {
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_qualname;
+    Py_INCREF(value);
+    op->func_qualname = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure)
+{
+    PyObject *self;
+    self = m->func_closure;
+    if (self == NULL)
+        self = Py_None;
+    Py_INCREF(self);
+    return self;
+}
+static PyObject *
+__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
+{
+    if (unlikely(op->func_dict == NULL)) {
+        op->func_dict = PyDict_New();
+        if (unlikely(op->func_dict == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_dict);
+    return op->func_dict;
+}
+static int
+__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
+{
+    PyObject *tmp;
+    if (unlikely(value == NULL)) {
+        PyErr_SetString(PyExc_TypeError,
+               "function's dictionary may not be deleted");
+        return -1;
+    }
+    if (unlikely(!PyDict_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+               "setting function's dictionary to a non-dict");
+        return -1;
+    }
+    tmp = op->func_dict;
+    Py_INCREF(value);
+    op->func_dict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
+{
+    Py_INCREF(op->func_globals);
+    return op->func_globals;
+}
+static PyObject *
+__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
+{
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+static PyObject *
+__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
+{
+    PyObject* result = (op->func_code) ? op->func_code : Py_None;
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
+    int result = 0;
+    PyObject *res = op->defaults_getter((PyObject *) op);
+    if (unlikely(!res))
+        return -1;
+    #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
+    Py_INCREF(op->defaults_tuple);
+    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
+    Py_INCREF(op->defaults_kwdict);
+    #else
+    op->defaults_tuple = PySequence_ITEM(res, 0);
+    if (unlikely(!op->defaults_tuple)) result = -1;
+    else {
+        op->defaults_kwdict = PySequence_ITEM(res, 1);
+        if (unlikely(!op->defaults_kwdict)) result = -1;
+    }
+    #endif
+    Py_DECREF(res);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value, CYTHON_UNUSED void *context) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyTuple_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__defaults__ must be set to a tuple object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_tuple;
+    op->defaults_tuple = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context) {
+    PyObject* result = op->defaults_tuple;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_tuple;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value, CYTHON_UNUSED void *context) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__kwdefaults__ must be set to a dict object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_kwdict;
+    op->defaults_kwdict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context) {
+    PyObject* result = op->defaults_kwdict;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_kwdict;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value, CYTHON_UNUSED void *context) {
+    PyObject* tmp;
+    if (!value || value == Py_None) {
+        value = NULL;
+    } else if (!PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__annotations__ must be set to a dict object");
+        return -1;
+    }
+    Py_XINCREF(value);
+    tmp = op->func_annotations;
+    op->func_annotations = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context) {
+    PyObject* result = op->func_annotations;
+    if (unlikely(!result)) {
+        result = PyDict_New();
+        if (unlikely(!result)) return NULL;
+        op->func_annotations = result;
+    }
+    Py_INCREF(result);
+    return result;
+}
+static PyGetSetDef __pyx_CyFunction_getsets[] = {
+    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
+    {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0},
+    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
+    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
+    {0, 0, 0, 0, 0}
+};
+static PyMemberDef __pyx_CyFunction_members[] = {
+    {(char *) "__module__", T_OBJECT, offsetof(PyCFunctionObject, m_module), PY_WRITE_RESTRICTED, 0},
+    {0, 0, 0,  0, 0}
+};
+static PyObject *
+__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromString(m->func.m_ml->ml_name);
+#else
+    return PyString_FromString(m->func.m_ml->ml_name);
+#endif
+}
+static PyMethodDef __pyx_CyFunction_methods[] = {
+    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
+    {0, 0, 0, 0}
+};
+#if PY_VERSION_HEX < 0x030500A0
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
+#else
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist)
+#endif
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname,
+                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
+    if (op == NULL)
+        return NULL;
+    op->flags = flags;
+    __Pyx_CyFunction_weakreflist(op) = NULL;
+    op->func.m_ml = ml;
+    op->func.m_self = (PyObject *) op;
+    Py_XINCREF(closure);
+    op->func_closure = closure;
+    Py_XINCREF(module);
+    op->func.m_module = module;
+    op->func_dict = NULL;
+    op->func_name = NULL;
+    Py_INCREF(qualname);
+    op->func_qualname = qualname;
+    op->func_doc = NULL;
+    op->func_classobj = NULL;
+    op->func_globals = globals;
+    Py_INCREF(op->func_globals);
+    Py_XINCREF(code);
+    op->func_code = code;
+    op->defaults_pyobjects = 0;
+    op->defaults = NULL;
+    op->defaults_tuple = NULL;
+    op->defaults_kwdict = NULL;
+    op->defaults_getter = NULL;
+    op->func_annotations = NULL;
+    PyObject_GC_Track(op);
+    return (PyObject *) op;
+}
+static int
+__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
+{
+    Py_CLEAR(m->func_closure);
+    Py_CLEAR(m->func.m_module);
+    Py_CLEAR(m->func_dict);
+    Py_CLEAR(m->func_name);
+    Py_CLEAR(m->func_qualname);
+    Py_CLEAR(m->func_doc);
+    Py_CLEAR(m->func_globals);
+    Py_CLEAR(m->func_code);
+    Py_CLEAR(m->func_classobj);
+    Py_CLEAR(m->defaults_tuple);
+    Py_CLEAR(m->defaults_kwdict);
+    Py_CLEAR(m->func_annotations);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_XDECREF(pydefaults[i]);
+        PyObject_Free(m->defaults);
+        m->defaults = NULL;
+    }
+    return 0;
+}
+static void __Pyx__CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    if (__Pyx_CyFunction_weakreflist(m) != NULL)
+        PyObject_ClearWeakRefs((PyObject *) m);
+    __Pyx_CyFunction_clear(m);
+    PyObject_GC_Del(m);
+}
+static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    PyObject_GC_UnTrack(m);
+    __Pyx__CyFunction_dealloc(m);
+}
+static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
+{
+    Py_VISIT(m->func_closure);
+    Py_VISIT(m->func.m_module);
+    Py_VISIT(m->func_dict);
+    Py_VISIT(m->func_name);
+    Py_VISIT(m->func_qualname);
+    Py_VISIT(m->func_doc);
+    Py_VISIT(m->func_globals);
+    Py_VISIT(m->func_code);
+    Py_VISIT(m->func_classobj);
+    Py_VISIT(m->defaults_tuple);
+    Py_VISIT(m->defaults_kwdict);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_VISIT(pydefaults[i]);
+    }
+    return 0;
+}
+static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
+{
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
+        Py_INCREF(func);
+        return func;
+    }
+    if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) {
+        if (type == NULL)
+            type = (PyObject *)(Py_TYPE(obj));
+        return __Pyx_PyMethod_New(func, type, (PyObject *)(Py_TYPE(type)));
+    }
+    if (obj == Py_None)
+        obj = NULL;
+    return __Pyx_PyMethod_New(func, obj, type);
+}
+static PyObject*
+__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromFormat("<cyfunction %U at %p>",
+                                op->func_qualname, (void *)op);
+#else
+    return PyString_FromFormat("<cyfunction %s at %p>",
+                               PyString_AsString(op->func_qualname), (void *)op);
+#endif
+}
+static PyObject * __Pyx_CyFunction_CallMethod(PyObject *func, PyObject *self, PyObject *arg, PyObject *kw) {
+    PyCFunctionObject* f = (PyCFunctionObject*)func;
+    PyCFunction meth = f->m_ml->ml_meth;
+    Py_ssize_t size;
+    switch (f->m_ml->ml_flags & (METH_VARARGS | METH_KEYWORDS | METH_NOARGS | METH_O)) {
+    case METH_VARARGS:
+        if (likely(kw == NULL || PyDict_Size(kw) == 0))
+            return (*meth)(self, arg);
+        break;
+    case METH_VARARGS | METH_KEYWORDS:
+        return (*(PyCFunctionWithKeywords)(void*)meth)(self, arg, kw);
+    case METH_NOARGS:
+        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
+            size = PyTuple_GET_SIZE(arg);
+            if (likely(size == 0))
+                return (*meth)(self, NULL);
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    case METH_O:
+        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
+            size = PyTuple_GET_SIZE(arg);
+            if (likely(size == 1)) {
+                PyObject *result, *arg0;
+                #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+                arg0 = PyTuple_GET_ITEM(arg, 0);
+                #else
+                arg0 = PySequence_ITEM(arg, 0); if (unlikely(!arg0)) return NULL;
+                #endif
+                result = (*meth)(self, arg0);
+                #if !(CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS)
+                Py_DECREF(arg0);
+                #endif
+                return result;
+            }
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    default:
+        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
+                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
+                        "longer supported!");
+        return NULL;
+    }
+    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
+                 f->m_ml->ml_name);
+    return NULL;
+}
+static CYTHON_INLINE PyObject *__Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    return __Pyx_CyFunction_CallMethod(func, ((PyCFunctionObject*)func)->m_self, arg, kw);
+}
+static PyObject *__Pyx_CyFunction_CallAsMethod(PyObject *func, PyObject *args, PyObject *kw) {
+    PyObject *result;
+    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *) func;
+    if ((cyfunc->flags & __Pyx_CYFUNCTION_CCLASS) && !(cyfunc->flags & __Pyx_CYFUNCTION_STATICMETHOD)) {
+        Py_ssize_t argc;
+        PyObject *new_args;
+        PyObject *self;
+        argc = PyTuple_GET_SIZE(args);
+        new_args = PyTuple_GetSlice(args, 1, argc);
+        if (unlikely(!new_args))
+            return NULL;
+        self = PyTuple_GetItem(args, 0);
+        if (unlikely(!self)) {
+            Py_DECREF(new_args);
+            return NULL;
+        }
+        result = __Pyx_CyFunction_CallMethod(func, self, new_args, kw);
+        Py_DECREF(new_args);
+    } else {
+        result = __Pyx_CyFunction_Call(func, args, kw);
+    }
+    return result;
+}
+static PyTypeObject __pyx_CyFunctionType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    "cython_function_or_method",
+    sizeof(__pyx_CyFunctionObject),
+    0,
+    (destructor) __Pyx_CyFunction_dealloc,
+    0,
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
+#else
+    0,
+#endif
+    (reprfunc) __Pyx_CyFunction_repr,
+    0,
+    0,
+    0,
+    0,
+    __Pyx_CyFunction_CallAsMethod,
+    0,
+    0,
+    0,
+    0,
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
+    0,
+    (traverseproc) __Pyx_CyFunction_traverse,
+    (inquiry) __Pyx_CyFunction_clear,
+    0,
+#if PY_VERSION_HEX < 0x030500A0
+    offsetof(__pyx_CyFunctionObject, func_weakreflist),
+#else
+    offsetof(PyCFunctionObject, m_weakreflist),
+#endif
+    0,
+    0,
+    __pyx_CyFunction_methods,
+    __pyx_CyFunction_members,
+    __pyx_CyFunction_getsets,
+    0,
+    0,
+    __Pyx_CyFunction_descr_get,
+    0,
+    offsetof(__pyx_CyFunctionObject, func_dict),
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
+#endif
+};
+static int __pyx_CyFunction_init(void) {
+    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
+    if (unlikely(__pyx_CyFunctionType == NULL)) {
+        return -1;
+    }
+    return 0;
+}
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults = PyObject_Malloc(size);
+    if (unlikely(!m->defaults))
+        return PyErr_NoMemory();
+    memset(m->defaults, 0, size);
+    m->defaults_pyobjects = pyobjects;
+    return m->defaults;
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_tuple = tuple;
+    Py_INCREF(tuple);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_kwdict = dict;
+    Py_INCREF(dict);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->func_annotations = dict;
+    Py_INCREF(dict);
+}
+
+/* PyObject_GenericGetAttrNoDict */
+#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
+static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) {
+    PyErr_Format(PyExc_AttributeError,
+#if PY_MAJOR_VERSION >= 3
+                 "'%.50s' object has no attribute '%U'",
+                 tp->tp_name, attr_name);
+#else
+                 "'%.50s' object has no attribute '%.400s'",
+                 tp->tp_name, PyString_AS_STRING(attr_name));
+#endif
+    return NULL;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) {
+    PyObject *descr;
+    PyTypeObject *tp = Py_TYPE(obj);
+    if (unlikely(!PyString_Check(attr_name))) {
+        return PyObject_GenericGetAttr(obj, attr_name);
+    }
+    assert(!tp->tp_dictoffset);
+    descr = _PyType_Lookup(tp, attr_name);
+    if (unlikely(!descr)) {
+        return __Pyx_RaiseGenericGetAttributeError(tp, attr_name);
+    }
+    Py_INCREF(descr);
+    #if PY_MAJOR_VERSION < 3
+    if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS)))
+    #endif
+    {
+        descrgetfunc f = Py_TYPE(descr)->tp_descr_get;
+        if (unlikely(f)) {
+            PyObject *res = f(descr, obj, (PyObject *)tp);
+            Py_DECREF(descr);
+            return res;
+        }
+    }
+    return descr;
+}
+#endif
+
 /* TypeImport */
 #ifndef __PYX_HAVE_RT_ImportType
 #define __PYX_HAVE_RT_ImportType
@@ -7593,6 +8777,37 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value)
     }
 }
 
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
 /* CIntToPy */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
     const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
@@ -7763,7 +8978,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2f(0, -1);
+                    theta = atan2f(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_float(a);
@@ -7918,7 +9133,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2(0, -1);
+                    theta = atan2(0.0, -1.0);
                 }
             } else {
                 r = __Pyx_c_abs_double(a);
@@ -8532,37 +9747,6 @@ static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
     return (int) -1;
 }
 
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
-    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(long) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(long) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(long) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(long),
-                                     little, !is_unsigned);
-    }
-}
-
 /* CIntFromPy */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
     const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index 674cfe8146..1cafacb6fc 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -101,6 +101,17 @@ _MB_MASK = 0xC0
 _MB_START = 0x80
 
 
+cdef _is_utf8_continue_py3(b):
+    return b & _MB_MASK == _MB_START
+
+
+cdef _is_utf8_continue_py2(b):
+    return ord(b) & _MB_MASK == _MB_START
+
+
+_is_utf8_continue = _is_utf8_continue_py2 if PY2 else _is_utf8_continue_py3
+
+
 cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
     """Computes ngrams for a word.
 
@@ -131,13 +142,13 @@ cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
 
     ngrams = []
     for i in range(num_bytes):
-        if utf8_word[i] & _MB_MASK == _MB_START:
+        if _is_utf8_continue(utf8_word[i]):
             continue
 
         j, n = i, 1
         while j < num_bytes and n <= max_n:
             j += 1
-            while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+            while j < num_bytes and _is_utf8_continue(utf8_word[j]):
                 j += 1
             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
                 ngram = bytes(utf8_word[i:j])
diff --git a/gensim/models/utils_any2vec.py b/gensim/models/utils_any2vec.py
index 0e77840137..9108e457a4 100644
--- a/gensim/models/utils_any2vec.py
+++ b/gensim/models/utils_any2vec.py
@@ -47,8 +47,8 @@
 
 def _byte_to_int_py3(b):
     return b
-
-
+ 
+ 
 def _byte_to_int_py2(b):
     return ord(b)
 
@@ -56,6 +56,11 @@ def _byte_to_int_py2(b):
 _byte_to_int = _byte_to_int_py2 if PY2 else _byte_to_int_py3
 
 
+def _is_utf8_continue(b):
+    return _byte_to_int(b) & _MB_MASK == _MB_START
+
+
+
 #
 # Define this here so we can unittest this function directly.
 # Only use this function if the faster C version fails to import.
@@ -167,13 +172,13 @@ def _compute_ngrams_bytes_py(word, min_n, max_n):
 
     ngrams = []
     for i in range(num_bytes):
-        if utf8_word[i] & _MB_MASK == _MB_START:
+        if _is_utf8_continue(utf8_word[i]):
             continue
 
         j, n = i, 1
         while j < num_bytes and n <= max_n:
             j += 1
-            while j < num_bytes and (utf8_word[j] & _MB_MASK) == _MB_START:
+            while j < num_bytes and _is_utf8_continue(utf8_word[j]):
                 j += 1
             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
                 ngram = bytes(utf8_word[i:j])

From 6617b808b2041fe16134ce53877d03e0adceb59f Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Wed, 23 Jan 2019 14:17:34 +1100
Subject: [PATCH 24/32] flake8

---
 gensim/models/utils_any2vec.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/gensim/models/utils_any2vec.py b/gensim/models/utils_any2vec.py
index 9108e457a4..88242c31ea 100644
--- a/gensim/models/utils_any2vec.py
+++ b/gensim/models/utils_any2vec.py
@@ -47,8 +47,8 @@
 
 def _byte_to_int_py3(b):
     return b
- 
- 
+
+
 def _byte_to_int_py2(b):
     return ord(b)
 
@@ -60,7 +60,6 @@ def _is_utf8_continue(b):
     return _byte_to_int(b) & _MB_MASK == _MB_START
 
 
-
 #
 # Define this here so we can unittest this function directly.
 # Only use this function if the faster C version fails to import.

From da025d33b6797b524c092e3e65f51895052f4003 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Wed, 23 Jan 2019 15:12:41 +1100
Subject: [PATCH 25/32] review response: get rid of set()

---
 gensim/test/test_utils.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index 3153195092..a71b828887 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -463,7 +463,7 @@ def test_bytes_py(self):
             # The text and byte implementations yield ngrams in different
             # order, so the test ignores ngram order.
             #
-            self.assertEqual(sorted(set(expected_text)), sorted(set(actual_text)))
+            self.assertEqual(sorted(expected_text), sorted(actual_text))
 
     @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
     def test_bytes_cy(self):
@@ -474,7 +474,7 @@ def test_bytes_cy(self):
 
             expected_text = self.expected_text[word]
             actual_text = [n.decode('utf-8') for n in actual]
-            self.assertEqual(sorted(set(expected_text)), sorted(set(actual_text)))
+            self.assertEqual(sorted(expected_text), sorted(actual_text))
 
 
 if __name__ == '__main__':

From 402db7d285f5230da65c12ac6e7c41fe485801a1 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Wed, 23 Jan 2019 15:14:21 +1100
Subject: [PATCH 26/32] review response: remove excess bytes() call

---
 gensim/models/_utils_any2vec.c   | 449 +++++++++++++++----------------
 gensim/models/_utils_any2vec.pyx |   2 +-
 2 files changed, 224 insertions(+), 227 deletions(-)

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index ad8cdfe979..7e7ca73364 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.29.3 */
+/* Generated by Cython 0.29.2 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,8 +7,8 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_29_3"
-#define CYTHON_HEX_VERSION 0x001D03F0
+#define CYTHON_ABI "0_29_2"
+#define CYTHON_HEX_VERSION 0x001D02F0
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -398,7 +398,7 @@
 typedef int Py_tss_t;
 static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
   *key = PyThread_create_key();
-  return 0;
+  return 0; // PyThread_create_key reports success always
 }
 static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
   Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
@@ -421,7 +421,7 @@ static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
 static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   return PyThread_get_key_value(*key);
 }
-#endif
+#endif // TSS (Thread Specific Storage) API
 #if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
 #define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
 #else
@@ -848,7 +848,7 @@ static const char *__pyx_f[] = {
   "type.pxd",
 };
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -857,7 +857,7 @@ static const char *__pyx_f[] = {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":777
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -866,7 +866,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -875,7 +875,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -884,7 +884,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":783
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -893,7 +893,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -902,7 +902,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -911,7 +911,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":786
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -920,7 +920,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -929,7 +929,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -938,7 +938,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":800
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -947,7 +947,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -956,7 +956,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -965,7 +965,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":804
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -974,7 +974,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -983,7 +983,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -992,7 +992,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":808
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -1001,7 +1001,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -1010,7 +1010,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":811
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1019,7 +1019,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1028,7 +1028,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1064,7 +1064,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 /*--- Type declarations ---*/
 struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1073,7 +1073,7 @@ struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py;
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":816
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1082,7 +1082,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":817
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1091,7 +1091,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":819
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -2934,7 +2934,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
  *                 ngram = bytes(utf8_word[i:j])
- *                 ngrams.append(bytes(ngram))
+ *                 ngrams.append(ngram)
  */
       __pyx_t_12 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
       if (__pyx_t_12) {
@@ -2966,7 +2966,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  *                 ngram = bytes(utf8_word[i:j])             # <<<<<<<<<<<<<<
- *                 ngrams.append(bytes(ngram))
+ *                 ngrams.append(ngram)
  *             n += 1
  */
         if (unlikely(__pyx_v_utf8_word == Py_None)) {
@@ -2984,27 +2984,24 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
         /* "gensim/models/_utils_any2vec.pyx":155
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  *                 ngram = bytes(utf8_word[i:j])
- *                 ngrams.append(bytes(ngram))             # <<<<<<<<<<<<<<
+ *                 ngrams.append(ngram)             # <<<<<<<<<<<<<<
  *             n += 1
  *     return ngrams
  */
-        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_v_ngram); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 155, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_t_3); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 155, __pyx_L1_error)
-        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_v_ngram); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 155, __pyx_L1_error)
 
         /* "gensim/models/_utils_any2vec.pyx":153
  *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
  *                 ngram = bytes(utf8_word[i:j])
- *                 ngrams.append(bytes(ngram))
+ *                 ngrams.append(ngram)
  */
       }
 
       /* "gensim/models/_utils_any2vec.pyx":156
  *                 ngram = bytes(utf8_word[i:j])
- *                 ngrams.append(bytes(ngram))
+ *                 ngrams.append(ngram)
  *             n += 1             # <<<<<<<<<<<<<<
  *     return ngrams
  */
@@ -3014,7 +3011,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   }
 
   /* "gensim/models/_utils_any2vec.pyx":157
- *                 ngrams.append(bytes(ngram))
+ *                 ngrams.append(ngram)
  *             n += 1
  *     return ngrams             # <<<<<<<<<<<<<<
  */
@@ -3144,7 +3141,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -3193,7 +3190,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
  * 
  *             cdef int i, ndim
  *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -3202,7 +3199,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
  *             cdef int i, ndim
  *             cdef int endian_detector = 1
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -3211,7 +3208,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
  *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
@@ -3220,7 +3217,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3234,7 +3231,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L4_bool_binop_done;
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -3245,7 +3242,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L4_bool_binop_done:;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3254,7 +3251,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -3267,7 +3264,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 272, __pyx_L1_error)
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3276,7 +3273,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3290,7 +3287,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L7_bool_binop_done;
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -3301,7 +3298,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L7_bool_binop_done:;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3310,7 +3307,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -3323,7 +3320,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 276, __pyx_L1_error)
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3332,7 +3329,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
  *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
@@ -3341,7 +3338,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
  * 
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim             # <<<<<<<<<<<<<<
@@ -3350,7 +3347,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->ndim = __pyx_v_ndim;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3360,7 +3357,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
  *                 # Allocate new buffer for strides and shape info.
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
@@ -3369,7 +3366,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
@@ -3378,7 +3375,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":285
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":285
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -3390,7 +3387,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
@@ -3399,7 +3396,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
       (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]
  *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
@@ -3409,7 +3406,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
     }
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3419,7 +3416,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L9;
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
  *                     info.shape[i] = PyArray_DIMS(self)[i]
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
@@ -3429,7 +3426,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":290
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":290
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
@@ -3440,7 +3437,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   }
   __pyx_L9:;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":291
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":291
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -3449,7 +3446,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->suboffsets = NULL;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
@@ -3458,7 +3455,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":293
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":293
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)
  *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
@@ -3467,7 +3464,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
  * 
  *             cdef int t
  *             cdef char* f = NULL             # <<<<<<<<<<<<<<
@@ -3476,7 +3473,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_f = NULL;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             cdef int t
  *             cdef char* f = NULL
  *             cdef dtype descr = <dtype>PyArray_DESCR(self)             # <<<<<<<<<<<<<<
@@ -3489,7 +3486,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":300
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":300
  *             cdef int offset
  * 
  *             info.obj = self             # <<<<<<<<<<<<<<
@@ -3502,7 +3499,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -3512,7 +3509,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":303
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":303
  * 
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num             # <<<<<<<<<<<<<<
@@ -3522,7 +3519,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_4 = __pyx_v_descr->type_num;
     __pyx_v_t = __pyx_t_4;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -3542,7 +3539,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     }
     __pyx_L15_next_or:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":305
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":305
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -3559,7 +3556,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_1 = __pyx_t_2;
     __pyx_L14_bool_binop_done:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -3568,7 +3565,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     if (unlikely(__pyx_t_1)) {
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -3581,7 +3578,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 306, __pyx_L1_error)
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -3590,7 +3587,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     }
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":307
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":307
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
@@ -3603,7 +3600,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_UBYTE:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":308
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":308
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
@@ -3614,7 +3611,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_SHORT:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":309
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":309
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
@@ -3625,7 +3622,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_USHORT:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":310
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":310
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
@@ -3636,7 +3633,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_INT:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":311
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":311
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
@@ -3647,7 +3644,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_UINT:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":312
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":312
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
@@ -3658,7 +3655,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_LONG:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":313
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":313
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
@@ -3669,7 +3666,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_ULONG:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":314
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":314
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
@@ -3680,7 +3677,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_LONGLONG:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":315
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":315
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
@@ -3691,7 +3688,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_ULONGLONG:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":316
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":316
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
@@ -3702,7 +3699,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_FLOAT:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":317
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":317
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
@@ -3713,7 +3710,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_DOUBLE:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":318
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":318
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
@@ -3724,7 +3721,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_LONGDOUBLE:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":319
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":319
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
@@ -3735,7 +3732,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_CFLOAT:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":320
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":320
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
@@ -3746,7 +3743,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_CDOUBLE:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":321
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":321
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
@@ -3757,7 +3754,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_CLONGDOUBLE:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":322
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":322
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
@@ -3768,7 +3765,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       case NPY_OBJECT:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":323
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":323
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
@@ -3779,7 +3776,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       default:
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":325
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":325
  *                 elif t == NPY_OBJECT:      f = "O"
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -3800,7 +3797,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
     }
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":326
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":326
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f             # <<<<<<<<<<<<<<
@@ -3809,7 +3806,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->format = __pyx_v_f;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":327
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":327
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f
  *                 return             # <<<<<<<<<<<<<<
@@ -3819,7 +3816,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_r = 0;
     goto __pyx_L0;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -3828,7 +3825,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":329
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":329
  *                 return
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
@@ -3838,7 +3835,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":330
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":330
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
@@ -3847,7 +3844,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     (__pyx_v_info->format[0]) = '^';
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":331
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":331
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0             # <<<<<<<<<<<<<<
@@ -3856,7 +3853,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_offset = 0;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":332
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":332
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0
  *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
@@ -3866,7 +3863,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_9 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_9 == ((char *)NULL))) __PYX_ERR(1, 332, __pyx_L1_error)
     __pyx_v_f = __pyx_t_9;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":335
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":335
  *                                       info.format + _buffer_format_string_len,
  *                                       &offset)
  *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
@@ -3876,7 +3873,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     (__pyx_v_f[0]) = '\x00';
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -3908,7 +3905,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -3932,7 +3929,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__releasebuffer__", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -3942,7 +3939,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":339
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":339
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
@@ -3951,7 +3948,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->format);
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -3960,7 +3957,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3970,7 +3967,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":341
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":341
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
@@ -3979,7 +3976,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->strides);
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -3988,7 +3985,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -4000,7 +3997,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __Pyx_RefNannyFinishContext();
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -4014,7 +4011,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew1", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":822
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":822
  * 
  * cdef inline object PyArray_MultiIterNew1(a):
  *     return PyArray_MultiIterNew(1, <void*>a)             # <<<<<<<<<<<<<<
@@ -4028,7 +4025,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -4047,7 +4044,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -4061,7 +4058,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew2", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)             # <<<<<<<<<<<<<<
@@ -4075,7 +4072,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -4094,7 +4091,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -4108,7 +4105,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew3", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":828
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":828
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)             # <<<<<<<<<<<<<<
@@ -4122,7 +4119,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -4141,7 +4138,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -4155,7 +4152,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew4", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)             # <<<<<<<<<<<<<<
@@ -4169,7 +4166,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":830
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -4188,7 +4185,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -4202,7 +4199,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew5", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)             # <<<<<<<<<<<<<<
@@ -4216,7 +4213,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -4235,7 +4232,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -4249,7 +4246,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("PyDataType_SHAPE", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):             # <<<<<<<<<<<<<<
@@ -4259,7 +4256,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   __pyx_t_1 = (PyDataType_HASSUBARRAY(__pyx_v_d) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):
  *         return <tuple>d.subarray.shape             # <<<<<<<<<<<<<<
@@ -4271,7 +4268,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
     __pyx_r = ((PyObject*)__pyx_v_d->subarray->shape);
     goto __pyx_L0;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):             # <<<<<<<<<<<<<<
@@ -4280,7 +4277,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
  */
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
  *         return <tuple>d.subarray.shape
  *     else:
  *         return ()             # <<<<<<<<<<<<<<
@@ -4294,7 +4291,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
     goto __pyx_L0;
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":836
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -4309,7 +4306,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -4338,7 +4335,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   char *__pyx_t_9;
   __Pyx_RefNannySetupContext("_util_dtypestring", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
  * 
  *     cdef dtype child
  *     cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -4347,7 +4344,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
  *     cdef dtype child
  *     cdef int endian_detector = 1
  *     cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -4356,7 +4353,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -4379,7 +4376,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __Pyx_XDECREF_SET(__pyx_v_childname, __pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
  * 
  *     for childname in descr.names:
  *         fields = descr.fields[childname]             # <<<<<<<<<<<<<<
@@ -4396,7 +4393,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __Pyx_XDECREF_SET(__pyx_v_fields, ((PyObject*)__pyx_t_3));
     __pyx_t_3 = 0;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
  *     for childname in descr.names:
  *         fields = descr.fields[childname]
  *         child, new_offset = fields             # <<<<<<<<<<<<<<
@@ -4431,7 +4428,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __Pyx_XDECREF_SET(__pyx_v_new_offset, __pyx_t_4);
     __pyx_t_4 = 0;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -4448,7 +4445,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((((__pyx_v_end - __pyx_v_f) - ((int)__pyx_t_5)) < 15) != 0);
     if (unlikely(__pyx_t_6)) {
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -4461,7 +4458,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 856, __pyx_L1_error)
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -4470,7 +4467,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4490,7 +4487,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L8_next_or:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":859
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":859
  * 
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -4507,7 +4504,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = __pyx_t_7;
     __pyx_L7_bool_binop_done:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4516,7 +4513,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     if (unlikely(__pyx_t_6)) {
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):
  *             raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -4529,7 +4526,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 860, __pyx_L1_error)
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":858
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4538,7 +4535,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":870
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":870
  * 
  *         # Output padding bytes
  *         while offset[0] < new_offset:             # <<<<<<<<<<<<<<
@@ -4554,7 +4551,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (!__pyx_t_6) break;
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":871
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":871
  *         # Output padding bytes
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte             # <<<<<<<<<<<<<<
@@ -4563,7 +4560,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       (__pyx_v_f[0]) = 0x78;
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":872
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":872
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte
  *             f += 1             # <<<<<<<<<<<<<<
@@ -4572,7 +4569,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":873
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":873
  *             f[0] = 120 # "x"; pad byte
  *             f += 1
  *             offset[0] += 1             # <<<<<<<<<<<<<<
@@ -4583,7 +4580,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + 1);
     }
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":875
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":875
  *             offset[0] += 1
  * 
  *         offset[0] += child.itemsize             # <<<<<<<<<<<<<<
@@ -4593,7 +4590,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_8 = 0;
     (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + __pyx_v_child->elsize);
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -4603,7 +4600,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((!(PyDataType_HASFIELDS(__pyx_v_child) != 0)) != 0);
     if (__pyx_t_6) {
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":878
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":878
  * 
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num             # <<<<<<<<<<<<<<
@@ -4615,7 +4612,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_XDECREF_SET(__pyx_v_t, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -4625,7 +4622,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __pyx_t_6 = (((__pyx_v_end - __pyx_v_f) < 5) != 0);
       if (unlikely(__pyx_t_6)) {
 
-        /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
+        /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -4638,7 +4635,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __PYX_ERR(1, 880, __pyx_L1_error)
 
-        /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
+        /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":879
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -4647,7 +4644,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":883
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":883
  * 
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"             # <<<<<<<<<<<<<<
@@ -4665,7 +4662,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":884
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":884
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"             # <<<<<<<<<<<<<<
@@ -4683,7 +4680,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":885
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":885
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"             # <<<<<<<<<<<<<<
@@ -4701,7 +4698,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":886
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":886
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"             # <<<<<<<<<<<<<<
@@ -4719,7 +4716,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":887
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":887
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"             # <<<<<<<<<<<<<<
@@ -4737,7 +4734,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":888
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":888
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"             # <<<<<<<<<<<<<<
@@ -4755,7 +4752,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":889
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":889
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"             # <<<<<<<<<<<<<<
@@ -4773,7 +4770,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":890
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":890
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"             # <<<<<<<<<<<<<<
@@ -4791,7 +4788,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":891
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":891
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"             # <<<<<<<<<<<<<<
@@ -4809,7 +4806,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":892
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":892
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"             # <<<<<<<<<<<<<<
@@ -4827,7 +4824,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":893
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":893
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"             # <<<<<<<<<<<<<<
@@ -4845,7 +4842,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":894
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":894
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"             # <<<<<<<<<<<<<<
@@ -4863,7 +4860,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":895
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":895
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"             # <<<<<<<<<<<<<<
@@ -4881,7 +4878,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":896
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":896
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf             # <<<<<<<<<<<<<<
@@ -4901,7 +4898,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":897
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":897
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd             # <<<<<<<<<<<<<<
@@ -4921,7 +4918,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":898
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":898
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg             # <<<<<<<<<<<<<<
@@ -4941,7 +4938,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":899
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":899
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"             # <<<<<<<<<<<<<<
@@ -4959,7 +4956,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":901
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":901
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -4978,7 +4975,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       }
       __pyx_L15:;
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":902
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":902
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *             f += 1             # <<<<<<<<<<<<<<
@@ -4987,7 +4984,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":877
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -4997,7 +4994,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       goto __pyx_L13;
     }
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":906
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":906
  *             # Cython ignores struct boundary information ("T{...}"),
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)             # <<<<<<<<<<<<<<
@@ -5010,7 +5007,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L13:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -5020,7 +5017,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":907
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":907
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)
  *     return f             # <<<<<<<<<<<<<<
@@ -5030,7 +5027,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   __pyx_r = __pyx_v_f;
   goto __pyx_L0;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -5055,7 +5052,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
  *     int _import_umath() except -1
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -5067,7 +5064,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("set_array_base", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1023
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1023
  * 
  * cdef inline void set_array_base(ndarray arr, object base):
  *     Py_INCREF(base) # important to do this before stealing the reference below!             # <<<<<<<<<<<<<<
@@ -5076,7 +5073,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   Py_INCREF(__pyx_v_base);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1024
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1024
  * cdef inline void set_array_base(ndarray arr, object base):
  *     Py_INCREF(base) # important to do this before stealing the reference below!
  *     PyArray_SetBaseObject(arr, base)             # <<<<<<<<<<<<<<
@@ -5085,7 +5082,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   (void)(PyArray_SetBaseObject(__pyx_v_arr, __pyx_v_base));
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1022
  *     int _import_umath() except -1
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -5097,7 +5094,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __Pyx_RefNannyFinishContext();
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
  *     PyArray_SetBaseObject(arr, base)
  * 
  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
@@ -5112,7 +5109,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("get_array_base", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1027
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1027
  * 
  * cdef inline object get_array_base(ndarray arr):
  *     base = PyArray_BASE(arr)             # <<<<<<<<<<<<<<
@@ -5121,7 +5118,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
  */
   __pyx_v_base = PyArray_BASE(__pyx_v_arr);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
  * cdef inline object get_array_base(ndarray arr):
  *     base = PyArray_BASE(arr)
  *     if base is NULL:             # <<<<<<<<<<<<<<
@@ -5131,7 +5128,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   __pyx_t_1 = ((__pyx_v_base == NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1029
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1029
  *     base = PyArray_BASE(arr)
  *     if base is NULL:
  *         return None             # <<<<<<<<<<<<<<
@@ -5142,7 +5139,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
     __pyx_r = Py_None; __Pyx_INCREF(Py_None);
     goto __pyx_L0;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1028
  * cdef inline object get_array_base(ndarray arr):
  *     base = PyArray_BASE(arr)
  *     if base is NULL:             # <<<<<<<<<<<<<<
@@ -5151,7 +5148,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
  */
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1030
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1030
  *     if base is NULL:
  *         return None
  *     return <object>base             # <<<<<<<<<<<<<<
@@ -5163,7 +5160,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   __pyx_r = ((PyObject *)__pyx_v_base);
   goto __pyx_L0;
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1026
  *     PyArray_SetBaseObject(arr, base)
  * 
  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
@@ -5178,7 +5175,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
  * # Versions of the import_* functions which are more suitable for
  * # Cython code.
  * cdef inline int import_array() except -1:             # <<<<<<<<<<<<<<
@@ -5199,7 +5196,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
   PyObject *__pyx_t_8 = NULL;
   __Pyx_RefNannySetupContext("import_array", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
  * # Cython code.
  * cdef inline int import_array() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5215,7 +5212,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1036
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1036
  * cdef inline int import_array() except -1:
  *     try:
  *         _import_array()             # <<<<<<<<<<<<<<
@@ -5224,7 +5221,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
  */
       __pyx_t_4 = _import_array(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1036, __pyx_L3_error)
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
  * # Cython code.
  * cdef inline int import_array() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5238,7 +5235,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     goto __pyx_L8_try_end;
     __pyx_L3_error:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1037
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1037
  *     try:
  *         _import_array()
  *     except Exception:             # <<<<<<<<<<<<<<
@@ -5253,7 +5250,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_GOTREF(__pyx_t_7);
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
  *         _import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -5269,7 +5266,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1035
  * # Cython code.
  * cdef inline int import_array() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5284,7 +5281,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1034
  * # Versions of the import_* functions which are more suitable for
  * # Cython code.
  * cdef inline int import_array() except -1:             # <<<<<<<<<<<<<<
@@ -5307,7 +5304,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
  *         raise ImportError("numpy.core.multiarray failed to import")
  * 
  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
@@ -5328,7 +5325,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
   PyObject *__pyx_t_8 = NULL;
   __Pyx_RefNannySetupContext("import_umath", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
  * 
  * cdef inline int import_umath() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5344,7 +5341,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1042
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1042
  * cdef inline int import_umath() except -1:
  *     try:
  *         _import_umath()             # <<<<<<<<<<<<<<
@@ -5353,7 +5350,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
  */
       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1042, __pyx_L3_error)
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
  * 
  * cdef inline int import_umath() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5367,7 +5364,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     goto __pyx_L8_try_end;
     __pyx_L3_error:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1043
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1043
  *     try:
  *         _import_umath()
  *     except Exception:             # <<<<<<<<<<<<<<
@@ -5382,7 +5379,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_GOTREF(__pyx_t_7);
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -5398,7 +5395,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1041
  * 
  * cdef inline int import_umath() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5413,7 +5410,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1040
  *         raise ImportError("numpy.core.multiarray failed to import")
  * 
  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
@@ -5436,7 +5433,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
   return __pyx_r;
 }
 
-/* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -5457,7 +5454,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
   PyObject *__pyx_t_8 = NULL;
   __Pyx_RefNannySetupContext("import_ufunc", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
  * 
  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5473,7 +5470,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1048
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1048
  * cdef inline int import_ufunc() except -1:
  *     try:
  *         _import_umath()             # <<<<<<<<<<<<<<
@@ -5482,7 +5479,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
  */
       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1048, __pyx_L3_error)
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
  * 
  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5496,7 +5493,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     goto __pyx_L8_try_end;
     __pyx_L3_error:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1049
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1049
  *     try:
  *         _import_umath()
  *     except Exception:             # <<<<<<<<<<<<<<
@@ -5510,7 +5507,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_GOTREF(__pyx_t_7);
 
-      /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1050
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1050
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -5524,7 +5521,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1047
  * 
  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -5539,7 +5536,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -5883,7 +5880,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -5894,7 +5891,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__3);
   __Pyx_GIVEREF(__pyx_tuple__3);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -5905,7 +5902,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__4);
   __Pyx_GIVEREF(__pyx_tuple__4);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -5916,7 +5913,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__5);
   __Pyx_GIVEREF(__pyx_tuple__5);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -5927,7 +5924,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__6);
   __Pyx_GIVEREF(__pyx_tuple__6);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":880
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -5938,7 +5935,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__7);
   __Pyx_GIVEREF(__pyx_tuple__7);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1038
  *         _import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -5949,7 +5946,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__8);
   __Pyx_GIVEREF(__pyx_tuple__8);
 
-  /* "../../envs/gensim27/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1044
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -8978,7 +8975,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2f(0.0, -1.0);
+                    theta = atan2f(0, -1);
                 }
             } else {
                 r = __Pyx_c_abs_float(a);
@@ -9133,7 +9130,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
                     theta = 0;
                 } else {
                     r = -a.real;
-                    theta = atan2(0.0, -1.0);
+                    theta = atan2(0, -1);
                 }
             } else {
                 r = __Pyx_c_abs_double(a);
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index 1cafacb6fc..fe66c129c4 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -152,6 +152,6 @@ cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
                 j += 1
             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
                 ngram = bytes(utf8_word[i:j])
-                ngrams.append(bytes(ngram))
+                ngrams.append(ngram)
             n += 1
     return ngrams

From bb7282d9e2e6065ed10844256be05d66fcdcd3f8 Mon Sep 17 00:00:00 2001
From: Ivan Menshikh <menshikh.iv@gmail.com>
Date: Wed, 23 Jan 2019 16:36:39 +0500
Subject: [PATCH 27/32] fix tests (wide unicode issue)

---
 gensim/test/test_utils.py | 48 +++++++++++++++++++++++++++++++++++----
 1 file changed, 44 insertions(+), 4 deletions(-)

diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index a71b828887..09bcae8ff1 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -8,6 +8,7 @@
 """
 from __future__ import unicode_literals
 
+import sys
 import logging
 import unittest
 
@@ -403,10 +404,6 @@ def setUp(self):
             'тест': ['<те', 'тес', 'ест', 'ст>', '<тес', 'тест', 'ест>', '<тест', 'тест>'],
             'テスト': ['<テス', 'テスト', 'スト>', '<テスト', 'テスト>', '<テスト>'],
             '試し': ['<試し', '試し>', '<試し>'],
-            '🚑🚒🚓🚕': [
-                '<🚑🚒', '🚑🚒🚓', '🚒🚓🚕', '🚓🚕>',
-                '<🚑🚒🚓', '🚑🚒🚓🚕', '🚒🚓🚕>', '<🚑🚒🚓🚕', '🚑🚒🚓🚕>'
-             ],
         }
         self.expected_bytes = {
             'test': [b'<te', b'<tes', b'<test', b'tes', b'test', b'test>', b'est', b'est>', b'st>'],
@@ -425,6 +422,15 @@ def setUp(self):
                 b'\xe3\x83\x86\xe3\x82\xb9\xe3\x83\x88>', b'\xe3\x82\xb9\xe3\x83\x88>'
             ],
             '試し': [b'<\xe8\xa9\xa6\xe3\x81\x97', b'<\xe8\xa9\xa6\xe3\x81\x97>', b'\xe8\xa9\xa6\xe3\x81\x97>'],
+        }
+
+        self.expected_text_wide_unicode = {
+            '🚑🚒🚓🚕': [
+                '<🚑🚒', '🚑🚒🚓', '🚒🚓🚕', '🚓🚕>',
+                '<🚑🚒🚓', '🚑🚒🚓🚕', '🚒🚓🚕>', '<🚑🚒🚓🚕', '🚑🚒🚓🚕>'
+             ],
+        }
+        self.expected_bytes_wide_unicode = {
             '🚑🚒🚓🚕': [
                 b'<\xf0\x9f\x9a\x91\xf0\x9f\x9a\x92',
                 b'<\xf0\x9f\x9a\x91\xf0\x9f\x9a\x92\xf0\x9f\x9a\x93',
@@ -444,6 +450,13 @@ def test_text_py(self):
             actual = gensim.models.utils_any2vec._compute_ngrams_py(word, 3, 5)
             self.assertEqual(expected, actual)
 
+    @unittest.skipIf(sys.maxunicode == 0xffff, "Python interpreter doesn't support UCS-4 (wide unicode)")
+    def test_text_py_wide_unicode(self):
+        for word in self.expected_text_wide_unicode:
+            expected = self.expected_text_wide_unicode[word]
+            actual = gensim.models.utils_any2vec._compute_ngrams_py(word, 3, 5)
+            self.assertEqual(expected, actual)
+
     @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
     def test_text_cy(self):
         for word in self.expected_text:
@@ -451,6 +464,14 @@ def test_text_cy(self):
             actual = gensim.models.utils_any2vec._compute_ngrams_cy(word, 3, 5)
             self.assertEqual(expected, actual)
 
+    @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
+    @unittest.skipIf(sys.maxunicode == 0xffff, "Python interpreter doesn't support UCS-4 (wide unicode)")
+    def test_text_cy_wide_unicode(self):
+        for word in self.expected_text_wide_unicode:
+            expected = self.expected_text_wide_unicode[word]
+            actual = gensim.models.utils_any2vec._compute_ngrams_cy(word, 3, 5)
+            self.assertEqual(expected, actual)
+
     def test_bytes_py(self):
         for word in self.expected_bytes:
             expected = self.expected_bytes[word]
@@ -465,6 +486,16 @@ def test_bytes_py(self):
             #
             self.assertEqual(sorted(expected_text), sorted(actual_text))
 
+        for word in self.expected_bytes_wide_unicode:
+            expected = self.expected_bytes_wide_unicode[word]
+            actual = gensim.models.utils_any2vec._compute_ngrams_bytes_py(word, 3, 5)
+            self.assertEqual(expected, actual)
+
+            expected_text = self.expected_text_wide_unicode[word]
+            actual_text = [n.decode('utf-8') for n in actual]
+
+            self.assertEqual(sorted(expected_text), sorted(actual_text))
+
     @unittest.skipIf(DISABLE_CYTHON_TESTS, 'Cython functions are not properly compiled')
     def test_bytes_cy(self):
         for word in self.expected_bytes:
@@ -476,6 +507,15 @@ def test_bytes_cy(self):
             actual_text = [n.decode('utf-8') for n in actual]
             self.assertEqual(sorted(expected_text), sorted(actual_text))
 
+        for word in self.expected_bytes_wide_unicode:
+            expected = self.expected_bytes_wide_unicode[word]
+            actual = gensim.models.utils_any2vec._compute_ngrams_bytes_cy(word, 3, 5)
+            self.assertEqual(expected, actual)
+
+            expected_text = self.expected_text_wide_unicode[word]
+            actual_text = [n.decode('utf-8') for n in actual]
+            self.assertEqual(sorted(expected_text), sorted(actual_text))
+
 
 if __name__ == '__main__':
     logging.root.setLevel(logging.WARNING)

From 07baf845d4dc2cb52344cde3ea3c5eead15406a5 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Wed, 23 Jan 2019 18:25:24 +1100
Subject: [PATCH 28/32] add test against actual FB implementation

---
 gensim/test/test_data/fb-ngrams.txt | 103 ++++++++++++++++++++++++++++
 gensim/test/test_utils.py           |  56 +++++++++++++++
 2 files changed, 159 insertions(+)
 create mode 100644 gensim/test/test_data/fb-ngrams.txt

diff --git a/gensim/test/test_data/fb-ngrams.txt b/gensim/test/test_data/fb-ngrams.txt
new file mode 100644
index 0000000000..bb22c620a3
--- /dev/null
+++ b/gensim/test/test_data/fb-ngrams.txt
@@ -0,0 +1,103 @@
+<start>
+test
+test 0 0 0 0 0 
+<te -0.19949 -0.029413 0.043775 0.11325 0.028758 
+<tes -0.14656 0.072651 -0.16777 0.20026 0.21199 
+<test 0.11952 0.15093 -0.075759 0.18327 0.12471 
+<test> -0.058167 0.084801 -0.10452 0.085963 -0.14475 
+tes 0.066033 0.011132 0.13224 0.19839 -0.037827 
+test -0.12628 0.053912 0.051677 0.24844 0.083743 
+test> -0.016497 0.1322 0.21391 0.20869 -0.044566 
+est -0.12915 -0.02457 0.10145 0.23414 0.17121 
+est> -0.1776 0.19906 -0.15572 0.16449 -0.12887 
+st> -0.13712 0.028013 -0.041927 0.11244 0.12261 
+<end>
+<start>
+at the
+at the 0 0 0 0 0 
+<at -0.065364 0.17951 -0.17059 0.11436 -0.12783 
+<at  -0.16803 -0.050251 0.18284 0.039539 0.11029 
+<at t -0.10765 0.14862 0.074613 0.036533 -0.12163 
+<at th 0.04535 0.15192 -0.0021161 0.014343 0.12982 
+at  -0.028316 0.20524 -0.044208 0.01082 0.044295 
+at t -0.018828 0.078626 -0.022752 0.25697 0.16445 
+at th 0.11744 -0.081792 -0.046928 0.13902 -0.035713 
+at the -0.10338 0.12347 0.075082 0.09256 -0.056031 
+t t 0.10141 -0.14481 0.063407 0.14986 0.17709 
+t th 0.048443 0.15183 -0.058779 -0.1095 0.10566 
+t the -0.065392 -0.085291 0.088378 0.024628 0.12715 
+t the> 0.17667 0.026172 -0.15457 0.081664 -0.1315 
+ th 0.1095 0.077397 0.052745 -0.043956 0.033436 
+ the -0.15504 0.11166 -0.16434 0.089162 -0.16199 
+ the> 0.097803 -0.054657 -0.028828 0.21607 0.11286 
+the -0.046122 -0.071463 0.20759 0.25732 0.23174 
+the> 0.04535 0.15192 -0.0021161 0.014343 0.12982 
+he> -0.046122 -0.071463 0.20759 0.25732 0.23174 
+<end>
+<start>
+atnthe
+atnthe 0 0 0 0 0 
+<at -0.065364 0.17951 -0.17059 0.11436 -0.12783 
+<atn 0.028984 0.16258 0.034798 0.097158 -0.0114 
+<atnt -0.08267 -0.0314 -0.026692 -0.032777 0.14742 
+<atnth 0.11744 -0.081792 -0.046928 0.13902 -0.035713 
+atn -0.13495 0.20282 0.046914 -0.060429 0.16562 
+atnt 0.17718 0.038545 0.15457 0.19949 0.047912 
+atnth 0.13366 0.13832 0.20655 0.029926 0.18854 
+atnthe 0.16687 0.015504 0.18465 0.2356 0.023282 
+tnt -0.18941 -0.10551 0.17516 0.24101 -0.036153 
+tnth -0.095329 -0.053084 0.042155 -0.010311 0.040552 
+tnthe -0.15759 0.15036 -0.074765 -0.0096469 -0.032164 
+tnthe> -0.065392 -0.085291 0.088378 0.024628 0.12715 
+nth 0.067156 -0.068108 0.16394 0.18192 0.18902 
+nthe 0.13526 -0.023216 -0.10788 0.24512 -0.022174 
+nthe> -0.20296 -0.11805 0.20277 0.063027 -0.041727 
+the -0.046122 -0.071463 0.20759 0.25732 0.23174 
+the> 0.04535 0.15192 -0.0021161 0.014343 0.12982 
+he> -0.046122 -0.071463 0.20759 0.25732 0.23174 
+<end>
+<start>
+тест
+тест 0 0 0 0 0 
+<те -0.17079 -0.029842 0.10298 -0.12632 -0.14488 
+<тес -0.026151 0.13071 0.20833 0.17143 0.040533 
+<тест 0.17667 0.026172 -0.15457 0.081664 -0.1315 
+<тест> -0.065392 -0.085291 0.088378 0.024628 0.12715 
+тес -0.08172 -0.13699 0.14081 -0.036949 -0.037403 
+тест -0.11209 0.068818 -0.137 -0.088165 0.13144 
+тест> -0.20296 -0.11805 0.20277 0.063027 -0.041727 
+ест -0.17079 -0.029842 0.10298 -0.12632 -0.14488 
+ест> 0.16922 -0.1162 0.1462 0.1085 0.02952 
+ст> -0.17261 0.086891 0.21772 0.10036 0.19114 
+<end>
+<start>
+テスト
+テスト 0 0 0 0 0 
+<テス 0.066033 0.011132 0.13224 0.19839 -0.037827 
+<テスト -0.12915 -0.02457 0.10145 0.23414 0.17121 
+<テスト> -0.10241 0.0090735 0.097437 0.055768 0.03622 
+テスト 0.048443 0.15183 -0.058779 -0.1095 0.10566 
+テスト> -0.12628 0.053912 0.051677 0.24844 0.083743 
+スト> 0.12972 0.18282 -0.18266 -0.072433 0.19318 
+<end>
+<start>
+試し
+試し 0 0 0 0 0 
+<試し 0.1095 0.077397 0.052745 -0.043956 0.033436 
+<試し> 0.11952 0.15093 -0.075759 0.18327 0.12471 
+試し> -0.14656 0.072651 -0.16777 0.20026 0.21199 
+<end>
+<start>
+🚑🚒🚓🚕
+🚑🚒🚓🚕 0 0 0 0 0 
+<🚑🚒 -0.065364 0.17951 -0.17059 0.11436 -0.12783 
+<🚑🚒🚓 -0.13712 0.028013 -0.041927 0.11244 0.12261 
+<🚑🚒🚓🚕 0.18643 0.17268 0.024482 0.044628 -0.14716 
+<🚑🚒🚓🚕> -0.17261 0.086891 0.21772 0.10036 0.19114 
+🚑🚒🚓 0.11122 -0.16219 -0.15235 0.21407 0.14858 
+🚑🚒🚓🚕 -0.15504 0.11166 -0.16434 0.089162 -0.16199 
+🚑🚒🚓🚕> -0.13712 0.028013 -0.041927 0.11244 0.12261 
+🚒🚓🚕 -0.20296 -0.11805 0.20277 0.063027 -0.041727 
+🚒🚓🚕> 0.13526 -0.023216 -0.10788 0.24512 -0.022174 
+🚓🚕> -0.1776 0.19906 -0.15572 0.16449 -0.12887 
+<end>
diff --git a/gensim/test/test_utils.py b/gensim/test/test_utils.py
index 09bcae8ff1..c23087580f 100644
--- a/gensim/test/test_utils.py
+++ b/gensim/test/test_utils.py
@@ -20,6 +20,8 @@
 
 import gensim.models.utils_any2vec
 
+import smart_open
+
 DISABLE_CYTHON_TESTS = getattr(gensim.models.utils_any2vec, 'FAST_VERSION', None) == -1
 
 
@@ -516,6 +518,60 @@ def test_bytes_cy(self):
             actual_text = [n.decode('utf-8') for n in actual]
             self.assertEqual(sorted(expected_text), sorted(actual_text))
 
+    def test_fb(self):
+        """Test against results from Facebook's implementation."""
+        with smart_open.smart_open(datapath('fb-ngrams.txt'), 'r', encoding='utf-8') as fin:
+            fb = dict(_read_fb(fin))
+
+        for word, expected in fb.items():
+            #
+            # The model was trained with minn=3, maxn=6
+            #
+            actual = gensim.models.utils_any2vec._compute_ngrams_py(word, 3, 6)
+            self.assertEqual(sorted(expected), sorted(actual))
+
+
+def _read_fb(fin):
+    """Read ngrams from output of the FB utility."""
+    #
+    # $ cat words.txt
+    # test
+    # at the
+    # at\nthe
+    # тест
+    # テスト
+    # 試し
+    # 🚑🚒🚓🚕
+    # $ while read w;
+    # do
+    #   echo "<start>";
+    #   echo $w;
+    #   ./fasttext print-ngrams gensim/test/test_data/crime-and-punishment.bin "$w";
+    #   echo "<end>";
+    # done < words.txt > gensim/test/test_data/fb-ngrams.txt
+    #
+    while fin:
+        line = fin.readline().rstrip()
+        if not line:
+            break
+
+        assert line == '<start>'
+        word = fin.readline().rstrip()
+
+        fin.readline()  # ignore this line, it contains an origin vector for the full term
+
+        ngrams = []
+        while True:
+            line = fin.readline().rstrip()
+            if line == '<end>':
+                break
+
+            columns = line.split(' ')
+            term = ' '.join(columns[:-5])
+            ngrams.append(term)
+
+        yield word, ngrams
+
 
 if __name__ == '__main__':
     logging.root.setLevel(logging.WARNING)

From ce1a63137336d3f9665fece4a6ac624e67ad528b Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Thu, 24 Jan 2019 11:53:36 +1100
Subject: [PATCH 29/32] adding temporary benchmarking code

---
 bench.py                         |  13 +
 gensim/models/_utils_any2vec.c   | 641 +++++++++++++++++++++++++++++++
 gensim/models/_utils_any2vec.pyx |  25 ++
 3 files changed, 679 insertions(+)
 create mode 100644 bench.py

diff --git a/bench.py b/bench.py
new file mode 100644
index 0000000000..dcec83ddb7
--- /dev/null
+++ b/bench.py
@@ -0,0 +1,13 @@
+import gensim.downloader as api
+import itertools as it
+from gensim.models.utils_any2vec import compute_ngrams_bytes, ft_hash_bytes
+
+words = tuple(it.chain.from_iterable(api.load("text8")))
+assert len(words) == 17005207  # long enough
+
+words = words[:100000]
+
+
+def benchmark(words=words, ngram_func=compute_ngrams_bytes, hash_func=ft_hash_bytes):
+    for w in words:
+        arr = [hash_func(ngram) % 10000 for ngram in ngram_func(w, 3, 6)]
diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index 7e7ca73364..8c9052ba50 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -1693,6 +1693,9 @@ static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *);
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
+/* CIntFromPy.proto */
+static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *);
+
 /* CIntFromPy.proto */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
 
@@ -1753,6 +1756,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObjec
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py3(PyObject *); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py2(PyObject *); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes_optimized(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*)(PyObject *)); /*proto*/
 #define __Pyx_MODULE_NAME "gensim.models._utils_any2vec"
 extern int __pyx_module_is_main_gensim__models___utils_any2vec;
@@ -1842,6 +1846,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /* proto */
@@ -3004,6 +3009,7 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  *                 ngrams.append(ngram)
  *             n += 1             # <<<<<<<<<<<<<<
  *     return ngrams
+ * 
  */
       __pyx_v_n = (__pyx_v_n + 1);
     }
@@ -3014,6 +3020,8 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
  *                 ngrams.append(ngram)
  *             n += 1
  *     return ngrams             # <<<<<<<<<<<<<<
+ * 
+ * 
  */
   __Pyx_XDECREF(__pyx_r);
   __Pyx_INCREF(__pyx_v_ngrams);
@@ -3141,6 +3149,449 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes
   return __pyx_r;
 }
 
+/* "gensim/models/_utils_any2vec.pyx":160
+ * 
+ * 
+ * cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
+ *     cdef unsigned char _mb_mask = 0xC0
+ *     cdef unsigned char _mb_start = 0x80
+ */
+
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_9compute_ngrams_bytes_optimized(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes_optimized(PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n, CYTHON_UNUSED int __pyx_skip_dispatch) {
+  unsigned char __pyx_v__mb_mask;
+  unsigned char __pyx_v__mb_start;
+  PyObject *__pyx_v_utf8_word = 0;
+  unsigned char const *__pyx_v_bytez;
+  size_t __pyx_v_num_bytes;
+  size_t __pyx_v_j;
+  size_t __pyx_v_i;
+  size_t __pyx_v_n;
+  PyObject *__pyx_v_ngrams = NULL;
+  PyObject *__pyx_v_ngram = NULL;
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  unsigned char const *__pyx_t_4;
+  Py_ssize_t __pyx_t_5;
+  size_t __pyx_t_6;
+  size_t __pyx_t_7;
+  size_t __pyx_t_8;
+  int __pyx_t_9;
+  size_t __pyx_t_10;
+  size_t __pyx_t_11;
+  int __pyx_t_12;
+  int __pyx_t_13;
+  int __pyx_t_14;
+  __Pyx_RefNannySetupContext("compute_ngrams_bytes_optimized", 0);
+
+  /* "gensim/models/_utils_any2vec.pyx":161
+ * 
+ * cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):
+ *     cdef unsigned char _mb_mask = 0xC0             # <<<<<<<<<<<<<<
+ *     cdef unsigned char _mb_start = 0x80
+ *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
+ */
+  __pyx_v__mb_mask = 0xC0;
+
+  /* "gensim/models/_utils_any2vec.pyx":162
+ * cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):
+ *     cdef unsigned char _mb_mask = 0xC0
+ *     cdef unsigned char _mb_start = 0x80             # <<<<<<<<<<<<<<
+ *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
+ *     cdef const unsigned char *bytez = utf8_word
+ */
+  __pyx_v__mb_start = 0x80;
+
+  /* "gensim/models/_utils_any2vec.pyx":163
+ *     cdef unsigned char _mb_mask = 0xC0
+ *     cdef unsigned char _mb_start = 0x80
+ *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")             # <<<<<<<<<<<<<<
+ *     cdef const unsigned char *bytez = utf8_word
+ *     cdef size_t num_bytes = len(utf8_word)
+ */
+  __pyx_t_2 = __Pyx_PyString_FormatSafe(__pyx_kp_s_s, __pyx_v_word); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 163, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_encode); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 163, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = NULL;
+  if (CYTHON_UNPACK_METHODS && likely(PyMethod_Check(__pyx_t_3))) {
+    __pyx_t_2 = PyMethod_GET_SELF(__pyx_t_3);
+    if (likely(__pyx_t_2)) {
+      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_3);
+      __Pyx_INCREF(__pyx_t_2);
+      __Pyx_INCREF(function);
+      __Pyx_DECREF_SET(__pyx_t_3, function);
+    }
+  }
+  __pyx_t_1 = (__pyx_t_2) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_2, __pyx_kp_s_utf_8) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_kp_s_utf_8);
+  __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
+  if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 163, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (!(likely(PyBytes_CheckExact(__pyx_t_1))||((__pyx_t_1) == Py_None)||(PyErr_Format(PyExc_TypeError, "Expected %.16s, got %.200s", "bytes", Py_TYPE(__pyx_t_1)->tp_name), 0))) __PYX_ERR(0, 163, __pyx_L1_error)
+  __pyx_v_utf8_word = ((PyObject*)__pyx_t_1);
+  __pyx_t_1 = 0;
+
+  /* "gensim/models/_utils_any2vec.pyx":164
+ *     cdef unsigned char _mb_start = 0x80
+ *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
+ *     cdef const unsigned char *bytez = utf8_word             # <<<<<<<<<<<<<<
+ *     cdef size_t num_bytes = len(utf8_word)
+ *     cdef size_t j, i, n
+ */
+  if (unlikely(__pyx_v_utf8_word == Py_None)) {
+    PyErr_SetString(PyExc_TypeError, "expected bytes, NoneType found");
+    __PYX_ERR(0, 164, __pyx_L1_error)
+  }
+  __pyx_t_4 = __Pyx_PyBytes_AsUString(__pyx_v_utf8_word); if (unlikely((!__pyx_t_4) && PyErr_Occurred())) __PYX_ERR(0, 164, __pyx_L1_error)
+  __pyx_v_bytez = __pyx_t_4;
+
+  /* "gensim/models/_utils_any2vec.pyx":165
+ *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
+ *     cdef const unsigned char *bytez = utf8_word
+ *     cdef size_t num_bytes = len(utf8_word)             # <<<<<<<<<<<<<<
+ *     cdef size_t j, i, n
+ * 
+ */
+  if (unlikely(__pyx_v_utf8_word == Py_None)) {
+    PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
+    __PYX_ERR(0, 165, __pyx_L1_error)
+  }
+  __pyx_t_5 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_5 == ((Py_ssize_t)-1))) __PYX_ERR(0, 165, __pyx_L1_error)
+  __pyx_v_num_bytes = __pyx_t_5;
+
+  /* "gensim/models/_utils_any2vec.pyx":168
+ *     cdef size_t j, i, n
+ * 
+ *     ngrams = []             # <<<<<<<<<<<<<<
+ *     for i in range(num_bytes):
+ *         if bytez[i] & _mb_mask == _mb_start:
+ */
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 168, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_v_ngrams = ((PyObject*)__pyx_t_1);
+  __pyx_t_1 = 0;
+
+  /* "gensim/models/_utils_any2vec.pyx":169
+ * 
+ *     ngrams = []
+ *     for i in range(num_bytes):             # <<<<<<<<<<<<<<
+ *         if bytez[i] & _mb_mask == _mb_start:
+ *             continue
+ */
+  __pyx_t_6 = __pyx_v_num_bytes;
+  __pyx_t_7 = __pyx_t_6;
+  for (__pyx_t_8 = 0; __pyx_t_8 < __pyx_t_7; __pyx_t_8+=1) {
+    __pyx_v_i = __pyx_t_8;
+
+    /* "gensim/models/_utils_any2vec.pyx":170
+ *     ngrams = []
+ *     for i in range(num_bytes):
+ *         if bytez[i] & _mb_mask == _mb_start:             # <<<<<<<<<<<<<<
+ *             continue
+ * 
+ */
+    __pyx_t_9 = ((((__pyx_v_bytez[__pyx_v_i]) & __pyx_v__mb_mask) == __pyx_v__mb_start) != 0);
+    if (__pyx_t_9) {
+
+      /* "gensim/models/_utils_any2vec.pyx":171
+ *     for i in range(num_bytes):
+ *         if bytez[i] & _mb_mask == _mb_start:
+ *             continue             # <<<<<<<<<<<<<<
+ * 
+ *         j, n = i, 1
+ */
+      goto __pyx_L3_continue;
+
+      /* "gensim/models/_utils_any2vec.pyx":170
+ *     ngrams = []
+ *     for i in range(num_bytes):
+ *         if bytez[i] & _mb_mask == _mb_start:             # <<<<<<<<<<<<<<
+ *             continue
+ * 
+ */
+    }
+
+    /* "gensim/models/_utils_any2vec.pyx":173
+ *             continue
+ * 
+ *         j, n = i, 1             # <<<<<<<<<<<<<<
+ *         while j < num_bytes and n <= max_n:
+ *             j += 1
+ */
+    __pyx_t_10 = __pyx_v_i;
+    __pyx_t_11 = 1;
+    __pyx_v_j = __pyx_t_10;
+    __pyx_v_n = __pyx_t_11;
+
+    /* "gensim/models/_utils_any2vec.pyx":174
+ * 
+ *         j, n = i, 1
+ *         while j < num_bytes and n <= max_n:             # <<<<<<<<<<<<<<
+ *             j += 1
+ *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
+ */
+    while (1) {
+      __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
+      if (__pyx_t_12) {
+      } else {
+        __pyx_t_9 = __pyx_t_12;
+        goto __pyx_L8_bool_binop_done;
+      }
+      __pyx_t_12 = ((__pyx_v_n <= __pyx_v_max_n) != 0);
+      __pyx_t_9 = __pyx_t_12;
+      __pyx_L8_bool_binop_done:;
+      if (!__pyx_t_9) break;
+
+      /* "gensim/models/_utils_any2vec.pyx":175
+ *         j, n = i, 1
+ *         while j < num_bytes and n <= max_n:
+ *             j += 1             # <<<<<<<<<<<<<<
+ *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
+ *                 j += 1
+ */
+      __pyx_v_j = (__pyx_v_j + 1);
+
+      /* "gensim/models/_utils_any2vec.pyx":176
+ *         while j < num_bytes and n <= max_n:
+ *             j += 1
+ *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:             # <<<<<<<<<<<<<<
+ *                 j += 1
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+ */
+      while (1) {
+        __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
+        if (__pyx_t_12) {
+        } else {
+          __pyx_t_9 = __pyx_t_12;
+          goto __pyx_L12_bool_binop_done;
+        }
+        __pyx_t_12 = ((((__pyx_v_bytez[__pyx_v_j]) & __pyx_v__mb_mask) == __pyx_v__mb_start) != 0);
+        __pyx_t_9 = __pyx_t_12;
+        __pyx_L12_bool_binop_done:;
+        if (!__pyx_t_9) break;
+
+        /* "gensim/models/_utils_any2vec.pyx":177
+ *             j += 1
+ *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
+ *                 j += 1             # <<<<<<<<<<<<<<
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+ *                 ngram = bytes(bytez[i:j])
+ */
+        __pyx_v_j = (__pyx_v_j + 1);
+      }
+
+      /* "gensim/models/_utils_any2vec.pyx":178
+ *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
+ *                 j += 1
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
+ *                 ngram = bytes(bytez[i:j])
+ *                 ngrams.append(ngram)
+ */
+      __pyx_t_12 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
+      if (__pyx_t_12) {
+      } else {
+        __pyx_t_9 = __pyx_t_12;
+        goto __pyx_L15_bool_binop_done;
+      }
+      __pyx_t_13 = ((__pyx_v_n == 1) != 0);
+      if (__pyx_t_13) {
+      } else {
+        __pyx_t_12 = __pyx_t_13;
+        goto __pyx_L17_bool_binop_done;
+      }
+      __pyx_t_13 = ((__pyx_v_i == 0) != 0);
+      if (!__pyx_t_13) {
+      } else {
+        __pyx_t_12 = __pyx_t_13;
+        goto __pyx_L17_bool_binop_done;
+      }
+      __pyx_t_13 = ((__pyx_v_j == __pyx_v_num_bytes) != 0);
+      __pyx_t_12 = __pyx_t_13;
+      __pyx_L17_bool_binop_done:;
+      __pyx_t_13 = ((!__pyx_t_12) != 0);
+      __pyx_t_9 = __pyx_t_13;
+      __pyx_L15_bool_binop_done:;
+      if (__pyx_t_9) {
+
+        /* "gensim/models/_utils_any2vec.pyx":179
+ *                 j += 1
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+ *                 ngram = bytes(bytez[i:j])             # <<<<<<<<<<<<<<
+ *                 ngrams.append(ngram)
+ *             n += 1
+ */
+        __pyx_t_1 = __Pyx_PyBytes_FromStringAndSize(((const char*)__pyx_v_bytez) + __pyx_v_i, __pyx_v_j - __pyx_v_i); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 179, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 179, __pyx_L1_error)
+        __Pyx_GOTREF(__pyx_t_3);
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_3));
+        __pyx_t_3 = 0;
+
+        /* "gensim/models/_utils_any2vec.pyx":180
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+ *                 ngram = bytes(bytez[i:j])
+ *                 ngrams.append(ngram)             # <<<<<<<<<<<<<<
+ *             n += 1
+ *     return ngrams
+ */
+        __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_v_ngram); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 180, __pyx_L1_error)
+
+        /* "gensim/models/_utils_any2vec.pyx":178
+ *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
+ *                 j += 1
+ *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
+ *                 ngram = bytes(bytez[i:j])
+ *                 ngrams.append(ngram)
+ */
+      }
+
+      /* "gensim/models/_utils_any2vec.pyx":181
+ *                 ngram = bytes(bytez[i:j])
+ *                 ngrams.append(ngram)
+ *             n += 1             # <<<<<<<<<<<<<<
+ *     return ngrams
+ */
+      __pyx_v_n = (__pyx_v_n + 1);
+    }
+    __pyx_L3_continue:;
+  }
+
+  /* "gensim/models/_utils_any2vec.pyx":182
+ *                 ngrams.append(ngram)
+ *             n += 1
+ *     return ngrams             # <<<<<<<<<<<<<<
+ */
+  __Pyx_XDECREF(__pyx_r);
+  __Pyx_INCREF(__pyx_v_ngrams);
+  __pyx_r = __pyx_v_ngrams;
+  goto __pyx_L0;
+
+  /* "gensim/models/_utils_any2vec.pyx":160
+ * 
+ * 
+ * cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
+ *     cdef unsigned char _mb_mask = 0xC0
+ *     cdef unsigned char _mb_start = 0x80
+ */
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes_optimized", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_v_utf8_word);
+  __Pyx_XDECREF(__pyx_v_ngrams);
+  __Pyx_XDECREF(__pyx_v_ngram);
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+/* Python wrapper */
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_9compute_ngrams_bytes_optimized(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized[] = "compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n)";
+static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_9compute_ngrams_bytes_optimized(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+  PyObject *__pyx_v_word = 0;
+  unsigned int __pyx_v_min_n;
+  unsigned int __pyx_v_max_n;
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("compute_ngrams_bytes_optimized (wrapper)", 0);
+  {
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_word,&__pyx_n_s_min_n,&__pyx_n_s_max_n,0};
+    PyObject* values[3] = {0,0,0};
+    if (unlikely(__pyx_kwds)) {
+      Py_ssize_t kw_args;
+      const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
+      switch (pos_args) {
+        case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
+        CYTHON_FALLTHROUGH;
+        case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
+        CYTHON_FALLTHROUGH;
+        case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+        CYTHON_FALLTHROUGH;
+        case  0: break;
+        default: goto __pyx_L5_argtuple_error;
+      }
+      kw_args = PyDict_Size(__pyx_kwds);
+      switch (pos_args) {
+        case  0:
+        if (likely((values[0] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_word)) != 0)) kw_args--;
+        else goto __pyx_L5_argtuple_error;
+        CYTHON_FALLTHROUGH;
+        case  1:
+        if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes_optimized", 1, 3, 3, 1); __PYX_ERR(0, 160, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  2:
+        if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes_optimized", 1, 3, 3, 2); __PYX_ERR(0, 160, __pyx_L3_error)
+        }
+      }
+      if (unlikely(kw_args > 0)) {
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes_optimized") < 0)) __PYX_ERR(0, 160, __pyx_L3_error)
+      }
+    } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
+      goto __pyx_L5_argtuple_error;
+    } else {
+      values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+      values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
+      values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
+    }
+    __pyx_v_word = values[0];
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 160, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 160, __pyx_L3_error)
+  }
+  goto __pyx_L4_argument_unpacking_done;
+  __pyx_L5_argtuple_error:;
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes_optimized", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 160, __pyx_L3_error)
+  __pyx_L3_error:;
+  __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes_optimized", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_RefNannyFinishContext();
+  return NULL;
+  __pyx_L4_argument_unpacking_done:;
+  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized(__pyx_self, __pyx_v_word, __pyx_v_min_n, __pyx_v_max_n);
+
+  /* function exit code */
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  __Pyx_RefNannySetupContext("compute_ngrams_bytes_optimized", 0);
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes_optimized(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 160, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_r = __pyx_t_1;
+  __pyx_t_1 = 0;
+  goto __pyx_L0;
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes_optimized", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
 /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
@@ -5782,6 +6233,7 @@ static PyMethodDef __pyx_methods[] = {
   {"ft_hash_broken", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_broken},
   {"compute_ngrams", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_4compute_ngrams},
   {"compute_ngrams_bytes", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes},
+  {"compute_ngrams_bytes_optimized", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_9compute_ngrams_bytes_optimized, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized},
   {0, 0, 0, 0}
 };
 
@@ -9744,6 +10196,195 @@ static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
     return (int) -1;
 }
 
+/* CIntFromPy */
+static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *x) {
+    const size_t neg_one = (size_t) ((size_t) 0 - (size_t) 1), const_zero = (size_t) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(size_t) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(size_t, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (size_t) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (size_t) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(size_t, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(size_t) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) >= 2 * PyLong_SHIFT) {
+                            return (size_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(size_t) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) >= 3 * PyLong_SHIFT) {
+                            return (size_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(size_t) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) >= 4 * PyLong_SHIFT) {
+                            return (size_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (size_t) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(size_t) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(size_t, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(size_t) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(size_t, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (size_t) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(size_t, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(size_t,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(size_t) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT) {
+                            return (size_t) (((size_t)-1)*(((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(size_t) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT) {
+                            return (size_t) ((((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT) {
+                            return (size_t) (((size_t)-1)*(((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(size_t) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT) {
+                            return (size_t) ((((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 4 * PyLong_SHIFT) {
+                            return (size_t) (((size_t)-1)*(((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(size_t) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 4 * PyLong_SHIFT) {
+                            return (size_t) ((((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(size_t) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(size_t, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(size_t) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(size_t, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            size_t val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (size_t) -1;
+        }
+    } else {
+        size_t val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (size_t) -1;
+        val = __Pyx_PyInt_As_size_t(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to size_t");
+    return (size_t) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to size_t");
+    return (size_t) -1;
+}
+
 /* CIntFromPy */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
     const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index fe66c129c4..9c5965cd4b 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -155,3 +155,28 @@ cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
                 ngrams.append(ngram)
             n += 1
     return ngrams
+
+
+cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):
+    cdef unsigned char _mb_mask = 0xC0
+    cdef unsigned char _mb_start = 0x80
+    cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
+    cdef const unsigned char *bytez = utf8_word
+    cdef size_t num_bytes = len(utf8_word)
+    cdef size_t j, i, n
+
+    ngrams = []
+    for i in range(num_bytes):
+        if bytez[i] & _mb_mask == _mb_start:
+            continue
+
+        j, n = i, 1
+        while j < num_bytes and n <= max_n:
+            j += 1
+            while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
+                j += 1
+            if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+                ngram = bytes(bytez[i:j])
+                ngrams.append(ngram)
+            n += 1
+    return ngrams

From e87ca05e17fee6d843b66224b1185d0e9e65c6d2 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Thu, 24 Jan 2019 12:43:54 +1100
Subject: [PATCH 30/32] replacing non-optimized code with optimized code

---
 gensim/models/_utils_any2vec.c   | 4432 +++++++++---------------------
 gensim/models/_utils_any2vec.pyx |   43 +-
 2 files changed, 1309 insertions(+), 3166 deletions(-)

diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index 8c9052ba50..1e21639afa 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -844,7 +844,6 @@ static const char *__pyx_filename;
 static const char *__pyx_f[] = {
   "gensim/models/_utils_any2vec.pyx",
   "__init__.pxd",
-  "stringsource",
   "type.pxd",
 };
 
@@ -1062,7 +1061,6 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 
 
 /*--- Type declarations ---*/
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py;
 
 /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":815
  * ctypedef npy_longdouble longdouble_t
@@ -1100,19 +1098,6 @@ typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_complex_t;
 
-/* "cfunc.to_py":64
- * 
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
- *     def wrap(object b):
- *         """wrap(b)"""
- */
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py {
-  PyObject_HEAD
-  PyObject *(*__pyx_v_f)(PyObject *);
-};
-
-
 /* --- Runtime support code (head) --- */
 /* Refnanny.proto */
 #ifndef CYTHON_REFNANNY
@@ -1286,27 +1271,6 @@ static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
     PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
     const char* function_name);
 
-/* GetModuleGlobalName.proto */
-#if CYTHON_USE_DICT_VERSIONS
-#define __Pyx_GetModuleGlobalName(var, name)  {\
-    static PY_UINT64_T __pyx_dict_version = 0;\
-    static PyObject *__pyx_dict_cached_value = NULL;\
-    (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
-        (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
-        __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
-    PY_UINT64_T __pyx_dict_version;\
-    PyObject *__pyx_dict_cached_value;\
-    (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
-#else
-#define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
-#endif
-
 /* PyCFunctionFastCall.proto */
 #if CYTHON_FAST_PYCCALL
 static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
@@ -1348,28 +1312,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject
 /* PyObjectCallOneArg.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
 
-/* GetItemInt.proto */
-#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
-    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
-    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) :\
-    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) :\
-               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
-#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
-    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
-    __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\
-    (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL))
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
-                                                              int wraparound, int boundscheck);
-#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
-    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
-    __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\
-    (PyErr_SetString(PyExc_IndexError, "tuple index out of range"), (PyObject*)NULL))
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
-                                                              int wraparound, int boundscheck);
-static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
-                                                     int is_list, int wraparound, int boundscheck);
-
 /* PyThreadStateGet.proto */
 #if CYTHON_FAST_THREAD_STATE
 #define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
@@ -1464,70 +1406,6 @@ static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
 #endif
 
-/* FetchCommonType.proto */
-static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type);
-
-/* CythonFunction.proto */
-#define __Pyx_CyFunction_USED 1
-#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
-#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
-#define __Pyx_CYFUNCTION_CCLASS        0x04
-#define __Pyx_CyFunction_GetClosure(f)\
-    (((__pyx_CyFunctionObject *) (f))->func_closure)
-#define __Pyx_CyFunction_GetClassObj(f)\
-    (((__pyx_CyFunctionObject *) (f))->func_classobj)
-#define __Pyx_CyFunction_Defaults(type, f)\
-    ((type *)(((__pyx_CyFunctionObject *) (f))->defaults))
-#define __Pyx_CyFunction_SetDefaultsGetter(f, g)\
-    ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g)
-typedef struct {
-    PyCFunctionObject func;
-#if PY_VERSION_HEX < 0x030500A0
-    PyObject *func_weakreflist;
-#endif
-    PyObject *func_dict;
-    PyObject *func_name;
-    PyObject *func_qualname;
-    PyObject *func_doc;
-    PyObject *func_globals;
-    PyObject *func_code;
-    PyObject *func_closure;
-    PyObject *func_classobj;
-    void *defaults;
-    int defaults_pyobjects;
-    int flags;
-    PyObject *defaults_tuple;
-    PyObject *defaults_kwdict;
-    PyObject *(*defaults_getter)(PyObject *);
-    PyObject *func_annotations;
-} __pyx_CyFunctionObject;
-static PyTypeObject *__pyx_CyFunctionType = 0;
-#define __Pyx_CyFunction_Check(obj)  (__Pyx_TypeCheck(obj, __pyx_CyFunctionType))
-#define __Pyx_CyFunction_NewEx(ml, flags, qualname, self, module, globals, code)\
-    __Pyx_CyFunction_New(__pyx_CyFunctionType, ml, flags, qualname, self, module, globals, code)
-static PyObject *__Pyx_CyFunction_New(PyTypeObject *, PyMethodDef *ml,
-                                      int flags, PyObject* qualname,
-                                      PyObject *self,
-                                      PyObject *module, PyObject *globals,
-                                      PyObject* code);
-static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
-                                                         size_t size,
-                                                         int pyobjects);
-static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m,
-                                                            PyObject *tuple);
-static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *m,
-                                                             PyObject *dict);
-static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m,
-                                                              PyObject *dict);
-static int __pyx_CyFunction_init(void);
-
-/* PyObject_GenericGetAttrNoDict.proto */
-#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
-static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name);
-#else
-#define __Pyx_PyObject_GenericGetAttrNoDict PyObject_GenericGetAttr
-#endif
-
 /* TypeImport.proto */
 #ifndef __PYX_HAVE_RT_ImportType_proto
 #define __PYX_HAVE_RT_ImportType_proto
@@ -1577,12 +1455,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value);
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value);
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
-
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
-
 /* RealImag.proto */
 #if CYTHON_CCOMPLEX
   #ifdef __cplusplus
@@ -1681,6 +1553,9 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
     #endif
 #endif
 
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
+
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value);
 
@@ -1691,10 +1566,13 @@ static CYTHON_INLINE unsigned int __Pyx_PyInt_As_unsigned_int(PyObject *);
 static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *);
 
 /* CIntFromPy.proto */
-static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
+static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *);
 
 /* CIntFromPy.proto */
-static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *);
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
+
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
 
 /* CIntFromPy.proto */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
@@ -1749,15 +1627,12 @@ static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
 static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/
 
 /* Module declarations from 'gensim.models._utils_any2vec' */
-static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
+static unsigned char __pyx_v_6gensim_6models_14_utils_any2vec__MB_MASK;
+static unsigned char __pyx_v_6gensim_6models_14_utils_any2vec__MB_START;
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_bytes(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_ft_hash_broken(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py3(PyObject *); /*proto*/
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py2(PyObject *); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes_optimized(PyObject *, unsigned int, unsigned int, int __pyx_skip_dispatch); /*proto*/
-static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*)(PyObject *)); /*proto*/
 #define __Pyx_MODULE_NAME "gensim.models._utils_any2vec"
 extern int __pyx_module_is_main_gensim__models___utils_any2vec;
 int __pyx_module_is_main_gensim__models___utils_any2vec = 0;
@@ -1768,7 +1643,6 @@ static PyObject *__pyx_builtin_ValueError;
 static PyObject *__pyx_builtin_RuntimeError;
 static PyObject *__pyx_builtin_ImportError;
 static const char __pyx_k_[] = "<";
-static const char __pyx_k_b[] = "b";
 static const char __pyx_k_s[] = "<%s>";
 static const char __pyx_k__2[] = ">";
 static const char __pyx_k_np[] = "np";
@@ -1778,7 +1652,6 @@ static const char __pyx_k_main[] = "__main__";
 static const char __pyx_k_name[] = "__name__";
 static const char __pyx_k_test[] = "__test__";
 static const char __pyx_k_word[] = "word";
-static const char __pyx_k_wrap[] = "wrap";
 static const char __pyx_k_max_n[] = "max_n";
 static const char __pyx_k_min_n[] = "min_n";
 static const char __pyx_k_numpy[] = "numpy";
@@ -1786,17 +1659,11 @@ static const char __pyx_k_range[] = "range";
 static const char __pyx_k_utf_8[] = "utf-8";
 static const char __pyx_k_encode[] = "encode";
 static const char __pyx_k_import[] = "__import__";
-static const char __pyx_k_MB_MASK[] = "_MB_MASK";
-static const char __pyx_k_MB_START[] = "_MB_START";
 static const char __pyx_k_ValueError[] = "ValueError";
 static const char __pyx_k_ImportError[] = "ImportError";
-static const char __pyx_k_cfunc_to_py[] = "cfunc.to_py";
 static const char __pyx_k_RuntimeError[] = "RuntimeError";
-static const char __pyx_k_stringsource[] = "stringsource";
-static const char __pyx_k_is_utf8_continue[] = "_is_utf8_continue";
 static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
 static const char __pyx_k_ndarray_is_not_C_contiguous[] = "ndarray is not C contiguous";
-static const char __pyx_k_Pyx_CFunc_object____object___t[] = "__Pyx_CFunc_object____object___to_py.<locals>.wrap";
 static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
 static const char __pyx_k_unknown_dtype_code_in_numpy_pxd[] = "unknown dtype code in numpy.pxd (%d)";
 static const char __pyx_k_Format_string_allocated_too_shor[] = "Format string allocated too short, see comment in numpy.pxd";
@@ -1809,20 +1676,14 @@ static PyObject *__pyx_kp_u_;
 static PyObject *__pyx_kp_u_Format_string_allocated_too_shor;
 static PyObject *__pyx_kp_u_Format_string_allocated_too_shor_2;
 static PyObject *__pyx_n_s_ImportError;
-static PyObject *__pyx_n_s_MB_MASK;
-static PyObject *__pyx_n_s_MB_START;
 static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
 static PyObject *__pyx_n_s_PY2;
-static PyObject *__pyx_n_s_Pyx_CFunc_object____object___t;
 static PyObject *__pyx_n_s_RuntimeError;
 static PyObject *__pyx_n_s_ValueError;
 static PyObject *__pyx_kp_u__2;
-static PyObject *__pyx_n_s_b;
-static PyObject *__pyx_n_s_cfunc_to_py;
 static PyObject *__pyx_n_s_cline_in_traceback;
 static PyObject *__pyx_n_s_encode;
 static PyObject *__pyx_n_s_import;
-static PyObject *__pyx_n_s_is_utf8_continue;
 static PyObject *__pyx_n_s_main;
 static PyObject *__pyx_n_s_max_n;
 static PyObject *__pyx_n_s_min_n;
@@ -1836,25 +1697,18 @@ static PyObject *__pyx_kp_s_numpy_core_umath_failed_to_impor;
 static PyObject *__pyx_n_s_range;
 static PyObject *__pyx_kp_s_s;
 static PyObject *__pyx_n_s_six;
-static PyObject *__pyx_kp_s_stringsource;
 static PyObject *__pyx_n_s_test;
 static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
 static PyObject *__pyx_kp_s_utf_8;
 static PyObject *__pyx_n_s_word;
-static PyObject *__pyx_n_s_wrap;
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_ft_hash_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_bytez); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_2ft_hash_broken(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_string); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n); /* proto */
 static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
 static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
-static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /* proto */
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_int_0;
 static PyObject *__pyx_int_1;
-static PyObject *__pyx_int_128;
-static PyObject *__pyx_int_192;
 static PyObject *__pyx_tuple__3;
 static PyObject *__pyx_tuple__4;
 static PyObject *__pyx_tuple__5;
@@ -1862,8 +1716,6 @@ static PyObject *__pyx_tuple__6;
 static PyObject *__pyx_tuple__7;
 static PyObject *__pyx_tuple__8;
 static PyObject *__pyx_tuple__9;
-static PyObject *__pyx_tuple__10;
-static PyObject *__pyx_codeobj__11;
 /* Late includes */
 
 /* "gensim/models/_utils_any2vec.pyx":22
@@ -2569,129 +2421,6 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_4compute_ngrams(CYTHO
 }
 
 /* "gensim/models/_utils_any2vec.pyx":104
- * 
- * 
- * cdef _is_utf8_continue_py3(b):             # <<<<<<<<<<<<<<
- *     return b & _MB_MASK == _MB_START
- * 
- */
-
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py3(PyObject *__pyx_v_b) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  PyObject *__pyx_t_2 = NULL;
-  PyObject *__pyx_t_3 = NULL;
-  __Pyx_RefNannySetupContext("_is_utf8_continue_py3", 0);
-
-  /* "gensim/models/_utils_any2vec.pyx":105
- * 
- * cdef _is_utf8_continue_py3(b):
- *     return b & _MB_MASK == _MB_START             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __Pyx_XDECREF(__pyx_r);
-  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyNumber_And(__pyx_v_b, __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 105, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_2);
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_t_1, Py_EQ); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_r = __pyx_t_3;
-  __pyx_t_3 = 0;
-  goto __pyx_L0;
-
-  /* "gensim/models/_utils_any2vec.pyx":104
- * 
- * 
- * cdef _is_utf8_continue_py3(b):             # <<<<<<<<<<<<<<
- *     return b & _MB_MASK == _MB_START
- * 
- */
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_AddTraceback("gensim.models._utils_any2vec._is_utf8_continue_py3", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = 0;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "gensim/models/_utils_any2vec.pyx":108
- * 
- * 
- * cdef _is_utf8_continue_py2(b):             # <<<<<<<<<<<<<<
- *     return ord(b) & _MB_MASK == _MB_START
- * 
- */
-
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py2(PyObject *__pyx_v_b) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  long __pyx_t_1;
-  PyObject *__pyx_t_2 = NULL;
-  PyObject *__pyx_t_3 = NULL;
-  PyObject *__pyx_t_4 = NULL;
-  __Pyx_RefNannySetupContext("_is_utf8_continue_py2", 0);
-
-  /* "gensim/models/_utils_any2vec.pyx":109
- * 
- * cdef _is_utf8_continue_py2(b):
- *     return ord(b) & _MB_MASK == _MB_START             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __Pyx_PyObject_Ord(__pyx_v_b); if (unlikely(__pyx_t_1 == ((long)(long)(Py_UCS4)-1))) __PYX_ERR(0, 109, __pyx_L1_error)
-  __pyx_t_2 = __Pyx_PyInt_From_long(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_2);
-  __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_MASK); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 109, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_4 = PyNumber_And(__pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 109, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_4);
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_MB_START); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 109, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_r = __pyx_t_2;
-  __pyx_t_2 = 0;
-  goto __pyx_L0;
-
-  /* "gensim/models/_utils_any2vec.pyx":108
- * 
- * 
- * cdef _is_utf8_continue_py2(b):             # <<<<<<<<<<<<<<
- *     return ord(b) & _MB_MASK == _MB_START
- * 
- */
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_XDECREF(__pyx_t_4);
-  __Pyx_AddTraceback("gensim.models._utils_any2vec._is_utf8_continue_py2", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = 0;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "gensim/models/_utils_any2vec.pyx":115
  * 
  * 
  * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -2702,10 +2431,11 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py2(
 static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
 static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n, CYTHON_UNUSED int __pyx_skip_dispatch) {
   PyObject *__pyx_v_utf8_word = 0;
-  int __pyx_v_num_bytes;
-  int __pyx_v_j;
-  int __pyx_v_i;
-  int __pyx_v_n;
+  unsigned char const *__pyx_v_bytez;
+  size_t __pyx_v_num_bytes;
+  size_t __pyx_v_j;
+  size_t __pyx_v_i;
+  size_t __pyx_v_n;
   PyObject *__pyx_v_ngrams = NULL;
   PyObject *__pyx_v_ngram = NULL;
   PyObject *__pyx_r = NULL;
@@ -2713,29 +2443,29 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
-  Py_ssize_t __pyx_t_4;
-  int __pyx_t_5;
-  int __pyx_t_6;
-  int __pyx_t_7;
-  PyObject *__pyx_t_8 = NULL;
+  unsigned char const *__pyx_t_4;
+  Py_ssize_t __pyx_t_5;
+  size_t __pyx_t_6;
+  size_t __pyx_t_7;
+  size_t __pyx_t_8;
   int __pyx_t_9;
-  int __pyx_t_10;
-  int __pyx_t_11;
+  size_t __pyx_t_10;
+  size_t __pyx_t_11;
   int __pyx_t_12;
   int __pyx_t_13;
   int __pyx_t_14;
   __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":139
+  /* "gensim/models/_utils_any2vec.pyx":128
  * 
  *     """
  *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")             # <<<<<<<<<<<<<<
- *     cdef int num_bytes = len(utf8_word)
- *     cdef int j, i, n
+ *     cdef const unsigned char *bytez = utf8_word
+ *     cdef size_t num_bytes = len(utf8_word)
  */
-  __pyx_t_2 = __Pyx_PyString_FormatSafe(__pyx_kp_s_s, __pyx_v_word); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 139, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyString_FormatSafe(__pyx_kp_s_s, __pyx_v_word); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_encode); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 139, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_encode); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_2 = NULL;
@@ -2750,101 +2480,94 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   }
   __pyx_t_1 = (__pyx_t_2) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_2, __pyx_kp_s_utf_8) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_kp_s_utf_8);
   __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 139, __pyx_L1_error)
+  if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  if (!(likely(PyBytes_CheckExact(__pyx_t_1))||((__pyx_t_1) == Py_None)||(PyErr_Format(PyExc_TypeError, "Expected %.16s, got %.200s", "bytes", Py_TYPE(__pyx_t_1)->tp_name), 0))) __PYX_ERR(0, 139, __pyx_L1_error)
+  if (!(likely(PyBytes_CheckExact(__pyx_t_1))||((__pyx_t_1) == Py_None)||(PyErr_Format(PyExc_TypeError, "Expected %.16s, got %.200s", "bytes", Py_TYPE(__pyx_t_1)->tp_name), 0))) __PYX_ERR(0, 128, __pyx_L1_error)
   __pyx_v_utf8_word = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":140
+  /* "gensim/models/_utils_any2vec.pyx":129
  *     """
  *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
- *     cdef int num_bytes = len(utf8_word)             # <<<<<<<<<<<<<<
- *     cdef int j, i, n
+ *     cdef const unsigned char *bytez = utf8_word             # <<<<<<<<<<<<<<
+ *     cdef size_t num_bytes = len(utf8_word)
+ *     cdef size_t j, i, n
+ */
+  if (unlikely(__pyx_v_utf8_word == Py_None)) {
+    PyErr_SetString(PyExc_TypeError, "expected bytes, NoneType found");
+    __PYX_ERR(0, 129, __pyx_L1_error)
+  }
+  __pyx_t_4 = __Pyx_PyBytes_AsUString(__pyx_v_utf8_word); if (unlikely((!__pyx_t_4) && PyErr_Occurred())) __PYX_ERR(0, 129, __pyx_L1_error)
+  __pyx_v_bytez = __pyx_t_4;
+
+  /* "gensim/models/_utils_any2vec.pyx":130
+ *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
+ *     cdef const unsigned char *bytez = utf8_word
+ *     cdef size_t num_bytes = len(utf8_word)             # <<<<<<<<<<<<<<
+ *     cdef size_t j, i, n
  * 
  */
   if (unlikely(__pyx_v_utf8_word == Py_None)) {
     PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
-    __PYX_ERR(0, 140, __pyx_L1_error)
+    __PYX_ERR(0, 130, __pyx_L1_error)
   }
-  __pyx_t_4 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_4 == ((Py_ssize_t)-1))) __PYX_ERR(0, 140, __pyx_L1_error)
-  __pyx_v_num_bytes = __pyx_t_4;
+  __pyx_t_5 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_5 == ((Py_ssize_t)-1))) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_v_num_bytes = __pyx_t_5;
 
-  /* "gensim/models/_utils_any2vec.pyx":143
- *     cdef int j, i, n
+  /* "gensim/models/_utils_any2vec.pyx":133
+ *     cdef size_t j, i, n
  * 
  *     ngrams = []             # <<<<<<<<<<<<<<
  *     for i in range(num_bytes):
- *         if _is_utf8_continue(utf8_word[i]):
+ *         if bytez[i] & _MB_MASK == _MB_START:
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 143, __pyx_L1_error)
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 133, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_v_ngrams = ((PyObject*)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "gensim/models/_utils_any2vec.pyx":144
+  /* "gensim/models/_utils_any2vec.pyx":134
  * 
  *     ngrams = []
  *     for i in range(num_bytes):             # <<<<<<<<<<<<<<
- *         if _is_utf8_continue(utf8_word[i]):
+ *         if bytez[i] & _MB_MASK == _MB_START:
  *             continue
  */
-  __pyx_t_5 = __pyx_v_num_bytes;
-  __pyx_t_6 = __pyx_t_5;
-  for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
-    __pyx_v_i = __pyx_t_7;
+  __pyx_t_6 = __pyx_v_num_bytes;
+  __pyx_t_7 = __pyx_t_6;
+  for (__pyx_t_8 = 0; __pyx_t_8 < __pyx_t_7; __pyx_t_8+=1) {
+    __pyx_v_i = __pyx_t_8;
 
-    /* "gensim/models/_utils_any2vec.pyx":145
+    /* "gensim/models/_utils_any2vec.pyx":135
  *     ngrams = []
  *     for i in range(num_bytes):
- *         if _is_utf8_continue(utf8_word[i]):             # <<<<<<<<<<<<<<
+ *         if bytez[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
  *             continue
  * 
  */
-    __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_is_utf8_continue); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 145, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_i, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 145, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_8 = NULL;
-    if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_3))) {
-      __pyx_t_8 = PyMethod_GET_SELF(__pyx_t_3);
-      if (likely(__pyx_t_8)) {
-        PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_3);
-        __Pyx_INCREF(__pyx_t_8);
-        __Pyx_INCREF(function);
-        __Pyx_DECREF_SET(__pyx_t_3, function);
-      }
-    }
-    __pyx_t_1 = (__pyx_t_8) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_8, __pyx_t_2) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_t_2);
-    __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 145, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_9 < 0)) __PYX_ERR(0, 145, __pyx_L1_error)
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __pyx_t_9 = ((((__pyx_v_bytez[__pyx_v_i]) & __pyx_v_6gensim_6models_14_utils_any2vec__MB_MASK) == __pyx_v_6gensim_6models_14_utils_any2vec__MB_START) != 0);
     if (__pyx_t_9) {
 
-      /* "gensim/models/_utils_any2vec.pyx":146
+      /* "gensim/models/_utils_any2vec.pyx":136
  *     for i in range(num_bytes):
- *         if _is_utf8_continue(utf8_word[i]):
+ *         if bytez[i] & _MB_MASK == _MB_START:
  *             continue             # <<<<<<<<<<<<<<
  * 
  *         j, n = i, 1
  */
       goto __pyx_L3_continue;
 
-      /* "gensim/models/_utils_any2vec.pyx":145
+      /* "gensim/models/_utils_any2vec.pyx":135
  *     ngrams = []
  *     for i in range(num_bytes):
- *         if _is_utf8_continue(utf8_word[i]):             # <<<<<<<<<<<<<<
+ *         if bytez[i] & _MB_MASK == _MB_START:             # <<<<<<<<<<<<<<
  *             continue
  * 
  */
     }
 
-    /* "gensim/models/_utils_any2vec.pyx":148
+    /* "gensim/models/_utils_any2vec.pyx":138
  *             continue
  * 
  *         j, n = i, 1             # <<<<<<<<<<<<<<
@@ -2856,12 +2579,12 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
     __pyx_v_j = __pyx_t_10;
     __pyx_v_n = __pyx_t_11;
 
-    /* "gensim/models/_utils_any2vec.pyx":149
+    /* "gensim/models/_utils_any2vec.pyx":139
  * 
  *         j, n = i, 1
  *         while j < num_bytes and n <= max_n:             # <<<<<<<<<<<<<<
  *             j += 1
- *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
+ *             while j < num_bytes and (bytez[j] & _MB_MASK) == _MB_START:
  */
     while (1) {
       __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
@@ -2875,19 +2598,19 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
       __pyx_L8_bool_binop_done:;
       if (!__pyx_t_9) break;
 
-      /* "gensim/models/_utils_any2vec.pyx":150
+      /* "gensim/models/_utils_any2vec.pyx":140
  *         j, n = i, 1
  *         while j < num_bytes and n <= max_n:
  *             j += 1             # <<<<<<<<<<<<<<
- *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
+ *             while j < num_bytes and (bytez[j] & _MB_MASK) == _MB_START:
  *                 j += 1
  */
       __pyx_v_j = (__pyx_v_j + 1);
 
-      /* "gensim/models/_utils_any2vec.pyx":151
+      /* "gensim/models/_utils_any2vec.pyx":141
  *         while j < num_bytes and n <= max_n:
  *             j += 1
- *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):             # <<<<<<<<<<<<<<
+ *             while j < num_bytes and (bytez[j] & _MB_MASK) == _MB_START:             # <<<<<<<<<<<<<<
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
  */
@@ -2898,47 +2621,26 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
           __pyx_t_9 = __pyx_t_12;
           goto __pyx_L12_bool_binop_done;
         }
-        __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_is_utf8_continue); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 151, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_utf8_word, __pyx_v_j, int, 1, __Pyx_PyInt_From_int, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 151, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_8 = NULL;
-        if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_3))) {
-          __pyx_t_8 = PyMethod_GET_SELF(__pyx_t_3);
-          if (likely(__pyx_t_8)) {
-            PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_3);
-            __Pyx_INCREF(__pyx_t_8);
-            __Pyx_INCREF(function);
-            __Pyx_DECREF_SET(__pyx_t_3, function);
-          }
-        }
-        __pyx_t_1 = (__pyx_t_8) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_8, __pyx_t_2) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_t_2);
-        __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 151, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_1);
-        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-        __pyx_t_12 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_12 < 0)) __PYX_ERR(0, 151, __pyx_L1_error)
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __pyx_t_12 = ((((__pyx_v_bytez[__pyx_v_j]) & __pyx_v_6gensim_6models_14_utils_any2vec__MB_MASK) == __pyx_v_6gensim_6models_14_utils_any2vec__MB_START) != 0);
         __pyx_t_9 = __pyx_t_12;
         __pyx_L12_bool_binop_done:;
         if (!__pyx_t_9) break;
 
-        /* "gensim/models/_utils_any2vec.pyx":152
+        /* "gensim/models/_utils_any2vec.pyx":142
  *             j += 1
- *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
+ *             while j < num_bytes and (bytez[j] & _MB_MASK) == _MB_START:
  *                 j += 1             # <<<<<<<<<<<<<<
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
- *                 ngram = bytes(utf8_word[i:j])
+ *                 ngram = bytes(bytez[i:j])
  */
         __pyx_v_j = (__pyx_v_j + 1);
       }
 
-      /* "gensim/models/_utils_any2vec.pyx":153
- *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
+      /* "gensim/models/_utils_any2vec.pyx":143
+ *             while j < num_bytes and (bytez[j] & _MB_MASK) == _MB_START:
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
- *                 ngram = bytes(utf8_word[i:j])
+ *                 ngram = bytes(bytez[i:j])
  *                 ngrams.append(ngram)
  */
       __pyx_t_12 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
@@ -2967,68 +2669,61 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
       __pyx_L15_bool_binop_done:;
       if (__pyx_t_9) {
 
-        /* "gensim/models/_utils_any2vec.pyx":154
+        /* "gensim/models/_utils_any2vec.pyx":144
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
- *                 ngram = bytes(utf8_word[i:j])             # <<<<<<<<<<<<<<
+ *                 ngram = bytes(bytez[i:j])             # <<<<<<<<<<<<<<
  *                 ngrams.append(ngram)
  *             n += 1
  */
-        if (unlikely(__pyx_v_utf8_word == Py_None)) {
-          PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
-          __PYX_ERR(0, 154, __pyx_L1_error)
-        }
-        __pyx_t_1 = PySequence_GetSlice(__pyx_v_utf8_word, __pyx_v_i, __pyx_v_j); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 154, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_PyBytes_FromStringAndSize(((const char*)__pyx_v_bytez) + __pyx_v_i, __pyx_v_j - __pyx_v_i); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 144, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 154, __pyx_L1_error)
+        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 144, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_3));
         __pyx_t_3 = 0;
 
-        /* "gensim/models/_utils_any2vec.pyx":155
+        /* "gensim/models/_utils_any2vec.pyx":145
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
- *                 ngram = bytes(utf8_word[i:j])
+ *                 ngram = bytes(bytez[i:j])
  *                 ngrams.append(ngram)             # <<<<<<<<<<<<<<
  *             n += 1
  *     return ngrams
  */
-        __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_v_ngram); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 155, __pyx_L1_error)
+        __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_v_ngram); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 145, __pyx_L1_error)
 
-        /* "gensim/models/_utils_any2vec.pyx":153
- *             while j < num_bytes and _is_utf8_continue(utf8_word[j]):
+        /* "gensim/models/_utils_any2vec.pyx":143
+ *             while j < num_bytes and (bytez[j] & _MB_MASK) == _MB_START:
  *                 j += 1
  *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
- *                 ngram = bytes(utf8_word[i:j])
+ *                 ngram = bytes(bytez[i:j])
  *                 ngrams.append(ngram)
  */
       }
 
-      /* "gensim/models/_utils_any2vec.pyx":156
- *                 ngram = bytes(utf8_word[i:j])
+      /* "gensim/models/_utils_any2vec.pyx":146
+ *                 ngram = bytes(bytez[i:j])
  *                 ngrams.append(ngram)
  *             n += 1             # <<<<<<<<<<<<<<
  *     return ngrams
- * 
  */
       __pyx_v_n = (__pyx_v_n + 1);
     }
     __pyx_L3_continue:;
   }
 
-  /* "gensim/models/_utils_any2vec.pyx":157
+  /* "gensim/models/_utils_any2vec.pyx":147
  *                 ngrams.append(ngram)
  *             n += 1
  *     return ngrams             # <<<<<<<<<<<<<<
- * 
- * 
  */
   __Pyx_XDECREF(__pyx_r);
   __Pyx_INCREF(__pyx_v_ngrams);
   __pyx_r = __pyx_v_ngrams;
   goto __pyx_L0;
 
-  /* "gensim/models/_utils_any2vec.pyx":115
+  /* "gensim/models/_utils_any2vec.pyx":104
  * 
  * 
  * cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
@@ -3041,7 +2736,6 @@ static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(P
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
   __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_XDECREF(__pyx_t_8);
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = 0;
   __pyx_L0:;
@@ -3088,17 +2782,17 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 1); __PYX_ERR(0, 115, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 1); __PYX_ERR(0, 104, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 2); __PYX_ERR(0, 115, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, 2); __PYX_ERR(0, 104, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes") < 0)) __PYX_ERR(0, 115, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes") < 0)) __PYX_ERR(0, 104, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -3108,12 +2802,12 @@ static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes
       values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
     }
     __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 115, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 115, __pyx_L3_error)
+    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 104, __pyx_L3_error)
+    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 104, __pyx_L3_error)
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 115, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 104, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -3132,7 +2826,7 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("compute_ngrams_bytes", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 115, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -3149,1382 +2843,939 @@ static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes
   return __pyx_r;
 }
 
-/* "gensim/models/_utils_any2vec.pyx":160
- * 
- * 
- * cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
- *     cdef unsigned char _mb_mask = 0xC0
- *     cdef unsigned char _mb_start = 0x80
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
+ *         # experimental exception made for __getbuffer__ and __releasebuffer__
+ *         # -- the details of this may change.
+ *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
+ *             # This implementation of getbuffer is geared towards Cython
+ *             # requirements, and does not yet fulfill the PEP.
  */
 
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_9compute_ngrams_bytes_optimized(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyObject *__pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes_optimized(PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n, CYTHON_UNUSED int __pyx_skip_dispatch) {
-  unsigned char __pyx_v__mb_mask;
-  unsigned char __pyx_v__mb_start;
-  PyObject *__pyx_v_utf8_word = 0;
-  unsigned char const *__pyx_v_bytez;
-  size_t __pyx_v_num_bytes;
-  size_t __pyx_v_j;
-  size_t __pyx_v_i;
-  size_t __pyx_v_n;
-  PyObject *__pyx_v_ngrams = NULL;
-  PyObject *__pyx_v_ngram = NULL;
-  PyObject *__pyx_r = NULL;
+/* Python wrapper */
+static CYTHON_UNUSED int __pyx_pw_5numpy_7ndarray_1__getbuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /*proto*/
+static CYTHON_UNUSED int __pyx_pw_5numpy_7ndarray_1__getbuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags) {
+  int __pyx_r;
   __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  PyObject *__pyx_t_2 = NULL;
+  __Pyx_RefNannySetupContext("__getbuffer__ (wrapper)", 0);
+  __pyx_r = __pyx_pf_5numpy_7ndarray___getbuffer__(((PyArrayObject *)__pyx_v_self), ((Py_buffer *)__pyx_v_info), ((int)__pyx_v_flags));
+
+  /* function exit code */
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags) {
+  int __pyx_v_i;
+  int __pyx_v_ndim;
+  int __pyx_v_endian_detector;
+  int __pyx_v_little_endian;
+  int __pyx_v_t;
+  char *__pyx_v_f;
+  PyArray_Descr *__pyx_v_descr = 0;
+  int __pyx_v_offset;
+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  int __pyx_t_1;
+  int __pyx_t_2;
   PyObject *__pyx_t_3 = NULL;
-  unsigned char const *__pyx_t_4;
-  Py_ssize_t __pyx_t_5;
-  size_t __pyx_t_6;
-  size_t __pyx_t_7;
-  size_t __pyx_t_8;
-  int __pyx_t_9;
-  size_t __pyx_t_10;
-  size_t __pyx_t_11;
-  int __pyx_t_12;
-  int __pyx_t_13;
-  int __pyx_t_14;
-  __Pyx_RefNannySetupContext("compute_ngrams_bytes_optimized", 0);
+  int __pyx_t_4;
+  int __pyx_t_5;
+  int __pyx_t_6;
+  PyArray_Descr *__pyx_t_7;
+  PyObject *__pyx_t_8 = NULL;
+  char *__pyx_t_9;
+  if (__pyx_v_info == NULL) {
+    PyErr_SetString(PyExc_BufferError, "PyObject_GetBuffer: view==NULL argument is obsolete");
+    return -1;
+  }
+  __Pyx_RefNannySetupContext("__getbuffer__", 0);
+  __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
+  __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "gensim/models/_utils_any2vec.pyx":161
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
+ * 
+ *             cdef int i, ndim
+ *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
+ *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
- * cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):
- *     cdef unsigned char _mb_mask = 0xC0             # <<<<<<<<<<<<<<
- *     cdef unsigned char _mb_start = 0x80
- *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
  */
-  __pyx_v__mb_mask = 0xC0;
+  __pyx_v_endian_detector = 1;
 
-  /* "gensim/models/_utils_any2vec.pyx":162
- * cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):
- *     cdef unsigned char _mb_mask = 0xC0
- *     cdef unsigned char _mb_start = 0x80             # <<<<<<<<<<<<<<
- *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
- *     cdef const unsigned char *bytez = utf8_word
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
+ *             cdef int i, ndim
+ *             cdef int endian_detector = 1
+ *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
+ * 
+ *             ndim = PyArray_NDIM(self)
  */
-  __pyx_v__mb_start = 0x80;
+  __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "gensim/models/_utils_any2vec.pyx":163
- *     cdef unsigned char _mb_mask = 0xC0
- *     cdef unsigned char _mb_start = 0x80
- *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")             # <<<<<<<<<<<<<<
- *     cdef const unsigned char *bytez = utf8_word
- *     cdef size_t num_bytes = len(utf8_word)
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
+ *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
+ * 
+ *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
+ * 
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  */
-  __pyx_t_2 = __Pyx_PyString_FormatSafe(__pyx_kp_s_s, __pyx_v_word); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 163, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_encode); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 163, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_3);
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = NULL;
-  if (CYTHON_UNPACK_METHODS && likely(PyMethod_Check(__pyx_t_3))) {
-    __pyx_t_2 = PyMethod_GET_SELF(__pyx_t_3);
-    if (likely(__pyx_t_2)) {
-      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_3);
-      __Pyx_INCREF(__pyx_t_2);
-      __Pyx_INCREF(function);
-      __Pyx_DECREF_SET(__pyx_t_3, function);
-    }
-  }
-  __pyx_t_1 = (__pyx_t_2) ? __Pyx_PyObject_Call2Args(__pyx_t_3, __pyx_t_2, __pyx_kp_s_utf_8) : __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_kp_s_utf_8);
-  __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 163, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  if (!(likely(PyBytes_CheckExact(__pyx_t_1))||((__pyx_t_1) == Py_None)||(PyErr_Format(PyExc_TypeError, "Expected %.16s, got %.200s", "bytes", Py_TYPE(__pyx_t_1)->tp_name), 0))) __PYX_ERR(0, 163, __pyx_L1_error)
-  __pyx_v_utf8_word = ((PyObject*)__pyx_t_1);
-  __pyx_t_1 = 0;
+  __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "gensim/models/_utils_any2vec.pyx":164
- *     cdef unsigned char _mb_start = 0x80
- *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
- *     cdef const unsigned char *bytez = utf8_word             # <<<<<<<<<<<<<<
- *     cdef size_t num_bytes = len(utf8_word)
- *     cdef size_t j, i, n
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+ *             ndim = PyArray_NDIM(self)
+ * 
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not C contiguous")
  */
-  if (unlikely(__pyx_v_utf8_word == Py_None)) {
-    PyErr_SetString(PyExc_TypeError, "expected bytes, NoneType found");
-    __PYX_ERR(0, 164, __pyx_L1_error)
+  __pyx_t_2 = (((__pyx_v_flags & PyBUF_C_CONTIGUOUS) == PyBUF_C_CONTIGUOUS) != 0);
+  if (__pyx_t_2) {
+  } else {
+    __pyx_t_1 = __pyx_t_2;
+    goto __pyx_L4_bool_binop_done;
   }
-  __pyx_t_4 = __Pyx_PyBytes_AsUString(__pyx_v_utf8_word); if (unlikely((!__pyx_t_4) && PyErr_Occurred())) __PYX_ERR(0, 164, __pyx_L1_error)
-  __pyx_v_bytez = __pyx_t_4;
 
-  /* "gensim/models/_utils_any2vec.pyx":165
- *     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
- *     cdef const unsigned char *bytez = utf8_word
- *     cdef size_t num_bytes = len(utf8_word)             # <<<<<<<<<<<<<<
- *     cdef size_t j, i, n
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
+ * 
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
+ *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  */
-  if (unlikely(__pyx_v_utf8_word == Py_None)) {
-    PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
-    __PYX_ERR(0, 165, __pyx_L1_error)
-  }
-  __pyx_t_5 = PyBytes_GET_SIZE(__pyx_v_utf8_word); if (unlikely(__pyx_t_5 == ((Py_ssize_t)-1))) __PYX_ERR(0, 165, __pyx_L1_error)
-  __pyx_v_num_bytes = __pyx_t_5;
+  __pyx_t_2 = ((!(PyArray_CHKFLAGS(__pyx_v_self, NPY_ARRAY_C_CONTIGUOUS) != 0)) != 0);
+  __pyx_t_1 = __pyx_t_2;
+  __pyx_L4_bool_binop_done:;
 
-  /* "gensim/models/_utils_any2vec.pyx":168
- *     cdef size_t j, i, n
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+ *             ndim = PyArray_NDIM(self)
  * 
- *     ngrams = []             # <<<<<<<<<<<<<<
- *     for i in range(num_bytes):
- *         if bytez[i] & _mb_mask == _mb_start:
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not C contiguous")
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 168, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_v_ngrams = ((PyObject*)__pyx_t_1);
-  __pyx_t_1 = 0;
+  if (unlikely(__pyx_t_1)) {
 
-  /* "gensim/models/_utils_any2vec.pyx":169
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
  * 
- *     ngrams = []
- *     for i in range(num_bytes):             # <<<<<<<<<<<<<<
- *         if bytez[i] & _mb_mask == _mb_start:
- *             continue
+ *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  */
-  __pyx_t_6 = __pyx_v_num_bytes;
-  __pyx_t_7 = __pyx_t_6;
-  for (__pyx_t_8 = 0; __pyx_t_8 < __pyx_t_7; __pyx_t_8+=1) {
-    __pyx_v_i = __pyx_t_8;
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 272, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_3);
+    __Pyx_Raise(__pyx_t_3, 0, 0, 0);
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __PYX_ERR(1, 272, __pyx_L1_error)
 
-    /* "gensim/models/_utils_any2vec.pyx":170
- *     ngrams = []
- *     for i in range(num_bytes):
- *         if bytez[i] & _mb_mask == _mb_start:             # <<<<<<<<<<<<<<
- *             continue
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
+ *             ndim = PyArray_NDIM(self)
  * 
+ *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not C contiguous")
  */
-    __pyx_t_9 = ((((__pyx_v_bytez[__pyx_v_i]) & __pyx_v__mb_mask) == __pyx_v__mb_start) != 0);
-    if (__pyx_t_9) {
+  }
 
-      /* "gensim/models/_utils_any2vec.pyx":171
- *     for i in range(num_bytes):
- *         if bytez[i] & _mb_mask == _mb_start:
- *             continue             # <<<<<<<<<<<<<<
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+ *                 raise ValueError(u"ndarray is not C contiguous")
  * 
- *         j, n = i, 1
+ *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not Fortran contiguous")
  */
-      goto __pyx_L3_continue;
+  __pyx_t_2 = (((__pyx_v_flags & PyBUF_F_CONTIGUOUS) == PyBUF_F_CONTIGUOUS) != 0);
+  if (__pyx_t_2) {
+  } else {
+    __pyx_t_1 = __pyx_t_2;
+    goto __pyx_L7_bool_binop_done;
+  }
 
-      /* "gensim/models/_utils_any2vec.pyx":170
- *     ngrams = []
- *     for i in range(num_bytes):
- *         if bytez[i] & _mb_mask == _mb_start:             # <<<<<<<<<<<<<<
- *             continue
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
+ * 
+ *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
+ *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  */
-    }
+  __pyx_t_2 = ((!(PyArray_CHKFLAGS(__pyx_v_self, NPY_ARRAY_F_CONTIGUOUS) != 0)) != 0);
+  __pyx_t_1 = __pyx_t_2;
+  __pyx_L7_bool_binop_done:;
 
-    /* "gensim/models/_utils_any2vec.pyx":173
- *             continue
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+ *                 raise ValueError(u"ndarray is not C contiguous")
  * 
- *         j, n = i, 1             # <<<<<<<<<<<<<<
- *         while j < num_bytes and n <= max_n:
- *             j += 1
+ *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not Fortran contiguous")
  */
-    __pyx_t_10 = __pyx_v_i;
-    __pyx_t_11 = 1;
-    __pyx_v_j = __pyx_t_10;
-    __pyx_v_n = __pyx_t_11;
+  if (unlikely(__pyx_t_1)) {
 
-    /* "gensim/models/_utils_any2vec.pyx":174
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
+ *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
  * 
- *         j, n = i, 1
- *         while j < num_bytes and n <= max_n:             # <<<<<<<<<<<<<<
- *             j += 1
- *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
+ *             info.buf = PyArray_DATA(self)
  */
-    while (1) {
-      __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
-      if (__pyx_t_12) {
-      } else {
-        __pyx_t_9 = __pyx_t_12;
-        goto __pyx_L8_bool_binop_done;
-      }
-      __pyx_t_12 = ((__pyx_v_n <= __pyx_v_max_n) != 0);
-      __pyx_t_9 = __pyx_t_12;
-      __pyx_L8_bool_binop_done:;
-      if (!__pyx_t_9) break;
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__4, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 276, __pyx_L1_error)
+    __Pyx_GOTREF(__pyx_t_3);
+    __Pyx_Raise(__pyx_t_3, 0, 0, 0);
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __PYX_ERR(1, 276, __pyx_L1_error)
 
-      /* "gensim/models/_utils_any2vec.pyx":175
- *         j, n = i, 1
- *         while j < num_bytes and n <= max_n:
- *             j += 1             # <<<<<<<<<<<<<<
- *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
- *                 j += 1
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
+ *                 raise ValueError(u"ndarray is not C contiguous")
+ * 
+ *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
+ *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
+ *                 raise ValueError(u"ndarray is not Fortran contiguous")
  */
-      __pyx_v_j = (__pyx_v_j + 1);
+  }
 
-      /* "gensim/models/_utils_any2vec.pyx":176
- *         while j < num_bytes and n <= max_n:
- *             j += 1
- *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:             # <<<<<<<<<<<<<<
- *                 j += 1
- *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
+ *                 raise ValueError(u"ndarray is not Fortran contiguous")
+ * 
+ *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
+ *             info.ndim = ndim
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  */
-      while (1) {
-        __pyx_t_12 = ((__pyx_v_j < __pyx_v_num_bytes) != 0);
-        if (__pyx_t_12) {
-        } else {
-          __pyx_t_9 = __pyx_t_12;
-          goto __pyx_L12_bool_binop_done;
-        }
-        __pyx_t_12 = ((((__pyx_v_bytez[__pyx_v_j]) & __pyx_v__mb_mask) == __pyx_v__mb_start) != 0);
-        __pyx_t_9 = __pyx_t_12;
-        __pyx_L12_bool_binop_done:;
-        if (!__pyx_t_9) break;
+  __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-        /* "gensim/models/_utils_any2vec.pyx":177
- *             j += 1
- *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
- *                 j += 1             # <<<<<<<<<<<<<<
- *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
- *                 ngram = bytes(bytez[i:j])
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
+ * 
+ *             info.buf = PyArray_DATA(self)
+ *             info.ndim = ndim             # <<<<<<<<<<<<<<
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
+ *                 # Allocate new buffer for strides and shape info.
  */
-        __pyx_v_j = (__pyx_v_j + 1);
-      }
+  __pyx_v_info->ndim = __pyx_v_ndim;
 
-      /* "gensim/models/_utils_any2vec.pyx":178
- *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
- *                 j += 1
- *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
- *                 ngram = bytes(bytez[i:j])
- *                 ngrams.append(ngram)
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
+ *             info.buf = PyArray_DATA(self)
+ *             info.ndim = ndim
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
+ *                 # Allocate new buffer for strides and shape info.
+ *                 # This is allocated as one block, strides first.
  */
-      __pyx_t_12 = ((__pyx_v_n >= __pyx_v_min_n) != 0);
-      if (__pyx_t_12) {
-      } else {
-        __pyx_t_9 = __pyx_t_12;
-        goto __pyx_L15_bool_binop_done;
-      }
-      __pyx_t_13 = ((__pyx_v_n == 1) != 0);
-      if (__pyx_t_13) {
-      } else {
-        __pyx_t_12 = __pyx_t_13;
-        goto __pyx_L17_bool_binop_done;
-      }
-      __pyx_t_13 = ((__pyx_v_i == 0) != 0);
-      if (!__pyx_t_13) {
-      } else {
-        __pyx_t_12 = __pyx_t_13;
-        goto __pyx_L17_bool_binop_done;
-      }
-      __pyx_t_13 = ((__pyx_v_j == __pyx_v_num_bytes) != 0);
-      __pyx_t_12 = __pyx_t_13;
-      __pyx_L17_bool_binop_done:;
-      __pyx_t_13 = ((!__pyx_t_12) != 0);
-      __pyx_t_9 = __pyx_t_13;
-      __pyx_L15_bool_binop_done:;
-      if (__pyx_t_9) {
+  __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
+  if (__pyx_t_1) {
 
-        /* "gensim/models/_utils_any2vec.pyx":179
- *                 j += 1
- *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
- *                 ngram = bytes(bytez[i:j])             # <<<<<<<<<<<<<<
- *                 ngrams.append(ngram)
- *             n += 1
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
+ *                 # Allocate new buffer for strides and shape info.
+ *                 # This is allocated as one block, strides first.
+ *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
+ *                 info.shape = info.strides + ndim
+ *                 for i in range(ndim):
  */
-        __pyx_t_1 = __Pyx_PyBytes_FromStringAndSize(((const char*)__pyx_v_bytez) + __pyx_v_i, __pyx_v_j - __pyx_v_i); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 179, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)(&PyBytes_Type)), __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 179, __pyx_L1_error)
-        __Pyx_GOTREF(__pyx_t_3);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __Pyx_XDECREF_SET(__pyx_v_ngram, ((PyObject*)__pyx_t_3));
-        __pyx_t_3 = 0;
+    __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-        /* "gensim/models/_utils_any2vec.pyx":180
- *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
- *                 ngram = bytes(bytez[i:j])
- *                 ngrams.append(ngram)             # <<<<<<<<<<<<<<
- *             n += 1
- *     return ngrams
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
+ *                 # This is allocated as one block, strides first.
+ *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
+ *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
+ *                 for i in range(ndim):
+ *                     info.strides[i] = PyArray_STRIDES(self)[i]
  */
-        __pyx_t_14 = __Pyx_PyList_Append(__pyx_v_ngrams, __pyx_v_ngram); if (unlikely(__pyx_t_14 == ((int)-1))) __PYX_ERR(0, 180, __pyx_L1_error)
+    __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-        /* "gensim/models/_utils_any2vec.pyx":178
- *             while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
- *                 j += 1
- *             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):             # <<<<<<<<<<<<<<
- *                 ngram = bytes(bytez[i:j])
- *                 ngrams.append(ngram)
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":285
+ *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
+ *                 info.shape = info.strides + ndim
+ *                 for i in range(ndim):             # <<<<<<<<<<<<<<
+ *                     info.strides[i] = PyArray_STRIDES(self)[i]
+ *                     info.shape[i] = PyArray_DIMS(self)[i]
  */
-      }
+    __pyx_t_4 = __pyx_v_ndim;
+    __pyx_t_5 = __pyx_t_4;
+    for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
+      __pyx_v_i = __pyx_t_6;
 
-      /* "gensim/models/_utils_any2vec.pyx":181
- *                 ngram = bytes(bytez[i:j])
- *                 ngrams.append(ngram)
- *             n += 1             # <<<<<<<<<<<<<<
- *     return ngrams
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
+ *                 info.shape = info.strides + ndim
+ *                 for i in range(ndim):
+ *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
+ *                     info.shape[i] = PyArray_DIMS(self)[i]
+ *             else:
  */
-      __pyx_v_n = (__pyx_v_n + 1);
-    }
-    __pyx_L3_continue:;
-  }
+      (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-  /* "gensim/models/_utils_any2vec.pyx":182
- *                 ngrams.append(ngram)
- *             n += 1
- *     return ngrams             # <<<<<<<<<<<<<<
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
+ *                 for i in range(ndim):
+ *                     info.strides[i] = PyArray_STRIDES(self)[i]
+ *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
+ *             else:
+ *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  */
-  __Pyx_XDECREF(__pyx_r);
-  __Pyx_INCREF(__pyx_v_ngrams);
-  __pyx_r = __pyx_v_ngrams;
-  goto __pyx_L0;
+      (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
+    }
 
-  /* "gensim/models/_utils_any2vec.pyx":160
- * 
- * 
- * cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):             # <<<<<<<<<<<<<<
- *     cdef unsigned char _mb_mask = 0xC0
- *     cdef unsigned char _mb_start = 0x80
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
+ *             info.buf = PyArray_DATA(self)
+ *             info.ndim = ndim
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
+ *                 # Allocate new buffer for strides and shape info.
+ *                 # This is allocated as one block, strides first.
  */
+    goto __pyx_L9;
+  }
 
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes_optimized", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = 0;
-  __pyx_L0:;
-  __Pyx_XDECREF(__pyx_v_utf8_word);
-  __Pyx_XDECREF(__pyx_v_ngrams);
-  __Pyx_XDECREF(__pyx_v_ngram);
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
+ *                     info.shape[i] = PyArray_DIMS(self)[i]
+ *             else:
+ *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
+ *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
+ *             info.suboffsets = NULL
+ */
+  /*else*/ {
+    __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-/* Python wrapper */
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_9compute_ngrams_bytes_optimized(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized[] = "compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n)";
-static PyObject *__pyx_pw_6gensim_6models_14_utils_any2vec_9compute_ngrams_bytes_optimized(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
-  PyObject *__pyx_v_word = 0;
-  unsigned int __pyx_v_min_n;
-  unsigned int __pyx_v_max_n;
-  PyObject *__pyx_r = 0;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("compute_ngrams_bytes_optimized (wrapper)", 0);
-  {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_word,&__pyx_n_s_min_n,&__pyx_n_s_max_n,0};
-    PyObject* values[3] = {0,0,0};
-    if (unlikely(__pyx_kwds)) {
-      Py_ssize_t kw_args;
-      const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
-      switch (pos_args) {
-        case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
-        CYTHON_FALLTHROUGH;
-        case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
-        CYTHON_FALLTHROUGH;
-        case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
-        CYTHON_FALLTHROUGH;
-        case  0: break;
-        default: goto __pyx_L5_argtuple_error;
-      }
-      kw_args = PyDict_Size(__pyx_kwds);
-      switch (pos_args) {
-        case  0:
-        if (likely((values[0] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_word)) != 0)) kw_args--;
-        else goto __pyx_L5_argtuple_error;
-        CYTHON_FALLTHROUGH;
-        case  1:
-        if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_min_n)) != 0)) kw_args--;
-        else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes_optimized", 1, 3, 3, 1); __PYX_ERR(0, 160, __pyx_L3_error)
-        }
-        CYTHON_FALLTHROUGH;
-        case  2:
-        if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_max_n)) != 0)) kw_args--;
-        else {
-          __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes_optimized", 1, 3, 3, 2); __PYX_ERR(0, 160, __pyx_L3_error)
-        }
-      }
-      if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "compute_ngrams_bytes_optimized") < 0)) __PYX_ERR(0, 160, __pyx_L3_error)
-      }
-    } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
-      goto __pyx_L5_argtuple_error;
-    } else {
-      values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
-      values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
-      values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
-    }
-    __pyx_v_word = values[0];
-    __pyx_v_min_n = __Pyx_PyInt_As_unsigned_int(values[1]); if (unlikely((__pyx_v_min_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 160, __pyx_L3_error)
-    __pyx_v_max_n = __Pyx_PyInt_As_unsigned_int(values[2]); if (unlikely((__pyx_v_max_n == (unsigned int)-1) && PyErr_Occurred())) __PYX_ERR(0, 160, __pyx_L3_error)
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":290
+ *             else:
+ *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
+ *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
+ *             info.suboffsets = NULL
+ *             info.itemsize = PyArray_ITEMSIZE(self)
+ */
+    __pyx_v_info->shape = ((Py_ssize_t *)PyArray_DIMS(__pyx_v_self));
   }
-  goto __pyx_L4_argument_unpacking_done;
-  __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("compute_ngrams_bytes_optimized", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 160, __pyx_L3_error)
-  __pyx_L3_error:;
-  __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes_optimized", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __Pyx_RefNannyFinishContext();
-  return NULL;
-  __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized(__pyx_self, __pyx_v_word, __pyx_v_min_n, __pyx_v_max_n);
-
-  /* function exit code */
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
+  __pyx_L9:;
 
-static PyObject *__pyx_pf_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_word, unsigned int __pyx_v_min_n, unsigned int __pyx_v_max_n) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  __Pyx_RefNannySetupContext("compute_ngrams_bytes_optimized", 0);
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_6gensim_6models_14_utils_any2vec_compute_ngrams_bytes_optimized(__pyx_v_word, __pyx_v_min_n, __pyx_v_max_n, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 160, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_r = __pyx_t_1;
-  __pyx_t_1 = 0;
-  goto __pyx_L0;
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":291
+ *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
+ *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
+ *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
+ *             info.itemsize = PyArray_ITEMSIZE(self)
+ *             info.readonly = not PyArray_ISWRITEABLE(self)
+ */
+  __pyx_v_info->suboffsets = NULL;
 
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("gensim.models._utils_any2vec.compute_ngrams_bytes_optimized", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = NULL;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
+ *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
+ *             info.suboffsets = NULL
+ *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
+ *             info.readonly = not PyArray_ISWRITEABLE(self)
+ * 
+ */
+  __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
- *         # experimental exception made for __getbuffer__ and __releasebuffer__
- *         # -- the details of this may change.
- *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
- *             # This implementation of getbuffer is geared towards Cython
- *             # requirements, and does not yet fulfill the PEP.
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":293
+ *             info.suboffsets = NULL
+ *             info.itemsize = PyArray_ITEMSIZE(self)
+ *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
+ * 
+ *             cdef int t
  */
+  __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-/* Python wrapper */
-static CYTHON_UNUSED int __pyx_pw_5numpy_7ndarray_1__getbuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /*proto*/
-static CYTHON_UNUSED int __pyx_pw_5numpy_7ndarray_1__getbuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags) {
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__getbuffer__ (wrapper)", 0);
-  __pyx_r = __pyx_pf_5numpy_7ndarray___getbuffer__(((PyArrayObject *)__pyx_v_self), ((Py_buffer *)__pyx_v_info), ((int)__pyx_v_flags));
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
+ * 
+ *             cdef int t
+ *             cdef char* f = NULL             # <<<<<<<<<<<<<<
+ *             cdef dtype descr = <dtype>PyArray_DESCR(self)
+ *             cdef int offset
+ */
+  __pyx_v_f = NULL;
 
-  /* function exit code */
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
+ *             cdef int t
+ *             cdef char* f = NULL
+ *             cdef dtype descr = <dtype>PyArray_DESCR(self)             # <<<<<<<<<<<<<<
+ *             cdef int offset
+ * 
+ */
+  __pyx_t_7 = PyArray_DESCR(__pyx_v_self);
+  __pyx_t_3 = ((PyObject *)__pyx_t_7);
+  __Pyx_INCREF(__pyx_t_3);
+  __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
+  __pyx_t_3 = 0;
 
-static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags) {
-  int __pyx_v_i;
-  int __pyx_v_ndim;
-  int __pyx_v_endian_detector;
-  int __pyx_v_little_endian;
-  int __pyx_v_t;
-  char *__pyx_v_f;
-  PyArray_Descr *__pyx_v_descr = 0;
-  int __pyx_v_offset;
-  int __pyx_r;
-  __Pyx_RefNannyDeclarations
-  int __pyx_t_1;
-  int __pyx_t_2;
-  PyObject *__pyx_t_3 = NULL;
-  int __pyx_t_4;
-  int __pyx_t_5;
-  int __pyx_t_6;
-  PyArray_Descr *__pyx_t_7;
-  PyObject *__pyx_t_8 = NULL;
-  char *__pyx_t_9;
-  if (__pyx_v_info == NULL) {
-    PyErr_SetString(PyExc_BufferError, "PyObject_GetBuffer: view==NULL argument is obsolete");
-    return -1;
-  }
-  __Pyx_RefNannySetupContext("__getbuffer__", 0);
-  __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
-  __Pyx_GIVEREF(__pyx_v_info->obj);
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":300
+ *             cdef int offset
  * 
- *             cdef int i, ndim
- *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
- *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
+ *             info.obj = self             # <<<<<<<<<<<<<<
  * 
+ *             if not PyDataType_HASFIELDS(descr):
  */
-  __pyx_v_endian_detector = 1;
+  __Pyx_INCREF(((PyObject *)__pyx_v_self));
+  __Pyx_GIVEREF(((PyObject *)__pyx_v_self));
+  __Pyx_GOTREF(__pyx_v_info->obj);
+  __Pyx_DECREF(__pyx_v_info->obj);
+  __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
- *             cdef int i, ndim
- *             cdef int endian_detector = 1
- *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
+ *             info.obj = self
  * 
- *             ndim = PyArray_NDIM(self)
+ *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
+ *                 t = descr.type_num
+ *                 if ((descr.byteorder == c'>' and little_endian) or
  */
-  __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
+  __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
+  if (__pyx_t_1) {
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
- *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
- * 
- *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":303
  * 
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
+ *             if not PyDataType_HASFIELDS(descr):
+ *                 t = descr.type_num             # <<<<<<<<<<<<<<
+ *                 if ((descr.byteorder == c'>' and little_endian) or
+ *                     (descr.byteorder == c'<' and not little_endian)):
  */
-  __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
+    __pyx_t_4 = __pyx_v_descr->type_num;
+    __pyx_v_t = __pyx_t_4;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
- *             ndim = PyArray_NDIM(self)
- * 
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not C contiguous")
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+ *             if not PyDataType_HASFIELDS(descr):
+ *                 t = descr.type_num
+ *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
+ *                     (descr.byteorder == c'<' and not little_endian)):
+ *                     raise ValueError(u"Non-native byte order not supported")
  */
-  __pyx_t_2 = (((__pyx_v_flags & PyBUF_C_CONTIGUOUS) == PyBUF_C_CONTIGUOUS) != 0);
-  if (__pyx_t_2) {
-  } else {
-    __pyx_t_1 = __pyx_t_2;
-    goto __pyx_L4_bool_binop_done;
-  }
+    __pyx_t_2 = ((__pyx_v_descr->byteorder == '>') != 0);
+    if (!__pyx_t_2) {
+      goto __pyx_L15_next_or;
+    } else {
+    }
+    __pyx_t_2 = (__pyx_v_little_endian != 0);
+    if (!__pyx_t_2) {
+    } else {
+      __pyx_t_1 = __pyx_t_2;
+      goto __pyx_L14_bool_binop_done;
+    }
+    __pyx_L15_next_or:;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
- * 
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
- *                 raise ValueError(u"ndarray is not C contiguous")
- * 
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":305
+ *                 t = descr.type_num
+ *                 if ((descr.byteorder == c'>' and little_endian) or
+ *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
+ *                     raise ValueError(u"Non-native byte order not supported")
+ *                 if   t == NPY_BYTE:        f = "b"
  */
-  __pyx_t_2 = ((!(PyArray_CHKFLAGS(__pyx_v_self, NPY_ARRAY_C_CONTIGUOUS) != 0)) != 0);
-  __pyx_t_1 = __pyx_t_2;
-  __pyx_L4_bool_binop_done:;
+    __pyx_t_2 = ((__pyx_v_descr->byteorder == '<') != 0);
+    if (__pyx_t_2) {
+    } else {
+      __pyx_t_1 = __pyx_t_2;
+      goto __pyx_L14_bool_binop_done;
+    }
+    __pyx_t_2 = ((!(__pyx_v_little_endian != 0)) != 0);
+    __pyx_t_1 = __pyx_t_2;
+    __pyx_L14_bool_binop_done:;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
- *             ndim = PyArray_NDIM(self)
- * 
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not C contiguous")
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+ *             if not PyDataType_HASFIELDS(descr):
+ *                 t = descr.type_num
+ *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
+ *                     (descr.byteorder == c'<' and not little_endian)):
+ *                     raise ValueError(u"Non-native byte order not supported")
  */
-  if (unlikely(__pyx_t_1)) {
+    if (unlikely(__pyx_t_1)) {
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
- * 
- *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
+ *                 if ((descr.byteorder == c'>' and little_endian) or
+ *                     (descr.byteorder == c'<' and not little_endian)):
+ *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
+ *                 if   t == NPY_BYTE:        f = "b"
+ *                 elif t == NPY_UBYTE:       f = "B"
  */
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 272, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_3);
-    __Pyx_Raise(__pyx_t_3, 0, 0, 0);
-    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __PYX_ERR(1, 272, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__5, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 306, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_3);
+      __Pyx_Raise(__pyx_t_3, 0, 0, 0);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __PYX_ERR(1, 306, __pyx_L1_error)
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
- *             ndim = PyArray_NDIM(self)
- * 
- *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_C_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not C contiguous")
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
+ *             if not PyDataType_HASFIELDS(descr):
+ *                 t = descr.type_num
+ *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
+ *                     (descr.byteorder == c'<' and not little_endian)):
+ *                     raise ValueError(u"Non-native byte order not supported")
  */
-  }
+    }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
- *                 raise ValueError(u"ndarray is not C contiguous")
- * 
- *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not Fortran contiguous")
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":307
+ *                     (descr.byteorder == c'<' and not little_endian)):
+ *                     raise ValueError(u"Non-native byte order not supported")
+ *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_UBYTE:       f = "B"
+ *                 elif t == NPY_SHORT:       f = "h"
  */
-  __pyx_t_2 = (((__pyx_v_flags & PyBUF_F_CONTIGUOUS) == PyBUF_F_CONTIGUOUS) != 0);
-  if (__pyx_t_2) {
-  } else {
-    __pyx_t_1 = __pyx_t_2;
-    goto __pyx_L7_bool_binop_done;
-  }
+    switch (__pyx_v_t) {
+      case NPY_BYTE:
+      __pyx_v_f = ((char *)"b");
+      break;
+      case NPY_UBYTE:
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
- * 
- *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
- *                 raise ValueError(u"ndarray is not Fortran contiguous")
- * 
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":308
+ *                     raise ValueError(u"Non-native byte order not supported")
+ *                 if   t == NPY_BYTE:        f = "b"
+ *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_SHORT:       f = "h"
+ *                 elif t == NPY_USHORT:      f = "H"
  */
-  __pyx_t_2 = ((!(PyArray_CHKFLAGS(__pyx_v_self, NPY_ARRAY_F_CONTIGUOUS) != 0)) != 0);
-  __pyx_t_1 = __pyx_t_2;
-  __pyx_L7_bool_binop_done:;
+      __pyx_v_f = ((char *)"B");
+      break;
+      case NPY_SHORT:
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
- *                 raise ValueError(u"ndarray is not C contiguous")
- * 
- *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not Fortran contiguous")
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":309
+ *                 if   t == NPY_BYTE:        f = "b"
+ *                 elif t == NPY_UBYTE:       f = "B"
+ *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_USHORT:      f = "H"
+ *                 elif t == NPY_INT:         f = "i"
  */
-  if (unlikely(__pyx_t_1)) {
+      __pyx_v_f = ((char *)"h");
+      break;
+      case NPY_USHORT:
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
- *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
- * 
- *             info.buf = PyArray_DATA(self)
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":310
+ *                 elif t == NPY_UBYTE:       f = "B"
+ *                 elif t == NPY_SHORT:       f = "h"
+ *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_INT:         f = "i"
+ *                 elif t == NPY_UINT:        f = "I"
  */
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__4, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 276, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_3);
-    __Pyx_Raise(__pyx_t_3, 0, 0, 0);
-    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __PYX_ERR(1, 276, __pyx_L1_error)
+      __pyx_v_f = ((char *)"H");
+      break;
+      case NPY_INT:
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
- *                 raise ValueError(u"ndarray is not C contiguous")
- * 
- *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
- *                 and not PyArray_CHKFLAGS(self, NPY_ARRAY_F_CONTIGUOUS)):
- *                 raise ValueError(u"ndarray is not Fortran contiguous")
- */
-  }
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":311
+ *                 elif t == NPY_SHORT:       f = "h"
+ *                 elif t == NPY_USHORT:      f = "H"
+ *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_UINT:        f = "I"
+ *                 elif t == NPY_LONG:        f = "l"
+ */
+      __pyx_v_f = ((char *)"i");
+      break;
+      case NPY_UINT:
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
- *                 raise ValueError(u"ndarray is not Fortran contiguous")
- * 
- *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
- *             info.ndim = ndim
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":312
+ *                 elif t == NPY_USHORT:      f = "H"
+ *                 elif t == NPY_INT:         f = "i"
+ *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_LONG:        f = "l"
+ *                 elif t == NPY_ULONG:       f = "L"
  */
-  __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
+      __pyx_v_f = ((char *)"I");
+      break;
+      case NPY_LONG:
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
- * 
- *             info.buf = PyArray_DATA(self)
- *             info.ndim = ndim             # <<<<<<<<<<<<<<
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
- *                 # Allocate new buffer for strides and shape info.
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":313
+ *                 elif t == NPY_INT:         f = "i"
+ *                 elif t == NPY_UINT:        f = "I"
+ *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_ULONG:       f = "L"
+ *                 elif t == NPY_LONGLONG:    f = "q"
  */
-  __pyx_v_info->ndim = __pyx_v_ndim;
+      __pyx_v_f = ((char *)"l");
+      break;
+      case NPY_ULONG:
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
- *             info.buf = PyArray_DATA(self)
- *             info.ndim = ndim
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
- *                 # Allocate new buffer for strides and shape info.
- *                 # This is allocated as one block, strides first.
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":314
+ *                 elif t == NPY_UINT:        f = "I"
+ *                 elif t == NPY_LONG:        f = "l"
+ *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_LONGLONG:    f = "q"
+ *                 elif t == NPY_ULONGLONG:   f = "Q"
  */
-  __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
-  if (__pyx_t_1) {
+      __pyx_v_f = ((char *)"L");
+      break;
+      case NPY_LONGLONG:
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
- *                 # Allocate new buffer for strides and shape info.
- *                 # This is allocated as one block, strides first.
- *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
- *                 info.shape = info.strides + ndim
- *                 for i in range(ndim):
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":315
+ *                 elif t == NPY_LONG:        f = "l"
+ *                 elif t == NPY_ULONG:       f = "L"
+ *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_ULONGLONG:   f = "Q"
+ *                 elif t == NPY_FLOAT:       f = "f"
  */
-    __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
+      __pyx_v_f = ((char *)"q");
+      break;
+      case NPY_ULONGLONG:
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
- *                 # This is allocated as one block, strides first.
- *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
- *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
- *                 for i in range(ndim):
- *                     info.strides[i] = PyArray_STRIDES(self)[i]
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":316
+ *                 elif t == NPY_ULONG:       f = "L"
+ *                 elif t == NPY_LONGLONG:    f = "q"
+ *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_FLOAT:       f = "f"
+ *                 elif t == NPY_DOUBLE:      f = "d"
  */
-    __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
+      __pyx_v_f = ((char *)"Q");
+      break;
+      case NPY_FLOAT:
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":285
- *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
- *                 info.shape = info.strides + ndim
- *                 for i in range(ndim):             # <<<<<<<<<<<<<<
- *                     info.strides[i] = PyArray_STRIDES(self)[i]
- *                     info.shape[i] = PyArray_DIMS(self)[i]
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":317
+ *                 elif t == NPY_LONGLONG:    f = "q"
+ *                 elif t == NPY_ULONGLONG:   f = "Q"
+ *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_DOUBLE:      f = "d"
+ *                 elif t == NPY_LONGDOUBLE:  f = "g"
  */
-    __pyx_t_4 = __pyx_v_ndim;
-    __pyx_t_5 = __pyx_t_4;
-    for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
-      __pyx_v_i = __pyx_t_6;
+      __pyx_v_f = ((char *)"f");
+      break;
+      case NPY_DOUBLE:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
- *                 info.shape = info.strides + ndim
- *                 for i in range(ndim):
- *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
- *                     info.shape[i] = PyArray_DIMS(self)[i]
- *             else:
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":318
+ *                 elif t == NPY_ULONGLONG:   f = "Q"
+ *                 elif t == NPY_FLOAT:       f = "f"
+ *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_LONGDOUBLE:  f = "g"
+ *                 elif t == NPY_CFLOAT:      f = "Zf"
  */
-      (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
+      __pyx_v_f = ((char *)"d");
+      break;
+      case NPY_LONGDOUBLE:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
- *                 for i in range(ndim):
- *                     info.strides[i] = PyArray_STRIDES(self)[i]
- *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
- *             else:
- *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":319
+ *                 elif t == NPY_FLOAT:       f = "f"
+ *                 elif t == NPY_DOUBLE:      f = "d"
+ *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_CFLOAT:      f = "Zf"
+ *                 elif t == NPY_CDOUBLE:     f = "Zd"
  */
-      (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
-    }
+      __pyx_v_f = ((char *)"g");
+      break;
+      case NPY_CFLOAT:
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
- *             info.buf = PyArray_DATA(self)
- *             info.ndim = ndim
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
- *                 # Allocate new buffer for strides and shape info.
- *                 # This is allocated as one block, strides first.
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":320
+ *                 elif t == NPY_DOUBLE:      f = "d"
+ *                 elif t == NPY_LONGDOUBLE:  f = "g"
+ *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_CDOUBLE:     f = "Zd"
+ *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  */
-    goto __pyx_L9;
-  }
+      __pyx_v_f = ((char *)"Zf");
+      break;
+      case NPY_CDOUBLE:
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
- *                     info.shape[i] = PyArray_DIMS(self)[i]
- *             else:
- *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
- *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
- *             info.suboffsets = NULL
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":321
+ *                 elif t == NPY_LONGDOUBLE:  f = "g"
+ *                 elif t == NPY_CFLOAT:      f = "Zf"
+ *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
+ *                 elif t == NPY_OBJECT:      f = "O"
  */
-  /*else*/ {
-    __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
+      __pyx_v_f = ((char *)"Zd");
+      break;
+      case NPY_CLONGDOUBLE:
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":290
- *             else:
- *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
- *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
- *             info.suboffsets = NULL
- *             info.itemsize = PyArray_ITEMSIZE(self)
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":322
+ *                 elif t == NPY_CFLOAT:      f = "Zf"
+ *                 elif t == NPY_CDOUBLE:     f = "Zd"
+ *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
+ *                 elif t == NPY_OBJECT:      f = "O"
+ *                 else:
  */
-    __pyx_v_info->shape = ((Py_ssize_t *)PyArray_DIMS(__pyx_v_self));
-  }
-  __pyx_L9:;
+      __pyx_v_f = ((char *)"Zg");
+      break;
+      case NPY_OBJECT:
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":291
- *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
- *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
- *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
- *             info.itemsize = PyArray_ITEMSIZE(self)
- *             info.readonly = not PyArray_ISWRITEABLE(self)
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":323
+ *                 elif t == NPY_CDOUBLE:     f = "Zd"
+ *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
+ *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
+ *                 else:
+ *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  */
-  __pyx_v_info->suboffsets = NULL;
+      __pyx_v_f = ((char *)"O");
+      break;
+      default:
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
- *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
- *             info.suboffsets = NULL
- *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
- *             info.readonly = not PyArray_ISWRITEABLE(self)
- * 
+      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":325
+ *                 elif t == NPY_OBJECT:      f = "O"
+ *                 else:
+ *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
+ *                 info.format = f
+ *                 return
  */
-  __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
+      __pyx_t_3 = __Pyx_PyInt_From_int(__pyx_v_t); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 325, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_3);
+      __pyx_t_8 = PyUnicode_Format(__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_t_3); if (unlikely(!__pyx_t_8)) __PYX_ERR(1, 325, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_8);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_8); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 325, __pyx_L1_error)
+      __Pyx_GOTREF(__pyx_t_3);
+      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
+      __Pyx_Raise(__pyx_t_3, 0, 0, 0);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __PYX_ERR(1, 325, __pyx_L1_error)
+      break;
+    }
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":293
- *             info.suboffsets = NULL
- *             info.itemsize = PyArray_ITEMSIZE(self)
- *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
- * 
- *             cdef int t
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":326
+ *                 else:
+ *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
+ *                 info.format = f             # <<<<<<<<<<<<<<
+ *                 return
+ *             else:
  */
-  __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
+    __pyx_v_info->format = __pyx_v_f;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
- * 
- *             cdef int t
- *             cdef char* f = NULL             # <<<<<<<<<<<<<<
- *             cdef dtype descr = <dtype>PyArray_DESCR(self)
- *             cdef int offset
- */
-  __pyx_v_f = NULL;
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
- *             cdef int t
- *             cdef char* f = NULL
- *             cdef dtype descr = <dtype>PyArray_DESCR(self)             # <<<<<<<<<<<<<<
- *             cdef int offset
- * 
- */
-  __pyx_t_7 = PyArray_DESCR(__pyx_v_self);
-  __pyx_t_3 = ((PyObject *)__pyx_t_7);
-  __Pyx_INCREF(__pyx_t_3);
-  __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
-  __pyx_t_3 = 0;
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":300
- *             cdef int offset
- * 
- *             info.obj = self             # <<<<<<<<<<<<<<
- * 
- *             if not PyDataType_HASFIELDS(descr):
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":327
+ *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
+ *                 info.format = f
+ *                 return             # <<<<<<<<<<<<<<
+ *             else:
+ *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  */
-  __Pyx_INCREF(((PyObject *)__pyx_v_self));
-  __Pyx_GIVEREF(((PyObject *)__pyx_v_self));
-  __Pyx_GOTREF(__pyx_v_info->obj);
-  __Pyx_DECREF(__pyx_v_info->obj);
-  __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
+    __pyx_r = 0;
+    goto __pyx_L0;
 
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  */
-  __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
-  if (__pyx_t_1) {
+  }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":303
- * 
- *             if not PyDataType_HASFIELDS(descr):
- *                 t = descr.type_num             # <<<<<<<<<<<<<<
- *                 if ((descr.byteorder == c'>' and little_endian) or
- *                     (descr.byteorder == c'<' and not little_endian)):
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":329
+ *                 return
+ *             else:
+ *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
+ *                 info.format[0] = c'^' # Native data types, manual alignment
+ *                 offset = 0
  */
-    __pyx_t_4 = __pyx_v_descr->type_num;
-    __pyx_v_t = __pyx_t_4;
+  /*else*/ {
+    __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
- *             if not PyDataType_HASFIELDS(descr):
- *                 t = descr.type_num
- *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
- *                     (descr.byteorder == c'<' and not little_endian)):
- *                     raise ValueError(u"Non-native byte order not supported")
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":330
+ *             else:
+ *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
+ *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
+ *                 offset = 0
+ *                 f = _util_dtypestring(descr, info.format + 1,
  */
-    __pyx_t_2 = ((__pyx_v_descr->byteorder == '>') != 0);
-    if (!__pyx_t_2) {
-      goto __pyx_L15_next_or;
-    } else {
-    }
-    __pyx_t_2 = (__pyx_v_little_endian != 0);
-    if (!__pyx_t_2) {
-    } else {
-      __pyx_t_1 = __pyx_t_2;
-      goto __pyx_L14_bool_binop_done;
-    }
-    __pyx_L15_next_or:;
+    (__pyx_v_info->format[0]) = '^';
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":305
- *                 t = descr.type_num
- *                 if ((descr.byteorder == c'>' and little_endian) or
- *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
- *                     raise ValueError(u"Non-native byte order not supported")
- *                 if   t == NPY_BYTE:        f = "b"
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":331
+ *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
+ *                 info.format[0] = c'^' # Native data types, manual alignment
+ *                 offset = 0             # <<<<<<<<<<<<<<
+ *                 f = _util_dtypestring(descr, info.format + 1,
+ *                                       info.format + _buffer_format_string_len,
  */
-    __pyx_t_2 = ((__pyx_v_descr->byteorder == '<') != 0);
-    if (__pyx_t_2) {
-    } else {
-      __pyx_t_1 = __pyx_t_2;
-      goto __pyx_L14_bool_binop_done;
-    }
-    __pyx_t_2 = ((!(__pyx_v_little_endian != 0)) != 0);
-    __pyx_t_1 = __pyx_t_2;
-    __pyx_L14_bool_binop_done:;
+    __pyx_v_offset = 0;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
- *             if not PyDataType_HASFIELDS(descr):
- *                 t = descr.type_num
- *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
- *                     (descr.byteorder == c'<' and not little_endian)):
- *                     raise ValueError(u"Non-native byte order not supported")
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":332
+ *                 info.format[0] = c'^' # Native data types, manual alignment
+ *                 offset = 0
+ *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
+ *                                       info.format + _buffer_format_string_len,
+ *                                       &offset)
  */
-    if (unlikely(__pyx_t_1)) {
+    __pyx_t_9 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_9 == ((char *)NULL))) __PYX_ERR(1, 332, __pyx_L1_error)
+    __pyx_v_f = __pyx_t_9;
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":306
- *                 if ((descr.byteorder == c'>' and little_endian) or
- *                     (descr.byteorder == c'<' and not little_endian)):
- *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
- *                 if   t == NPY_BYTE:        f = "b"
- *                 elif t == NPY_UBYTE:       f = "B"
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":335
+ *                                       info.format + _buffer_format_string_len,
+ *                                       &offset)
+ *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
+ * 
+ *         def __releasebuffer__(ndarray self, Py_buffer* info):
  */
-      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__5, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 306, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_3);
-      __Pyx_Raise(__pyx_t_3, 0, 0, 0);
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __PYX_ERR(1, 306, __pyx_L1_error)
+    (__pyx_v_f[0]) = '\x00';
+  }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":304
- *             if not PyDataType_HASFIELDS(descr):
- *                 t = descr.type_num
- *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
- *                     (descr.byteorder == c'<' and not little_endian)):
- *                     raise ValueError(u"Non-native byte order not supported")
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
+ *         # experimental exception made for __getbuffer__ and __releasebuffer__
+ *         # -- the details of this may change.
+ *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
+ *             # This implementation of getbuffer is geared towards Cython
+ *             # requirements, and does not yet fulfill the PEP.
  */
-    }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":307
- *                     (descr.byteorder == c'<' and not little_endian)):
- *                     raise ValueError(u"Non-native byte order not supported")
- *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_UBYTE:       f = "B"
- *                 elif t == NPY_SHORT:       f = "h"
- */
-    switch (__pyx_v_t) {
-      case NPY_BYTE:
-      __pyx_v_f = ((char *)"b");
-      break;
-      case NPY_UBYTE:
+  /* function exit code */
+  __pyx_r = 0;
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_8);
+  __Pyx_AddTraceback("numpy.ndarray.__getbuffer__", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = -1;
+  if (__pyx_v_info->obj != NULL) {
+    __Pyx_GOTREF(__pyx_v_info->obj);
+    __Pyx_DECREF(__pyx_v_info->obj); __pyx_v_info->obj = 0;
+  }
+  goto __pyx_L2;
+  __pyx_L0:;
+  if (__pyx_v_info->obj == Py_None) {
+    __Pyx_GOTREF(__pyx_v_info->obj);
+    __Pyx_DECREF(__pyx_v_info->obj); __pyx_v_info->obj = 0;
+  }
+  __pyx_L2:;
+  __Pyx_XDECREF((PyObject *)__pyx_v_descr);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":308
- *                     raise ValueError(u"Non-native byte order not supported")
- *                 if   t == NPY_BYTE:        f = "b"
- *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_SHORT:       f = "h"
- *                 elif t == NPY_USHORT:      f = "H"
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
+ *                 f[0] = c'\0' # Terminate format string
+ * 
+ *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
+ *             if PyArray_HASFIELDS(self):
+ *                 PyObject_Free(info.format)
  */
-      __pyx_v_f = ((char *)"B");
-      break;
-      case NPY_SHORT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":309
- *                 if   t == NPY_BYTE:        f = "b"
- *                 elif t == NPY_UBYTE:       f = "B"
- *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_USHORT:      f = "H"
- *                 elif t == NPY_INT:         f = "i"
- */
-      __pyx_v_f = ((char *)"h");
-      break;
-      case NPY_USHORT:
+/* Python wrapper */
+static CYTHON_UNUSED void __pyx_pw_5numpy_7ndarray_3__releasebuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info); /*proto*/
+static CYTHON_UNUSED void __pyx_pw_5numpy_7ndarray_3__releasebuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info) {
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("__releasebuffer__ (wrapper)", 0);
+  __pyx_pf_5numpy_7ndarray_2__releasebuffer__(((PyArrayObject *)__pyx_v_self), ((Py_buffer *)__pyx_v_info));
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":310
- *                 elif t == NPY_UBYTE:       f = "B"
- *                 elif t == NPY_SHORT:       f = "h"
- *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_INT:         f = "i"
- *                 elif t == NPY_UINT:        f = "I"
- */
-      __pyx_v_f = ((char *)"H");
-      break;
-      case NPY_INT:
+  /* function exit code */
+  __Pyx_RefNannyFinishContext();
+}
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":311
- *                 elif t == NPY_SHORT:       f = "h"
- *                 elif t == NPY_USHORT:      f = "H"
- *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_UINT:        f = "I"
- *                 elif t == NPY_LONG:        f = "l"
+static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info) {
+  __Pyx_RefNannyDeclarations
+  int __pyx_t_1;
+  __Pyx_RefNannySetupContext("__releasebuffer__", 0);
+
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
+ * 
+ *         def __releasebuffer__(ndarray self, Py_buffer* info):
+ *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
+ *                 PyObject_Free(info.format)
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  */
-      __pyx_v_f = ((char *)"i");
-      break;
-      case NPY_UINT:
+  __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
+  if (__pyx_t_1) {
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":312
- *                 elif t == NPY_USHORT:      f = "H"
- *                 elif t == NPY_INT:         f = "i"
- *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_LONG:        f = "l"
- *                 elif t == NPY_ULONG:       f = "L"
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":339
+ *         def __releasebuffer__(ndarray self, Py_buffer* info):
+ *             if PyArray_HASFIELDS(self):
+ *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
+ *                 PyObject_Free(info.strides)
  */
-      __pyx_v_f = ((char *)"I");
-      break;
-      case NPY_LONG:
+    PyObject_Free(__pyx_v_info->format);
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":313
- *                 elif t == NPY_INT:         f = "i"
- *                 elif t == NPY_UINT:        f = "I"
- *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_ULONG:       f = "L"
- *                 elif t == NPY_LONGLONG:    f = "q"
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
+ * 
+ *         def __releasebuffer__(ndarray self, Py_buffer* info):
+ *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
+ *                 PyObject_Free(info.format)
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  */
-      __pyx_v_f = ((char *)"l");
-      break;
-      case NPY_ULONG:
+  }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":314
- *                 elif t == NPY_UINT:        f = "I"
- *                 elif t == NPY_LONG:        f = "l"
- *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_LONGLONG:    f = "q"
- *                 elif t == NPY_ULONGLONG:   f = "Q"
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
+ *             if PyArray_HASFIELDS(self):
+ *                 PyObject_Free(info.format)
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
+ *                 PyObject_Free(info.strides)
+ *                 # info.shape was stored after info.strides in the same block
  */
-      __pyx_v_f = ((char *)"L");
-      break;
-      case NPY_LONGLONG:
+  __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
+  if (__pyx_t_1) {
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":315
- *                 elif t == NPY_LONG:        f = "l"
- *                 elif t == NPY_ULONG:       f = "L"
- *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_ULONGLONG:   f = "Q"
- *                 elif t == NPY_FLOAT:       f = "f"
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":341
+ *                 PyObject_Free(info.format)
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
+ *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
+ *                 # info.shape was stored after info.strides in the same block
+ * 
  */
-      __pyx_v_f = ((char *)"q");
-      break;
-      case NPY_ULONGLONG:
+    PyObject_Free(__pyx_v_info->strides);
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":316
- *                 elif t == NPY_ULONG:       f = "L"
- *                 elif t == NPY_LONGLONG:    f = "q"
- *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_FLOAT:       f = "f"
- *                 elif t == NPY_DOUBLE:      f = "d"
+    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
+ *             if PyArray_HASFIELDS(self):
+ *                 PyObject_Free(info.format)
+ *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
+ *                 PyObject_Free(info.strides)
+ *                 # info.shape was stored after info.strides in the same block
  */
-      __pyx_v_f = ((char *)"Q");
-      break;
-      case NPY_FLOAT:
+  }
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":317
- *                 elif t == NPY_LONGLONG:    f = "q"
- *                 elif t == NPY_ULONGLONG:   f = "Q"
- *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_DOUBLE:      f = "d"
- *                 elif t == NPY_LONGDOUBLE:  f = "g"
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
+ *                 f[0] = c'\0' # Terminate format string
+ * 
+ *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
+ *             if PyArray_HASFIELDS(self):
+ *                 PyObject_Free(info.format)
  */
-      __pyx_v_f = ((char *)"f");
-      break;
-      case NPY_DOUBLE:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":318
- *                 elif t == NPY_ULONGLONG:   f = "Q"
- *                 elif t == NPY_FLOAT:       f = "f"
- *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_LONGDOUBLE:  f = "g"
- *                 elif t == NPY_CFLOAT:      f = "Zf"
- */
-      __pyx_v_f = ((char *)"d");
-      break;
-      case NPY_LONGDOUBLE:
+  /* function exit code */
+  __Pyx_RefNannyFinishContext();
+}
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":319
- *                 elif t == NPY_FLOAT:       f = "f"
- *                 elif t == NPY_DOUBLE:      f = "d"
- *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_CFLOAT:      f = "Zf"
- *                 elif t == NPY_CDOUBLE:     f = "Zd"
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
+ * ctypedef npy_cdouble     complex_t
+ * 
+ * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
+ *     return PyArray_MultiIterNew(1, <void*>a)
+ * 
  */
-      __pyx_v_f = ((char *)"g");
-      break;
-      case NPY_CFLOAT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":320
- *                 elif t == NPY_DOUBLE:      f = "d"
- *                 elif t == NPY_LONGDOUBLE:  f = "g"
- *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_CDOUBLE:     f = "Zd"
- *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
- */
-      __pyx_v_f = ((char *)"Zf");
-      break;
-      case NPY_CDOUBLE:
+static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__pyx_v_a) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  __Pyx_RefNannySetupContext("PyArray_MultiIterNew1", 0);
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":321
- *                 elif t == NPY_LONGDOUBLE:  f = "g"
- *                 elif t == NPY_CFLOAT:      f = "Zf"
- *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
- *                 elif t == NPY_OBJECT:      f = "O"
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":822
+ * 
+ * cdef inline object PyArray_MultiIterNew1(a):
+ *     return PyArray_MultiIterNew(1, <void*>a)             # <<<<<<<<<<<<<<
+ * 
+ * cdef inline object PyArray_MultiIterNew2(a, b):
  */
-      __pyx_v_f = ((char *)"Zd");
-      break;
-      case NPY_CLONGDOUBLE:
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = PyArray_MultiIterNew(1, ((void *)__pyx_v_a)); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 822, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_r = __pyx_t_1;
+  __pyx_t_1 = 0;
+  goto __pyx_L0;
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":322
- *                 elif t == NPY_CFLOAT:      f = "Zf"
- *                 elif t == NPY_CDOUBLE:     f = "Zd"
- *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
- *                 elif t == NPY_OBJECT:      f = "O"
- *                 else:
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
+ * ctypedef npy_cdouble     complex_t
+ * 
+ * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
+ *     return PyArray_MultiIterNew(1, <void*>a)
+ * 
  */
-      __pyx_v_f = ((char *)"Zg");
-      break;
-      case NPY_OBJECT:
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":323
- *                 elif t == NPY_CDOUBLE:     f = "Zd"
- *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
- *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
- *                 else:
- *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
- */
-      __pyx_v_f = ((char *)"O");
-      break;
-      default:
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_AddTraceback("numpy.PyArray_MultiIterNew1", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
 
-      /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":325
- *                 elif t == NPY_OBJECT:      f = "O"
- *                 else:
- *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
- *                 info.format = f
- *                 return
+/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
+ *     return PyArray_MultiIterNew(1, <void*>a)
+ * 
+ * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
+ *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
+ * 
  */
-      __pyx_t_3 = __Pyx_PyInt_From_int(__pyx_v_t); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 325, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_8 = PyUnicode_Format(__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_t_3); if (unlikely(!__pyx_t_8)) __PYX_ERR(1, 325, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_8);
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_8); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 325, __pyx_L1_error)
-      __Pyx_GOTREF(__pyx_t_3);
-      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __Pyx_Raise(__pyx_t_3, 0, 0, 0);
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __PYX_ERR(1, 325, __pyx_L1_error)
-      break;
-    }
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":326
- *                 else:
- *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
- *                 info.format = f             # <<<<<<<<<<<<<<
- *                 return
- *             else:
- */
-    __pyx_v_info->format = __pyx_v_f;
+static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__pyx_v_a, PyObject *__pyx_v_b) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  __Pyx_RefNannySetupContext("PyArray_MultiIterNew2", 0);
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":327
- *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
- *                 info.format = f
- *                 return             # <<<<<<<<<<<<<<
- *             else:
- *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
+ * 
+ * cdef inline object PyArray_MultiIterNew2(a, b):
+ *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)             # <<<<<<<<<<<<<<
+ * 
+ * cdef inline object PyArray_MultiIterNew3(a, b, c):
  */
-    __pyx_r = 0;
-    goto __pyx_L0;
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = PyArray_MultiIterNew(2, ((void *)__pyx_v_a), ((void *)__pyx_v_b)); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 825, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_r = __pyx_t_1;
+  __pyx_t_1 = 0;
+  goto __pyx_L0;
 
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":302
- *             info.obj = self
- * 
- *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
- *                 t = descr.type_num
- *                 if ((descr.byteorder == c'>' and little_endian) or
- */
-  }
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":329
- *                 return
- *             else:
- *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
- *                 info.format[0] = c'^' # Native data types, manual alignment
- *                 offset = 0
- */
-  /*else*/ {
-    __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
-
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":330
- *             else:
- *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
- *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
- *                 offset = 0
- *                 f = _util_dtypestring(descr, info.format + 1,
- */
-    (__pyx_v_info->format[0]) = '^';
-
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":331
- *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
- *                 info.format[0] = c'^' # Native data types, manual alignment
- *                 offset = 0             # <<<<<<<<<<<<<<
- *                 f = _util_dtypestring(descr, info.format + 1,
- *                                       info.format + _buffer_format_string_len,
- */
-    __pyx_v_offset = 0;
-
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":332
- *                 info.format[0] = c'^' # Native data types, manual alignment
- *                 offset = 0
- *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
- *                                       info.format + _buffer_format_string_len,
- *                                       &offset)
- */
-    __pyx_t_9 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_9 == ((char *)NULL))) __PYX_ERR(1, 332, __pyx_L1_error)
-    __pyx_v_f = __pyx_t_9;
-
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":335
- *                                       info.format + _buffer_format_string_len,
- *                                       &offset)
- *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
- * 
- *         def __releasebuffer__(ndarray self, Py_buffer* info):
- */
-    (__pyx_v_f[0]) = '\x00';
-  }
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":258
- *         # experimental exception made for __getbuffer__ and __releasebuffer__
- *         # -- the details of this may change.
- *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
- *             # This implementation of getbuffer is geared towards Cython
- *             # requirements, and does not yet fulfill the PEP.
- */
-
-  /* function exit code */
-  __pyx_r = 0;
-  goto __pyx_L0;
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_3);
-  __Pyx_XDECREF(__pyx_t_8);
-  __Pyx_AddTraceback("numpy.ndarray.__getbuffer__", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = -1;
-  if (__pyx_v_info->obj != NULL) {
-    __Pyx_GOTREF(__pyx_v_info->obj);
-    __Pyx_DECREF(__pyx_v_info->obj); __pyx_v_info->obj = 0;
-  }
-  goto __pyx_L2;
-  __pyx_L0:;
-  if (__pyx_v_info->obj == Py_None) {
-    __Pyx_GOTREF(__pyx_v_info->obj);
-    __Pyx_DECREF(__pyx_v_info->obj); __pyx_v_info->obj = 0;
-  }
-  __pyx_L2:;
-  __Pyx_XDECREF((PyObject *)__pyx_v_descr);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
- *                 f[0] = c'\0' # Terminate format string
- * 
- *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
- *             if PyArray_HASFIELDS(self):
- *                 PyObject_Free(info.format)
- */
-
-/* Python wrapper */
-static CYTHON_UNUSED void __pyx_pw_5numpy_7ndarray_3__releasebuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info); /*proto*/
-static CYTHON_UNUSED void __pyx_pw_5numpy_7ndarray_3__releasebuffer__(PyObject *__pyx_v_self, Py_buffer *__pyx_v_info) {
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("__releasebuffer__ (wrapper)", 0);
-  __pyx_pf_5numpy_7ndarray_2__releasebuffer__(((PyArrayObject *)__pyx_v_self), ((Py_buffer *)__pyx_v_info));
-
-  /* function exit code */
-  __Pyx_RefNannyFinishContext();
-}
-
-static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info) {
-  __Pyx_RefNannyDeclarations
-  int __pyx_t_1;
-  __Pyx_RefNannySetupContext("__releasebuffer__", 0);
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
- * 
- *         def __releasebuffer__(ndarray self, Py_buffer* info):
- *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
- *                 PyObject_Free(info.format)
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
- */
-  __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
-  if (__pyx_t_1) {
-
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":339
- *         def __releasebuffer__(ndarray self, Py_buffer* info):
- *             if PyArray_HASFIELDS(self):
- *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
- *                 PyObject_Free(info.strides)
- */
-    PyObject_Free(__pyx_v_info->format);
-
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":338
- * 
- *         def __releasebuffer__(ndarray self, Py_buffer* info):
- *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
- *                 PyObject_Free(info.format)
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
- */
-  }
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
- *             if PyArray_HASFIELDS(self):
- *                 PyObject_Free(info.format)
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
- *                 PyObject_Free(info.strides)
- *                 # info.shape was stored after info.strides in the same block
- */
-  __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
-  if (__pyx_t_1) {
-
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":341
- *                 PyObject_Free(info.format)
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
- *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
- *                 # info.shape was stored after info.strides in the same block
- * 
- */
-    PyObject_Free(__pyx_v_info->strides);
-
-    /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":340
- *             if PyArray_HASFIELDS(self):
- *                 PyObject_Free(info.format)
- *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
- *                 PyObject_Free(info.strides)
- *                 # info.shape was stored after info.strides in the same block
- */
-  }
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":337
- *                 f[0] = c'\0' # Terminate format string
- * 
- *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
- *             if PyArray_HASFIELDS(self):
- *                 PyObject_Free(info.format)
- */
-
-  /* function exit code */
-  __Pyx_RefNannyFinishContext();
-}
-
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
- * ctypedef npy_cdouble     complex_t
- * 
- * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
- *     return PyArray_MultiIterNew(1, <void*>a)
- * 
- */
-
-static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__pyx_v_a) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  __Pyx_RefNannySetupContext("PyArray_MultiIterNew1", 0);
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":822
- * 
- * cdef inline object PyArray_MultiIterNew1(a):
- *     return PyArray_MultiIterNew(1, <void*>a)             # <<<<<<<<<<<<<<
- * 
- * cdef inline object PyArray_MultiIterNew2(a, b):
- */
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyArray_MultiIterNew(1, ((void *)__pyx_v_a)); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 822, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_r = __pyx_t_1;
-  __pyx_t_1 = 0;
-  goto __pyx_L0;
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":821
- * ctypedef npy_cdouble     complex_t
- * 
- * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
- *     return PyArray_MultiIterNew(1, <void*>a)
- * 
- */
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("numpy.PyArray_MultiIterNew1", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = 0;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
- *     return PyArray_MultiIterNew(1, <void*>a)
- * 
- * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
- *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
- * 
- */
-
-static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__pyx_v_a, PyObject *__pyx_v_b) {
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  __Pyx_RefNannySetupContext("PyArray_MultiIterNew2", 0);
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
- * 
- * cdef inline object PyArray_MultiIterNew2(a, b):
- *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)             # <<<<<<<<<<<<<<
- * 
- * cdef inline object PyArray_MultiIterNew3(a, b, c):
- */
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = PyArray_MultiIterNew(2, ((void *)__pyx_v_a), ((void *)__pyx_v_b)); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 825, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_r = __pyx_t_1;
-  __pyx_t_1 = 0;
-  goto __pyx_L0;
-
-  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
- *     return PyArray_MultiIterNew(1, <void*>a)
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
+ *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
@@ -6010,230 +5261,11 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
   return __pyx_r;
 }
 
-/* "cfunc.to_py":65
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
- *     def wrap(object b):             # <<<<<<<<<<<<<<
- *         """wrap(b)"""
- *         return f(b)
- */
-
-/* Python wrapper */
-static PyObject *__pyx_pw_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap(PyObject *__pyx_self, PyObject *__pyx_v_b); /*proto*/
-static char __pyx_doc_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap[] = "wrap(b)";
-static PyMethodDef __pyx_mdef_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap = {"wrap", (PyCFunction)__pyx_pw_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap, METH_O, __pyx_doc_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap};
-static PyObject *__pyx_pw_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap(PyObject *__pyx_self, PyObject *__pyx_v_b) {
-  PyObject *__pyx_r = 0;
-  __Pyx_RefNannyDeclarations
-  __Pyx_RefNannySetupContext("wrap (wrapper)", 0);
-  __pyx_r = __pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(__pyx_self, ((PyObject *)__pyx_v_b));
-
-  /* function exit code */
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_b) {
-  struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_cur_scope;
-  struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_outer_scope;
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  __Pyx_RefNannySetupContext("wrap", 0);
-  __pyx_outer_scope = (struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *) __Pyx_CyFunction_GetClosure(__pyx_self);
-  __pyx_cur_scope = __pyx_outer_scope;
-
-  /* "cfunc.to_py":67
- *     def wrap(object b):
- *         """wrap(b)"""
- *         return f(b)             # <<<<<<<<<<<<<<
- *     return wrap
- * 
- */
-  __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_cur_scope->__pyx_v_f(__pyx_v_b); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 67, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_r = __pyx_t_1;
-  __pyx_t_1 = 0;
-  goto __pyx_L0;
-
-  /* "cfunc.to_py":65
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
- *     def wrap(object b):             # <<<<<<<<<<<<<<
- *         """wrap(b)"""
- *         return f(b)
- */
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("cfunc.to_py.__Pyx_CFunc_object____object___to_py.wrap", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = NULL;
-  __pyx_L0:;
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-/* "cfunc.to_py":64
- * 
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
- *     def wrap(object b):
- *         """wrap(b)"""
- */
-
-static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*__pyx_v_f)(PyObject *)) {
-  struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_cur_scope;
-  PyObject *__pyx_v_wrap = 0;
-  PyObject *__pyx_r = NULL;
-  __Pyx_RefNannyDeclarations
-  PyObject *__pyx_t_1 = NULL;
-  __Pyx_RefNannySetupContext("__Pyx_CFunc_object____object___to_py", 0);
-  __pyx_cur_scope = (struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(__pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py, __pyx_empty_tuple, NULL);
-  if (unlikely(!__pyx_cur_scope)) {
-    __pyx_cur_scope = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)Py_None);
-    __Pyx_INCREF(Py_None);
-    __PYX_ERR(2, 64, __pyx_L1_error)
-  } else {
-    __Pyx_GOTREF(__pyx_cur_scope);
-  }
-  __pyx_cur_scope->__pyx_v_f = __pyx_v_f;
-
-  /* "cfunc.to_py":65
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
- *     def wrap(object b):             # <<<<<<<<<<<<<<
- *         """wrap(b)"""
- *         return f(b)
- */
-  __pyx_t_1 = __Pyx_CyFunction_NewEx(&__pyx_mdef_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_1wrap, 0, __pyx_n_s_Pyx_CFunc_object____object___t, ((PyObject*)__pyx_cur_scope), __pyx_n_s_cfunc_to_py, __pyx_d, ((PyObject *)__pyx_codeobj__11)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 65, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_v_wrap = __pyx_t_1;
-  __pyx_t_1 = 0;
-
-  /* "cfunc.to_py":68
- *         """wrap(b)"""
- *         return f(b)
- *     return wrap             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  __Pyx_XDECREF(__pyx_r);
-  __Pyx_INCREF(__pyx_v_wrap);
-  __pyx_r = __pyx_v_wrap;
-  goto __pyx_L0;
-
-  /* "cfunc.to_py":64
- * 
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
- *     def wrap(object b):
- *         """wrap(b)"""
- */
-
-  /* function exit code */
-  __pyx_L1_error:;
-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_AddTraceback("cfunc.to_py.__Pyx_CFunc_object____object___to_py", __pyx_clineno, __pyx_lineno, __pyx_filename);
-  __pyx_r = 0;
-  __pyx_L0:;
-  __Pyx_XDECREF(__pyx_v_wrap);
-  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
-  __Pyx_XGIVEREF(__pyx_r);
-  __Pyx_RefNannyFinishContext();
-  return __pyx_r;
-}
-
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
-
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py));
-    (void) PyObject_INIT(o, t);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
-  }
-  return o;
-}
-
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
-  }
-}
-
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
-  PyVarObject_HEAD_INIT(0, 0)
-  "gensim.models._utils_any2vec.__pyx_scope_struct____Pyx_CFunc_object____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py), /*tp_basicsize*/
-  0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_dealloc*/
-  0, /*tp_print*/
-  0, /*tp_getattr*/
-  0, /*tp_setattr*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*tp_compare*/
-  #endif
-  #if PY_MAJOR_VERSION >= 3
-  0, /*tp_as_async*/
-  #endif
-  0, /*tp_repr*/
-  0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
-  0, /*tp_hash*/
-  0, /*tp_call*/
-  0, /*tp_str*/
-  0, /*tp_getattro*/
-  0, /*tp_setattro*/
-  0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER, /*tp_flags*/
-  0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
-  0, /*tp_richcompare*/
-  0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
-  0, /*tp_iternext*/
-  0, /*tp_methods*/
-  0, /*tp_members*/
-  0, /*tp_getset*/
-  0, /*tp_base*/
-  0, /*tp_dict*/
-  0, /*tp_descr_get*/
-  0, /*tp_descr_set*/
-  0, /*tp_dictoffset*/
-  0, /*tp_init*/
-  0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_new*/
-  0, /*tp_free*/
-  0, /*tp_is_gc*/
-  0, /*tp_bases*/
-  0, /*tp_mro*/
-  0, /*tp_cache*/
-  0, /*tp_subclasses*/
-  0, /*tp_weaklist*/
-  0, /*tp_del*/
-  0, /*tp_version_tag*/
-  #if PY_VERSION_HEX >= 0x030400a1
-  0, /*tp_finalize*/
-  #endif
-};
-
 static PyMethodDef __pyx_methods[] = {
   {"ft_hash_bytes", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_1ft_hash_bytes, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_ft_hash_bytes},
   {"ft_hash_broken", (PyCFunction)__pyx_pw_6gensim_6models_14_utils_any2vec_3ft_hash_broken, METH_O, __pyx_doc_6gensim_6models_14_utils_any2vec_2ft_hash_broken},
   {"compute_ngrams", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_5compute_ngrams, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_4compute_ngrams},
   {"compute_ngrams_bytes", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_7compute_ngrams_bytes, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_6compute_ngrams_bytes},
-  {"compute_ngrams_bytes_optimized", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_6gensim_6models_14_utils_any2vec_9compute_ngrams_bytes_optimized, METH_VARARGS|METH_KEYWORDS, __pyx_doc_6gensim_6models_14_utils_any2vec_8compute_ngrams_bytes_optimized},
   {0, 0, 0, 0}
 };
 
@@ -6283,20 +5315,14 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_u_Format_string_allocated_too_shor, __pyx_k_Format_string_allocated_too_shor, sizeof(__pyx_k_Format_string_allocated_too_shor), 0, 1, 0, 0},
   {&__pyx_kp_u_Format_string_allocated_too_shor_2, __pyx_k_Format_string_allocated_too_shor_2, sizeof(__pyx_k_Format_string_allocated_too_shor_2), 0, 1, 0, 0},
   {&__pyx_n_s_ImportError, __pyx_k_ImportError, sizeof(__pyx_k_ImportError), 0, 0, 1, 1},
-  {&__pyx_n_s_MB_MASK, __pyx_k_MB_MASK, sizeof(__pyx_k_MB_MASK), 0, 0, 1, 1},
-  {&__pyx_n_s_MB_START, __pyx_k_MB_START, sizeof(__pyx_k_MB_START), 0, 0, 1, 1},
   {&__pyx_kp_u_Non_native_byte_order_not_suppor, __pyx_k_Non_native_byte_order_not_suppor, sizeof(__pyx_k_Non_native_byte_order_not_suppor), 0, 1, 0, 0},
   {&__pyx_n_s_PY2, __pyx_k_PY2, sizeof(__pyx_k_PY2), 0, 0, 1, 1},
-  {&__pyx_n_s_Pyx_CFunc_object____object___t, __pyx_k_Pyx_CFunc_object____object___t, sizeof(__pyx_k_Pyx_CFunc_object____object___t), 0, 0, 1, 1},
   {&__pyx_n_s_RuntimeError, __pyx_k_RuntimeError, sizeof(__pyx_k_RuntimeError), 0, 0, 1, 1},
   {&__pyx_n_s_ValueError, __pyx_k_ValueError, sizeof(__pyx_k_ValueError), 0, 0, 1, 1},
   {&__pyx_kp_u__2, __pyx_k__2, sizeof(__pyx_k__2), 0, 1, 0, 0},
-  {&__pyx_n_s_b, __pyx_k_b, sizeof(__pyx_k_b), 0, 0, 1, 1},
-  {&__pyx_n_s_cfunc_to_py, __pyx_k_cfunc_to_py, sizeof(__pyx_k_cfunc_to_py), 0, 0, 1, 1},
   {&__pyx_n_s_cline_in_traceback, __pyx_k_cline_in_traceback, sizeof(__pyx_k_cline_in_traceback), 0, 0, 1, 1},
   {&__pyx_n_s_encode, __pyx_k_encode, sizeof(__pyx_k_encode), 0, 0, 1, 1},
   {&__pyx_n_s_import, __pyx_k_import, sizeof(__pyx_k_import), 0, 0, 1, 1},
-  {&__pyx_n_s_is_utf8_continue, __pyx_k_is_utf8_continue, sizeof(__pyx_k_is_utf8_continue), 0, 0, 1, 1},
   {&__pyx_n_s_main, __pyx_k_main, sizeof(__pyx_k_main), 0, 0, 1, 1},
   {&__pyx_n_s_max_n, __pyx_k_max_n, sizeof(__pyx_k_max_n), 0, 0, 1, 1},
   {&__pyx_n_s_min_n, __pyx_k_min_n, sizeof(__pyx_k_min_n), 0, 0, 1, 1},
@@ -6310,12 +5336,10 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_range, __pyx_k_range, sizeof(__pyx_k_range), 0, 0, 1, 1},
   {&__pyx_kp_s_s, __pyx_k_s, sizeof(__pyx_k_s), 0, 0, 1, 0},
   {&__pyx_n_s_six, __pyx_k_six, sizeof(__pyx_k_six), 0, 0, 1, 1},
-  {&__pyx_kp_s_stringsource, __pyx_k_stringsource, sizeof(__pyx_k_stringsource), 0, 0, 1, 0},
   {&__pyx_n_s_test, __pyx_k_test, sizeof(__pyx_k_test), 0, 0, 1, 1},
   {&__pyx_kp_u_unknown_dtype_code_in_numpy_pxd, __pyx_k_unknown_dtype_code_in_numpy_pxd, sizeof(__pyx_k_unknown_dtype_code_in_numpy_pxd), 0, 1, 0, 0},
   {&__pyx_kp_s_utf_8, __pyx_k_utf_8, sizeof(__pyx_k_utf_8), 0, 0, 1, 0},
   {&__pyx_n_s_word, __pyx_k_word, sizeof(__pyx_k_word), 0, 0, 1, 1},
-  {&__pyx_n_s_wrap, __pyx_k_wrap, sizeof(__pyx_k_wrap), 0, 0, 1, 1},
   {0, 0, 0, 0, 0, 0, 0}
 };
 static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
@@ -6408,18 +5432,6 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
   __pyx_tuple__9 = PyTuple_Pack(1, __pyx_kp_s_numpy_core_umath_failed_to_impor); if (unlikely(!__pyx_tuple__9)) __PYX_ERR(1, 1044, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__9);
   __Pyx_GIVEREF(__pyx_tuple__9);
-
-  /* "cfunc.to_py":65
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):
- *     def wrap(object b):             # <<<<<<<<<<<<<<
- *         """wrap(b)"""
- *         return f(b)
- */
-  __pyx_tuple__10 = PyTuple_Pack(1, __pyx_n_s_b); if (unlikely(!__pyx_tuple__10)) __PYX_ERR(2, 65, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_tuple__10);
-  __Pyx_GIVEREF(__pyx_tuple__10);
-  __pyx_codeobj__11 = (PyObject*)__Pyx_PyCode_New(1, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__10, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_wrap, 65, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__11)) __PYX_ERR(2, 65, __pyx_L1_error)
   __Pyx_RefNannyFinishContext();
   return 0;
   __pyx_L1_error:;
@@ -6431,8 +5443,6 @@ static CYTHON_SMALL_CODE int __Pyx_InitGlobals(void) {
   if (__Pyx_InitStrings(__pyx_string_tab) < 0) __PYX_ERR(0, 1, __pyx_L1_error);
   __pyx_int_0 = PyInt_FromLong(0); if (unlikely(!__pyx_int_0)) __PYX_ERR(0, 1, __pyx_L1_error)
   __pyx_int_1 = PyInt_FromLong(1); if (unlikely(!__pyx_int_1)) __PYX_ERR(0, 1, __pyx_L1_error)
-  __pyx_int_128 = PyInt_FromLong(128); if (unlikely(!__pyx_int_128)) __PYX_ERR(0, 1, __pyx_L1_error)
-  __pyx_int_192 = PyInt_FromLong(192); if (unlikely(!__pyx_int_192)) __PYX_ERR(0, 1, __pyx_L1_error)
   return 0;
   __pyx_L1_error:;
   return -1;
@@ -6474,17 +5484,8 @@ static int __Pyx_modinit_type_init_code(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_modinit_type_init_code", 0);
   /*--- Type init code ---*/
-  if (PyType_Ready(&__pyx_scope_struct____Pyx_CFunc_object____object___to_py) < 0) __PYX_ERR(2, 64, __pyx_L1_error)
-  __pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_print = 0;
-  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_dictoffset && __pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_getattro == PyObject_GenericGetAttr)) {
-    __pyx_scope_struct____Pyx_CFunc_object____object___to_py.tp_getattro = __Pyx_PyObject_GenericGetAttrNoDict;
-  }
-  __pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py = &__pyx_scope_struct____Pyx_CFunc_object____object___to_py;
   __Pyx_RefNannyFinishContext();
   return 0;
-  __pyx_L1_error:;
-  __Pyx_RefNannyFinishContext();
-  return -1;
 }
 
 static int __Pyx_modinit_type_import_code(void) {
@@ -6492,7 +5493,7 @@ static int __Pyx_modinit_type_import_code(void) {
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("__Pyx_modinit_type_import_code", 0);
   /*--- Type import code ---*/
-  __pyx_t_1 = PyImport_ImportModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_t_1)) __PYX_ERR(3, 9, __pyx_L1_error)
+  __pyx_t_1 = PyImport_ImportModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 9, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_ptype_7cpython_4type_type = __Pyx_ImportType(__pyx_t_1, __Pyx_BUILTIN_MODULE_NAME, "type", 
   #if defined(PYPY_VERSION_NUM) && PYPY_VERSION_NUM < 0x050B0000
@@ -6501,7 +5502,7 @@ static int __Pyx_modinit_type_import_code(void) {
   sizeof(PyHeapTypeObject),
   #endif
   __Pyx_ImportType_CheckSize_Warn);
-   if (!__pyx_ptype_7cpython_4type_type) __PYX_ERR(3, 9, __pyx_L1_error)
+   if (!__pyx_ptype_7cpython_4type_type) __PYX_ERR(2, 9, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = PyImport_ImportModule("numpy"); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 206, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
@@ -6634,7 +5635,6 @@ static CYTHON_SMALL_CODE int __pyx_pymod_exec__utils_any2vec(PyObject *__pyx_pyi
 {
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
-  int __pyx_t_3;
   __Pyx_RefNannyDeclarations
   #if CYTHON_PEP489_MULTI_PHASE_INIT
   if (__pyx_m) {
@@ -6731,7 +5731,7 @@ if (!__Pyx_RefNanny) {
   (void)__Pyx_modinit_global_init_code();
   (void)__Pyx_modinit_variable_export_code();
   (void)__Pyx_modinit_function_export_code();
-  if (unlikely(__Pyx_modinit_type_init_code() != 0)) goto __pyx_L1_error;
+  (void)__Pyx_modinit_type_init_code();
   if (unlikely(__Pyx_modinit_type_import_code() != 0)) goto __pyx_L1_error;
   (void)__Pyx_modinit_variable_import_code();
   (void)__Pyx_modinit_function_import_code();
@@ -6776,45 +5776,20 @@ if (!__Pyx_RefNanny) {
   /* "gensim/models/_utils_any2vec.pyx":100
  * # as opposed to a new character.
  * #
- * _MB_MASK = 0xC0             # <<<<<<<<<<<<<<
- * _MB_START = 0x80
+ * cdef unsigned char _MB_MASK = 0xC0             # <<<<<<<<<<<<<<
+ * cdef unsigned char _MB_START = 0x80
  * 
  */
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_MASK, __pyx_int_192) < 0) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_v_6gensim_6models_14_utils_any2vec__MB_MASK = 0xC0;
 
   /* "gensim/models/_utils_any2vec.pyx":101
  * #
- * _MB_MASK = 0xC0
- * _MB_START = 0x80             # <<<<<<<<<<<<<<
- * 
- * 
- */
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_MB_START, __pyx_int_128) < 0) __PYX_ERR(0, 101, __pyx_L1_error)
-
-  /* "gensim/models/_utils_any2vec.pyx":112
- * 
- * 
- * _is_utf8_continue = _is_utf8_continue_py2 if PY2 else _is_utf8_continue_py3             # <<<<<<<<<<<<<<
+ * cdef unsigned char _MB_MASK = 0xC0
+ * cdef unsigned char _MB_START = 0x80             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_PY2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) __PYX_ERR(0, 112, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  if (__pyx_t_3) {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = __pyx_t_1;
-    __pyx_t_1 = 0;
-  } else {
-    __pyx_t_1 = __Pyx_CFunc_object____object___to_py(__pyx_f_6gensim_6models_14_utils_any2vec__is_utf8_continue_py3); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
-    __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = __pyx_t_1;
-    __pyx_t_1 = 0;
-  }
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_is_utf8_continue, __pyx_t_2) < 0) __PYX_ERR(0, 112, __pyx_L1_error)
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_v_6gensim_6models_14_utils_any2vec__MB_START = 0x80;
 
   /* "gensim/models/_utils_any2vec.pyx":1
  * #!/usr/bin/env cython             # <<<<<<<<<<<<<<
@@ -6826,12 +5801,12 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_2) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cfunc.to_py":64
+  /* "../../envs/gensim/lib/python3.7/site-packages/Cython/Includes/numpy/__init__.pxd":1046
+ *         raise ImportError("numpy.core.umath failed to import")
  * 
- * @cname("__Pyx_CFunc_object____object___to_py")
- * cdef object __Pyx_CFunc_object____object___to_py(object (*f)(object) ):             # <<<<<<<<<<<<<<
- *     def wrap(object b):
- *         """wrap(b)"""
+ * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
+ *     try:
+ *         _import_umath()
  */
 
   /*--- Wrapped vars code ---*/
@@ -7374,41 +6349,6 @@ static int __Pyx_ParseOptionalKeywords(
     return -1;
 }
 
-/* GetModuleGlobalName */
-#if CYTHON_USE_DICT_VERSIONS
-static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
-#else
-static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
-#endif
-{
-    PyObject *result;
-#if !CYTHON_AVOID_BORROWED_REFS
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
-    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    } else if (unlikely(PyErr_Occurred())) {
-        return NULL;
-    }
-#else
-    result = PyDict_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    }
-#endif
-#else
-    result = PyObject_GetItem(__pyx_d, name);
-    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
-    if (likely(result)) {
-        return __Pyx_NewRef(result);
-    }
-    PyErr_Clear();
-#endif
-    return __Pyx_GetBuiltinName(name);
-}
-
 /* PyCFunctionFastCall */
 #if CYTHON_FAST_PYCCALL
 static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
@@ -7640,93 +6580,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObjec
 }
 #endif
 
-/* GetItemInt */
-static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
-    PyObject *r;
-    if (!j) return NULL;
-    r = PyObject_GetItem(o, j);
-    Py_DECREF(j);
-    return r;
-}
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
-                                                              CYTHON_NCP_UNUSED int wraparound,
-                                                              CYTHON_NCP_UNUSED int boundscheck) {
-#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-    Py_ssize_t wrapped_i = i;
-    if (wraparound & unlikely(i < 0)) {
-        wrapped_i += PyList_GET_SIZE(o);
-    }
-    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyList_GET_SIZE(o)))) {
-        PyObject *r = PyList_GET_ITEM(o, wrapped_i);
-        Py_INCREF(r);
-        return r;
-    }
-    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
-#else
-    return PySequence_GetItem(o, i);
-#endif
-}
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
-                                                              CYTHON_NCP_UNUSED int wraparound,
-                                                              CYTHON_NCP_UNUSED int boundscheck) {
-#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-    Py_ssize_t wrapped_i = i;
-    if (wraparound & unlikely(i < 0)) {
-        wrapped_i += PyTuple_GET_SIZE(o);
-    }
-    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyTuple_GET_SIZE(o)))) {
-        PyObject *r = PyTuple_GET_ITEM(o, wrapped_i);
-        Py_INCREF(r);
-        return r;
-    }
-    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
-#else
-    return PySequence_GetItem(o, i);
-#endif
-}
-static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, int is_list,
-                                                     CYTHON_NCP_UNUSED int wraparound,
-                                                     CYTHON_NCP_UNUSED int boundscheck) {
-#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
-    if (is_list || PyList_CheckExact(o)) {
-        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
-        if ((!boundscheck) || (likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o))))) {
-            PyObject *r = PyList_GET_ITEM(o, n);
-            Py_INCREF(r);
-            return r;
-        }
-    }
-    else if (PyTuple_CheckExact(o)) {
-        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
-        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyTuple_GET_SIZE(o)))) {
-            PyObject *r = PyTuple_GET_ITEM(o, n);
-            Py_INCREF(r);
-            return r;
-        }
-    } else {
-        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
-        if (likely(m && m->sq_item)) {
-            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
-                Py_ssize_t l = m->sq_length(o);
-                if (likely(l >= 0)) {
-                    i += l;
-                } else {
-                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
-                        return NULL;
-                    PyErr_Clear();
-                }
-            }
-            return m->sq_item(o, i);
-        }
-    }
-#else
-    if (is_list || PySequence_Check(o)) {
-        return PySequence_GetItem(o, i);
-    }
-#endif
-    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
-}
-
 /* PyErrFetchRestore */
 #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
@@ -7951,849 +6804,174 @@ static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
 static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
 }
-
-/* ExtTypeTest */
-static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
-    if (unlikely(!type)) {
-        PyErr_SetString(PyExc_SystemError, "Missing type object");
-        return 0;
-    }
-    if (likely(__Pyx_TypeCheck(obj, type)))
-        return 1;
-    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
-                 Py_TYPE(obj)->tp_name, type->tp_name);
-    return 0;
-}
-
-/* GetTopmostException */
-#if CYTHON_USE_EXC_INFO_STACK
-static _PyErr_StackItem *
-__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
-{
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
-           exc_info->previous_item != NULL)
-    {
-        exc_info = exc_info->previous_item;
-    }
-    return exc_info;
-}
-#endif
-
-/* SaveResetException */
-#if CYTHON_FAST_THREAD_STATE
-static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
-    *type = exc_info->exc_type;
-    *value = exc_info->exc_value;
-    *tb = exc_info->exc_traceback;
-    #else
-    *type = tstate->exc_type;
-    *value = tstate->exc_value;
-    *tb = tstate->exc_traceback;
-    #endif
-    Py_XINCREF(*type);
-    Py_XINCREF(*value);
-    Py_XINCREF(*tb);
-}
-static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if CYTHON_USE_EXC_INFO_STACK
-    _PyErr_StackItem *exc_info = tstate->exc_info;
-    tmp_type = exc_info->exc_type;
-    tmp_value = exc_info->exc_value;
-    tmp_tb = exc_info->exc_traceback;
-    exc_info->exc_type = type;
-    exc_info->exc_value = value;
-    exc_info->exc_traceback = tb;
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = type;
-    tstate->exc_value = value;
-    tstate->exc_traceback = tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-}
-#endif
-
-/* PyErrExceptionMatches */
-#if CYTHON_FAST_THREAD_STATE
-static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
-    Py_ssize_t i, n;
-    n = PyTuple_GET_SIZE(tuple);
-#if PY_MAJOR_VERSION >= 3
-    for (i=0; i<n; i++) {
-        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
-    }
-#endif
-    for (i=0; i<n; i++) {
-        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
-    }
-    return 0;
-}
-static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
-    PyObject *exc_type = tstate->curexc_type;
-    if (exc_type == err) return 1;
-    if (unlikely(!exc_type)) return 0;
-    if (unlikely(PyTuple_Check(err)))
-        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
-    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
-}
-#endif
-
-/* GetException */
-#if CYTHON_FAST_THREAD_STATE
-static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
-#else
-static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
-#endif
-{
-    PyObject *local_type, *local_value, *local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    local_type = tstate->curexc_type;
-    local_value = tstate->curexc_value;
-    local_tb = tstate->curexc_traceback;
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
-#else
-    PyErr_Fetch(&local_type, &local_value, &local_tb);
-#endif
-    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
-#if CYTHON_FAST_THREAD_STATE
-    if (unlikely(tstate->curexc_type))
-#else
-    if (unlikely(PyErr_Occurred()))
-#endif
-        goto bad;
-    #if PY_MAJOR_VERSION >= 3
-    if (local_tb) {
-        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
-            goto bad;
-    }
-    #endif
-    Py_XINCREF(local_tb);
-    Py_XINCREF(local_type);
-    Py_XINCREF(local_value);
-    *type = local_type;
-    *value = local_value;
-    *tb = local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    #if CYTHON_USE_EXC_INFO_STACK
-    {
-        _PyErr_StackItem *exc_info = tstate->exc_info;
-        tmp_type = exc_info->exc_type;
-        tmp_value = exc_info->exc_value;
-        tmp_tb = exc_info->exc_traceback;
-        exc_info->exc_type = local_type;
-        exc_info->exc_value = local_value;
-        exc_info->exc_traceback = local_tb;
-    }
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = local_type;
-    tstate->exc_value = local_value;
-    tstate->exc_traceback = local_tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-#else
-    PyErr_SetExcInfo(local_type, local_value, local_tb);
-#endif
-    return 0;
-bad:
-    *type = 0;
-    *value = 0;
-    *tb = 0;
-    Py_XDECREF(local_type);
-    Py_XDECREF(local_value);
-    Py_XDECREF(local_tb);
-    return -1;
-}
-
-/* FetchCommonType */
-static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
-    PyObject* fake_module;
-    PyTypeObject* cached_type = NULL;
-    fake_module = PyImport_AddModule((char*) "_cython_" CYTHON_ABI);
-    if (!fake_module) return NULL;
-    Py_INCREF(fake_module);
-    cached_type = (PyTypeObject*) PyObject_GetAttrString(fake_module, type->tp_name);
-    if (cached_type) {
-        if (!PyType_Check((PyObject*)cached_type)) {
-            PyErr_Format(PyExc_TypeError,
-                "Shared Cython type %.200s is not a type object",
-                type->tp_name);
-            goto bad;
-        }
-        if (cached_type->tp_basicsize != type->tp_basicsize) {
-            PyErr_Format(PyExc_TypeError,
-                "Shared Cython type %.200s has the wrong size, try recompiling",
-                type->tp_name);
-            goto bad;
-        }
-    } else {
-        if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
-        PyErr_Clear();
-        if (PyType_Ready(type) < 0) goto bad;
-        if (PyObject_SetAttrString(fake_module, type->tp_name, (PyObject*) type) < 0)
-            goto bad;
-        Py_INCREF(type);
-        cached_type = type;
-    }
-done:
-    Py_DECREF(fake_module);
-    return cached_type;
-bad:
-    Py_XDECREF(cached_type);
-    cached_type = NULL;
-    goto done;
-}
-
-/* CythonFunction */
-#include <structmember.h>
-static PyObject *
-__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
-{
-    if (unlikely(op->func_doc == NULL)) {
-        if (op->func.m_ml->ml_doc) {
-#if PY_MAJOR_VERSION >= 3
-            op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc);
-#else
-            op->func_doc = PyString_FromString(op->func.m_ml->ml_doc);
-#endif
-            if (unlikely(op->func_doc == NULL))
-                return NULL;
-        } else {
-            Py_INCREF(Py_None);
-            return Py_None;
-        }
-    }
-    Py_INCREF(op->func_doc);
-    return op->func_doc;
-}
-static int
-__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
-{
-    PyObject *tmp = op->func_doc;
-    if (value == NULL) {
-        value = Py_None;
-    }
-    Py_INCREF(value);
-    op->func_doc = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    if (unlikely(op->func_name == NULL)) {
-#if PY_MAJOR_VERSION >= 3
-        op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name);
-#else
-        op->func_name = PyString_InternFromString(op->func.m_ml->ml_name);
-#endif
-        if (unlikely(op->func_name == NULL))
-            return NULL;
-    }
-    Py_INCREF(op->func_name);
-    return op->func_name;
-}
-static int
-__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
-{
-    PyObject *tmp;
-#if PY_MAJOR_VERSION >= 3
-    if (unlikely(value == NULL || !PyUnicode_Check(value)))
-#else
-    if (unlikely(value == NULL || !PyString_Check(value)))
-#endif
-    {
-        PyErr_SetString(PyExc_TypeError,
-                        "__name__ must be set to a string object");
-        return -1;
-    }
-    tmp = op->func_name;
-    Py_INCREF(value);
-    op->func_name = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    Py_INCREF(op->func_qualname);
-    return op->func_qualname;
-}
-static int
-__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
-{
-    PyObject *tmp;
-#if PY_MAJOR_VERSION >= 3
-    if (unlikely(value == NULL || !PyUnicode_Check(value)))
-#else
-    if (unlikely(value == NULL || !PyString_Check(value)))
-#endif
-    {
-        PyErr_SetString(PyExc_TypeError,
-                        "__qualname__ must be set to a string object");
-        return -1;
-    }
-    tmp = op->func_qualname;
-    Py_INCREF(value);
-    op->func_qualname = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure)
-{
-    PyObject *self;
-    self = m->func_closure;
-    if (self == NULL)
-        self = Py_None;
-    Py_INCREF(self);
-    return self;
-}
-static PyObject *
-__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    if (unlikely(op->func_dict == NULL)) {
-        op->func_dict = PyDict_New();
-        if (unlikely(op->func_dict == NULL))
-            return NULL;
-    }
-    Py_INCREF(op->func_dict);
-    return op->func_dict;
-}
-static int
-__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value, CYTHON_UNUSED void *context)
-{
-    PyObject *tmp;
-    if (unlikely(value == NULL)) {
-        PyErr_SetString(PyExc_TypeError,
-               "function's dictionary may not be deleted");
-        return -1;
-    }
-    if (unlikely(!PyDict_Check(value))) {
-        PyErr_SetString(PyExc_TypeError,
-               "setting function's dictionary to a non-dict");
-        return -1;
-    }
-    tmp = op->func_dict;
-    Py_INCREF(value);
-    op->func_dict = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    Py_INCREF(op->func_globals);
-    return op->func_globals;
-}
-static PyObject *
-__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    Py_INCREF(Py_None);
-    return Py_None;
-}
-static PyObject *
-__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context)
-{
-    PyObject* result = (op->func_code) ? op->func_code : Py_None;
-    Py_INCREF(result);
-    return result;
-}
-static int
-__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
-    int result = 0;
-    PyObject *res = op->defaults_getter((PyObject *) op);
-    if (unlikely(!res))
-        return -1;
-    #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
-    Py_INCREF(op->defaults_tuple);
-    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
-    Py_INCREF(op->defaults_kwdict);
-    #else
-    op->defaults_tuple = PySequence_ITEM(res, 0);
-    if (unlikely(!op->defaults_tuple)) result = -1;
-    else {
-        op->defaults_kwdict = PySequence_ITEM(res, 1);
-        if (unlikely(!op->defaults_kwdict)) result = -1;
-    }
-    #endif
-    Py_DECREF(res);
-    return result;
-}
-static int
-__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value, CYTHON_UNUSED void *context) {
-    PyObject* tmp;
-    if (!value) {
-        value = Py_None;
-    } else if (value != Py_None && !PyTuple_Check(value)) {
-        PyErr_SetString(PyExc_TypeError,
-                        "__defaults__ must be set to a tuple object");
-        return -1;
-    }
-    Py_INCREF(value);
-    tmp = op->defaults_tuple;
-    op->defaults_tuple = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context) {
-    PyObject* result = op->defaults_tuple;
-    if (unlikely(!result)) {
-        if (op->defaults_getter) {
-            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
-            result = op->defaults_tuple;
-        } else {
-            result = Py_None;
-        }
-    }
-    Py_INCREF(result);
-    return result;
-}
-static int
-__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value, CYTHON_UNUSED void *context) {
-    PyObject* tmp;
-    if (!value) {
-        value = Py_None;
-    } else if (value != Py_None && !PyDict_Check(value)) {
-        PyErr_SetString(PyExc_TypeError,
-                        "__kwdefaults__ must be set to a dict object");
-        return -1;
-    }
-    Py_INCREF(value);
-    tmp = op->defaults_kwdict;
-    op->defaults_kwdict = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context) {
-    PyObject* result = op->defaults_kwdict;
-    if (unlikely(!result)) {
-        if (op->defaults_getter) {
-            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
-            result = op->defaults_kwdict;
-        } else {
-            result = Py_None;
-        }
-    }
-    Py_INCREF(result);
-    return result;
-}
-static int
-__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value, CYTHON_UNUSED void *context) {
-    PyObject* tmp;
-    if (!value || value == Py_None) {
-        value = NULL;
-    } else if (!PyDict_Check(value)) {
-        PyErr_SetString(PyExc_TypeError,
-                        "__annotations__ must be set to a dict object");
-        return -1;
-    }
-    Py_XINCREF(value);
-    tmp = op->func_annotations;
-    op->func_annotations = value;
-    Py_XDECREF(tmp);
-    return 0;
-}
-static PyObject *
-__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *context) {
-    PyObject* result = op->func_annotations;
-    if (unlikely(!result)) {
-        result = PyDict_New();
-        if (unlikely(!result)) return NULL;
-        op->func_annotations = result;
-    }
-    Py_INCREF(result);
-    return result;
-}
-static PyGetSetDef __pyx_CyFunction_getsets[] = {
-    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
-    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
-    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
-    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
-    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
-    {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0},
-    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
-    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
-    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
-    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
-    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
-    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
-    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
-    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
-    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
-    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
-    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
-    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
-    {0, 0, 0, 0, 0}
-};
-static PyMemberDef __pyx_CyFunction_members[] = {
-    {(char *) "__module__", T_OBJECT, offsetof(PyCFunctionObject, m_module), PY_WRITE_RESTRICTED, 0},
-    {0, 0, 0,  0, 0}
-};
-static PyObject *
-__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
-{
-#if PY_MAJOR_VERSION >= 3
-    return PyUnicode_FromString(m->func.m_ml->ml_name);
-#else
-    return PyString_FromString(m->func.m_ml->ml_name);
-#endif
-}
-static PyMethodDef __pyx_CyFunction_methods[] = {
-    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
-    {0, 0, 0, 0}
-};
-#if PY_VERSION_HEX < 0x030500A0
-#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
-#else
-#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist)
-#endif
-static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname,
-                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
-    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
-    if (op == NULL)
-        return NULL;
-    op->flags = flags;
-    __Pyx_CyFunction_weakreflist(op) = NULL;
-    op->func.m_ml = ml;
-    op->func.m_self = (PyObject *) op;
-    Py_XINCREF(closure);
-    op->func_closure = closure;
-    Py_XINCREF(module);
-    op->func.m_module = module;
-    op->func_dict = NULL;
-    op->func_name = NULL;
-    Py_INCREF(qualname);
-    op->func_qualname = qualname;
-    op->func_doc = NULL;
-    op->func_classobj = NULL;
-    op->func_globals = globals;
-    Py_INCREF(op->func_globals);
-    Py_XINCREF(code);
-    op->func_code = code;
-    op->defaults_pyobjects = 0;
-    op->defaults = NULL;
-    op->defaults_tuple = NULL;
-    op->defaults_kwdict = NULL;
-    op->defaults_getter = NULL;
-    op->func_annotations = NULL;
-    PyObject_GC_Track(op);
-    return (PyObject *) op;
-}
-static int
-__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
-{
-    Py_CLEAR(m->func_closure);
-    Py_CLEAR(m->func.m_module);
-    Py_CLEAR(m->func_dict);
-    Py_CLEAR(m->func_name);
-    Py_CLEAR(m->func_qualname);
-    Py_CLEAR(m->func_doc);
-    Py_CLEAR(m->func_globals);
-    Py_CLEAR(m->func_code);
-    Py_CLEAR(m->func_classobj);
-    Py_CLEAR(m->defaults_tuple);
-    Py_CLEAR(m->defaults_kwdict);
-    Py_CLEAR(m->func_annotations);
-    if (m->defaults) {
-        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
-        int i;
-        for (i = 0; i < m->defaults_pyobjects; i++)
-            Py_XDECREF(pydefaults[i]);
-        PyObject_Free(m->defaults);
-        m->defaults = NULL;
+
+/* ExtTypeTest */
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
     }
+    if (likely(__Pyx_TypeCheck(obj, type)))
+        return 1;
+    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
+                 Py_TYPE(obj)->tp_name, type->tp_name);
     return 0;
 }
-static void __Pyx__CyFunction_dealloc(__pyx_CyFunctionObject *m)
+
+/* GetTopmostException */
+#if CYTHON_USE_EXC_INFO_STACK
+static _PyErr_StackItem *
+__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
 {
-    if (__Pyx_CyFunction_weakreflist(m) != NULL)
-        PyObject_ClearWeakRefs((PyObject *) m);
-    __Pyx_CyFunction_clear(m);
-    PyObject_GC_Del(m);
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
+           exc_info->previous_item != NULL)
+    {
+        exc_info = exc_info->previous_item;
+    }
+    return exc_info;
 }
-static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
-{
-    PyObject_GC_UnTrack(m);
-    __Pyx__CyFunction_dealloc(m);
+#endif
+
+/* SaveResetException */
+#if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
+    *type = exc_info->exc_type;
+    *value = exc_info->exc_value;
+    *tb = exc_info->exc_traceback;
+    #else
+    *type = tstate->exc_type;
+    *value = tstate->exc_value;
+    *tb = tstate->exc_traceback;
+    #endif
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
 }
-static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
-{
-    Py_VISIT(m->func_closure);
-    Py_VISIT(m->func.m_module);
-    Py_VISIT(m->func_dict);
-    Py_VISIT(m->func_name);
-    Py_VISIT(m->func_qualname);
-    Py_VISIT(m->func_doc);
-    Py_VISIT(m->func_globals);
-    Py_VISIT(m->func_code);
-    Py_VISIT(m->func_classobj);
-    Py_VISIT(m->defaults_tuple);
-    Py_VISIT(m->defaults_kwdict);
-    if (m->defaults) {
-        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
-        int i;
-        for (i = 0; i < m->defaults_pyobjects; i++)
-            Py_VISIT(pydefaults[i]);
-    }
-    return 0;
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_type = exc_info->exc_type;
+    tmp_value = exc_info->exc_value;
+    tmp_tb = exc_info->exc_traceback;
+    exc_info->exc_type = type;
+    exc_info->exc_value = value;
+    exc_info->exc_traceback = tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = type;
+    tstate->exc_value = value;
+    tstate->exc_traceback = tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
 }
-static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
-{
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
-        Py_INCREF(func);
-        return func;
-    }
-    if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) {
-        if (type == NULL)
-            type = (PyObject *)(Py_TYPE(obj));
-        return __Pyx_PyMethod_New(func, type, (PyObject *)(Py_TYPE(type)));
-    }
-    if (obj == Py_None)
-        obj = NULL;
-    return __Pyx_PyMethod_New(func, obj, type);
-}
-static PyObject*
-__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
-{
+#endif
+
+/* PyErrExceptionMatches */
+#if CYTHON_FAST_THREAD_STATE
+static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    n = PyTuple_GET_SIZE(tuple);
 #if PY_MAJOR_VERSION >= 3
-    return PyUnicode_FromFormat("<cyfunction %U at %p>",
-                                op->func_qualname, (void *)op);
-#else
-    return PyString_FromFormat("<cyfunction %s at %p>",
-                               PyString_AsString(op->func_qualname), (void *)op);
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
 #endif
-}
-static PyObject * __Pyx_CyFunction_CallMethod(PyObject *func, PyObject *self, PyObject *arg, PyObject *kw) {
-    PyCFunctionObject* f = (PyCFunctionObject*)func;
-    PyCFunction meth = f->m_ml->ml_meth;
-    Py_ssize_t size;
-    switch (f->m_ml->ml_flags & (METH_VARARGS | METH_KEYWORDS | METH_NOARGS | METH_O)) {
-    case METH_VARARGS:
-        if (likely(kw == NULL || PyDict_Size(kw) == 0))
-            return (*meth)(self, arg);
-        break;
-    case METH_VARARGS | METH_KEYWORDS:
-        return (*(PyCFunctionWithKeywords)(void*)meth)(self, arg, kw);
-    case METH_NOARGS:
-        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
-            size = PyTuple_GET_SIZE(arg);
-            if (likely(size == 0))
-                return (*meth)(self, NULL);
-            PyErr_Format(PyExc_TypeError,
-                "%.200s() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)",
-                f->m_ml->ml_name, size);
-            return NULL;
-        }
-        break;
-    case METH_O:
-        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
-            size = PyTuple_GET_SIZE(arg);
-            if (likely(size == 1)) {
-                PyObject *result, *arg0;
-                #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
-                arg0 = PyTuple_GET_ITEM(arg, 0);
-                #else
-                arg0 = PySequence_ITEM(arg, 0); if (unlikely(!arg0)) return NULL;
-                #endif
-                result = (*meth)(self, arg0);
-                #if !(CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS)
-                Py_DECREF(arg0);
-                #endif
-                return result;
-            }
-            PyErr_Format(PyExc_TypeError,
-                "%.200s() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)",
-                f->m_ml->ml_name, size);
-            return NULL;
-        }
-        break;
-    default:
-        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
-                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
-                        "longer supported!");
-        return NULL;
+    for (i=0; i<n; i++) {
+        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
     }
-    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
-                 f->m_ml->ml_name);
-    return NULL;
-}
-static CYTHON_INLINE PyObject *__Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
-    return __Pyx_CyFunction_CallMethod(func, ((PyCFunctionObject*)func)->m_self, arg, kw);
+    return 0;
 }
-static PyObject *__Pyx_CyFunction_CallAsMethod(PyObject *func, PyObject *args, PyObject *kw) {
-    PyObject *result;
-    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *) func;
-    if ((cyfunc->flags & __Pyx_CYFUNCTION_CCLASS) && !(cyfunc->flags & __Pyx_CYFUNCTION_STATICMETHOD)) {
-        Py_ssize_t argc;
-        PyObject *new_args;
-        PyObject *self;
-        argc = PyTuple_GET_SIZE(args);
-        new_args = PyTuple_GetSlice(args, 1, argc);
-        if (unlikely(!new_args))
-            return NULL;
-        self = PyTuple_GetItem(args, 0);
-        if (unlikely(!self)) {
-            Py_DECREF(new_args);
-            return NULL;
-        }
-        result = __Pyx_CyFunction_CallMethod(func, self, new_args, kw);
-        Py_DECREF(new_args);
-    } else {
-        result = __Pyx_CyFunction_Call(func, args, kw);
-    }
-    return result;
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
+    PyObject *exc_type = tstate->curexc_type;
+    if (exc_type == err) return 1;
+    if (unlikely(!exc_type)) return 0;
+    if (unlikely(PyTuple_Check(err)))
+        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
+    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
 }
-static PyTypeObject __pyx_CyFunctionType_type = {
-    PyVarObject_HEAD_INIT(0, 0)
-    "cython_function_or_method",
-    sizeof(__pyx_CyFunctionObject),
-    0,
-    (destructor) __Pyx_CyFunction_dealloc,
-    0,
-    0,
-    0,
-#if PY_MAJOR_VERSION < 3
-    0,
+#endif
+
+/* GetException */
+#if CYTHON_FAST_THREAD_STATE
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
 #else
-    0,
-#endif
-    (reprfunc) __Pyx_CyFunction_repr,
-    0,
-    0,
-    0,
-    0,
-    __Pyx_CyFunction_CallAsMethod,
-    0,
-    0,
-    0,
-    0,
-    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
-    0,
-    (traverseproc) __Pyx_CyFunction_traverse,
-    (inquiry) __Pyx_CyFunction_clear,
-    0,
-#if PY_VERSION_HEX < 0x030500A0
-    offsetof(__pyx_CyFunctionObject, func_weakreflist),
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
+#endif
+{
+    PyObject *local_type, *local_value, *local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
 #else
-    offsetof(PyCFunctionObject, m_weakreflist),
-#endif
-    0,
-    0,
-    __pyx_CyFunction_methods,
-    __pyx_CyFunction_members,
-    __pyx_CyFunction_getsets,
-    0,
-    0,
-    __Pyx_CyFunction_descr_get,
-    0,
-    offsetof(__pyx_CyFunctionObject, func_dict),
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-#if PY_VERSION_HEX >= 0x030400a1
-    0,
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
 #endif
-};
-static int __pyx_CyFunction_init(void) {
-    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
-    if (unlikely(__pyx_CyFunctionType == NULL)) {
-        return -1;
-    }
-    return 0;
-}
-static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    m->defaults = PyObject_Malloc(size);
-    if (unlikely(!m->defaults))
-        return PyErr_NoMemory();
-    memset(m->defaults, 0, size);
-    m->defaults_pyobjects = pyobjects;
-    return m->defaults;
-}
-static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    m->defaults_tuple = tuple;
-    Py_INCREF(tuple);
-}
-static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    m->defaults_kwdict = dict;
-    Py_INCREF(dict);
-}
-static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
-    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
-    m->func_annotations = dict;
-    Py_INCREF(dict);
-}
-
-/* PyObject_GenericGetAttrNoDict */
-#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
-static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) {
-    PyErr_Format(PyExc_AttributeError,
-#if PY_MAJOR_VERSION >= 3
-                 "'%.50s' object has no attribute '%U'",
-                 tp->tp_name, attr_name);
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_FAST_THREAD_STATE
+    if (unlikely(tstate->curexc_type))
 #else
-                 "'%.50s' object has no attribute '%.400s'",
-                 tp->tp_name, PyString_AS_STRING(attr_name));
+    if (unlikely(PyErr_Occurred()))
 #endif
-    return NULL;
-}
-static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) {
-    PyObject *descr;
-    PyTypeObject *tp = Py_TYPE(obj);
-    if (unlikely(!PyString_Check(attr_name))) {
-        return PyObject_GenericGetAttr(obj, attr_name);
-    }
-    assert(!tp->tp_dictoffset);
-    descr = _PyType_Lookup(tp, attr_name);
-    if (unlikely(!descr)) {
-        return __Pyx_RaiseGenericGetAttributeError(tp, attr_name);
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
     }
-    Py_INCREF(descr);
-    #if PY_MAJOR_VERSION < 3
-    if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS)))
     #endif
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    #if CYTHON_USE_EXC_INFO_STACK
     {
-        descrgetfunc f = Py_TYPE(descr)->tp_descr_get;
-        if (unlikely(f)) {
-            PyObject *res = f(descr, obj, (PyObject *)tp);
-            Py_DECREF(descr);
-            return res;
-        }
+        _PyErr_StackItem *exc_info = tstate->exc_info;
+        tmp_type = exc_info->exc_type;
+        tmp_value = exc_info->exc_value;
+        tmp_tb = exc_info->exc_traceback;
+        exc_info->exc_type = local_type;
+        exc_info->exc_value = local_value;
+        exc_info->exc_traceback = local_tb;
     }
-    return descr;
-}
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
 #endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
+}
 
 /* TypeImport */
 #ifndef __PYX_HAVE_RT_ImportType
@@ -9155,96 +7333,34 @@ static void __Pyx_AddTraceback(const char *funcname, int c_line,
                 func_type zero = 0;\
                 if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
                     return (target_type) -1;\
-                if (is_unsigned && unlikely(value < zero))\
-                    goto raise_neg_overflow;\
-                else\
-                    goto raise_overflow;\
-            }\
-        }\
-        return (target_type) value;\
-    }
-
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value) {
-    const uint32_t neg_one = (uint32_t) ((uint32_t) 0 - (uint32_t) 1), const_zero = (uint32_t) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(uint32_t) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(uint32_t) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(uint32_t) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(uint32_t) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(uint32_t) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(uint32_t),
-                                     little, !is_unsigned);
-    }
-}
-
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value) {
-    const unsigned int neg_one = (unsigned int) ((unsigned int) 0 - (unsigned int) 1), const_zero = (unsigned int) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(unsigned int) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(unsigned int) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(unsigned int) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(unsigned int) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(unsigned int) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(unsigned int),
-                                     little, !is_unsigned);
+                if (is_unsigned && unlikely(value < zero))\
+                    goto raise_neg_overflow;\
+                else\
+                    goto raise_overflow;\
+            }\
+        }\
+        return (target_type) value;\
     }
-}
 
 /* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
-    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_uint32_t(uint32_t value) {
+    const uint32_t neg_one = (uint32_t) ((uint32_t) 0 - (uint32_t) 1), const_zero = (uint32_t) 0;
     const int is_unsigned = neg_one > const_zero;
     if (is_unsigned) {
-        if (sizeof(long) < sizeof(long)) {
+        if (sizeof(uint32_t) < sizeof(long)) {
             return PyInt_FromLong((long) value);
-        } else if (sizeof(long) <= sizeof(unsigned long)) {
+        } else if (sizeof(uint32_t) <= sizeof(unsigned long)) {
             return PyLong_FromUnsignedLong((unsigned long) value);
 #ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+        } else if (sizeof(uint32_t) <= sizeof(unsigned PY_LONG_LONG)) {
             return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
 #endif
         }
     } else {
-        if (sizeof(long) <= sizeof(long)) {
+        if (sizeof(uint32_t) <= sizeof(long)) {
             return PyInt_FromLong((long) value);
 #ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+        } else if (sizeof(uint32_t) <= sizeof(PY_LONG_LONG)) {
             return PyLong_FromLongLong((PY_LONG_LONG) value);
 #endif
         }
@@ -9252,30 +7368,30 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
     {
         int one = 1; int little = (int)*(unsigned char *)&one;
         unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(long),
+        return _PyLong_FromByteArray(bytes, sizeof(uint32_t),
                                      little, !is_unsigned);
     }
 }
 
 /* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
-    const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value) {
+    const unsigned int neg_one = (unsigned int) ((unsigned int) 0 - (unsigned int) 1), const_zero = (unsigned int) 0;
     const int is_unsigned = neg_one > const_zero;
     if (is_unsigned) {
-        if (sizeof(int) < sizeof(long)) {
+        if (sizeof(unsigned int) < sizeof(long)) {
             return PyInt_FromLong((long) value);
-        } else if (sizeof(int) <= sizeof(unsigned long)) {
+        } else if (sizeof(unsigned int) <= sizeof(unsigned long)) {
             return PyLong_FromUnsignedLong((unsigned long) value);
 #ifdef HAVE_LONG_LONG
-        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+        } else if (sizeof(unsigned int) <= sizeof(unsigned PY_LONG_LONG)) {
             return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
 #endif
         }
     } else {
-        if (sizeof(int) <= sizeof(long)) {
+        if (sizeof(unsigned int) <= sizeof(long)) {
             return PyInt_FromLong((long) value);
 #ifdef HAVE_LONG_LONG
-        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+        } else if (sizeof(unsigned int) <= sizeof(PY_LONG_LONG)) {
             return PyLong_FromLongLong((PY_LONG_LONG) value);
 #endif
         }
@@ -9283,7 +7399,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
     {
         int one = 1; int little = (int)*(unsigned char *)&one;
         unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(int),
+        return _PyLong_FromByteArray(bytes, sizeof(unsigned int),
                                      little, !is_unsigned);
     }
 }
@@ -9598,6 +7714,37 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
     #endif
 #endif
 
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
 /* CIntToPy */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value) {
     const enum NPY_TYPES neg_one = (enum NPY_TYPES) ((enum NPY_TYPES) 0 - (enum NPY_TYPES) 1), const_zero = (enum NPY_TYPES) 0;
@@ -9926,39 +8073,228 @@ static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *x) {
                     }
                     break;
                 case 3:
-                    if (8 * sizeof(char) > 2 * PyLong_SHIFT) {
+                    if (8 * sizeof(char) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
+                            return (char) ((((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
+                            return (char) (((char)-1)*(((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(char) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
+                            return (char) ((((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(char) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(char) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            char val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (char) -1;
+        }
+    } else {
+        char val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (char) -1;
+        val = __Pyx_PyInt_As_char(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to char");
+    return (char) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to char");
+    return (char) -1;
+}
+
+/* CIntFromPy */
+static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *x) {
+    const size_t neg_one = (size_t) ((size_t) 0 - (size_t) 1), const_zero = (size_t) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(size_t) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(size_t, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (size_t) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (size_t) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(size_t, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(size_t) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) >= 2 * PyLong_SHIFT) {
+                            return (size_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(size_t) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) >= 3 * PyLong_SHIFT) {
+                            return (size_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(size_t) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) >= 4 * PyLong_SHIFT) {
+                            return (size_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (size_t) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(size_t) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(size_t, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(size_t) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(size_t, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (size_t) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(size_t, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(size_t,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(size_t) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT) {
+                            return (size_t) (((size_t)-1)*(((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(size_t) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT) {
+                            return (size_t) ((((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT) {
+                            return (size_t) (((size_t)-1)*(((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(size_t) > 2 * PyLong_SHIFT) {
                         if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
-                            return (char) ((((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT) {
+                            return (size_t) ((((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
                         }
                     }
                     break;
                 case -4:
-                    if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
+                    if (8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT) {
                         if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
-                            return (char) (((char)-1)*(((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                            __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 4 * PyLong_SHIFT) {
+                            return (size_t) (((size_t)-1)*(((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
                         }
                     }
                     break;
                 case 4:
-                    if (8 * sizeof(char) > 3 * PyLong_SHIFT) {
+                    if (8 * sizeof(size_t) > 3 * PyLong_SHIFT) {
                         if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
-                            return (char) ((((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(size_t) - 1 > 4 * PyLong_SHIFT) {
+                            return (size_t) ((((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
                         }
                     }
                     break;
             }
 #endif
-            if (sizeof(char) <= sizeof(long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(char, long, PyLong_AsLong(x))
+            if (sizeof(size_t) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(size_t, long, PyLong_AsLong(x))
 #ifdef HAVE_LONG_LONG
-            } else if (sizeof(char) <= sizeof(PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(char, PY_LONG_LONG, PyLong_AsLongLong(x))
+            } else if (sizeof(size_t) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(size_t, PY_LONG_LONG, PyLong_AsLongLong(x))
 #endif
             }
         }
@@ -9967,7 +8303,7 @@ static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *x) {
             PyErr_SetString(PyExc_RuntimeError,
                             "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
 #else
-            char val;
+            size_t val;
             PyObject *v = __Pyx_PyNumber_IntOrLong(x);
  #if PY_MAJOR_VERSION < 3
             if (likely(v) && !PyLong_Check(v)) {
@@ -9987,24 +8323,24 @@ static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *x) {
                     return val;
             }
 #endif
-            return (char) -1;
+            return (size_t) -1;
         }
     } else {
-        char val;
+        size_t val;
         PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
-        if (!tmp) return (char) -1;
-        val = __Pyx_PyInt_As_char(tmp);
+        if (!tmp) return (size_t) -1;
+        val = __Pyx_PyInt_As_size_t(tmp);
         Py_DECREF(tmp);
         return val;
     }
 raise_overflow:
     PyErr_SetString(PyExc_OverflowError,
-        "value too large to convert to char");
-    return (char) -1;
+        "value too large to convert to size_t");
+    return (size_t) -1;
 raise_neg_overflow:
     PyErr_SetString(PyExc_OverflowError,
-        "can't convert negative value to char");
-    return (char) -1;
+        "can't convert negative value to size_t");
+    return (size_t) -1;
 }
 
 /* CIntFromPy */
@@ -10196,193 +8532,35 @@ static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
     return (int) -1;
 }
 
-/* CIntFromPy */
-static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *x) {
-    const size_t neg_one = (size_t) ((size_t) 0 - (size_t) 1), const_zero = (size_t) 0;
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
     const int is_unsigned = neg_one > const_zero;
-#if PY_MAJOR_VERSION < 3
-    if (likely(PyInt_Check(x))) {
-        if (sizeof(size_t) < sizeof(long)) {
-            __PYX_VERIFY_RETURN_INT(size_t, long, PyInt_AS_LONG(x))
-        } else {
-            long val = PyInt_AS_LONG(x);
-            if (is_unsigned && unlikely(val < 0)) {
-                goto raise_neg_overflow;
-            }
-            return (size_t) val;
-        }
-    } else
-#endif
-    if (likely(PyLong_Check(x))) {
-        if (is_unsigned) {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (size_t) 0;
-                case  1: __PYX_VERIFY_RETURN_INT(size_t, digit, digits[0])
-                case 2:
-                    if (8 * sizeof(size_t) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(size_t) >= 2 * PyLong_SHIFT) {
-                            return (size_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(size_t) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(size_t) >= 3 * PyLong_SHIFT) {
-                            return (size_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(size_t) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(size_t) >= 4 * PyLong_SHIFT) {
-                            return (size_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-                        }
-                    }
-                    break;
-            }
-#endif
-#if CYTHON_COMPILING_IN_CPYTHON
-            if (unlikely(Py_SIZE(x) < 0)) {
-                goto raise_neg_overflow;
-            }
-#else
-            {
-                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
-                if (unlikely(result < 0))
-                    return (size_t) -1;
-                if (unlikely(result == 1))
-                    goto raise_neg_overflow;
-            }
-#endif
-            if (sizeof(size_t) <= sizeof(unsigned long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(size_t, unsigned long, PyLong_AsUnsignedLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if (sizeof(size_t) <= sizeof(unsigned PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(size_t, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
-#endif
-            }
-        } else {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (size_t) 0;
-                case -1: __PYX_VERIFY_RETURN_INT(size_t, sdigit, (sdigit) (-(sdigit)digits[0]))
-                case  1: __PYX_VERIFY_RETURN_INT(size_t,  digit, +digits[0])
-                case -2:
-                    if (8 * sizeof(size_t) - 1 > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT) {
-                            return (size_t) (((size_t)-1)*(((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
-                        }
-                    }
-                    break;
-                case 2:
-                    if (8 * sizeof(size_t) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT) {
-                            return (size_t) ((((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
-                        }
-                    }
-                    break;
-                case -3:
-                    if (8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT) {
-                            return (size_t) (((size_t)-1)*(((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(size_t) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT) {
-                            return (size_t) ((((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
-                        }
-                    }
-                    break;
-                case -4:
-                    if (8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(size_t) - 1 > 4 * PyLong_SHIFT) {
-                            return (size_t) (((size_t)-1)*(((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(size_t) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(size_t) - 1 > 4 * PyLong_SHIFT) {
-                            return (size_t) ((((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
-                        }
-                    }
-                    break;
-            }
-#endif
-            if (sizeof(size_t) <= sizeof(long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(size_t, long, PyLong_AsLong(x))
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
 #ifdef HAVE_LONG_LONG
-            } else if (sizeof(size_t) <= sizeof(PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(size_t, PY_LONG_LONG, PyLong_AsLongLong(x))
+        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
 #endif
-            }
         }
-        {
-#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
-            PyErr_SetString(PyExc_RuntimeError,
-                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
-#else
-            size_t val;
-            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
- #if PY_MAJOR_VERSION < 3
-            if (likely(v) && !PyLong_Check(v)) {
-                PyObject *tmp = v;
-                v = PyNumber_Long(tmp);
-                Py_DECREF(tmp);
-            }
- #endif
-            if (likely(v)) {
-                int one = 1; int is_little = (int)*(unsigned char *)&one;
-                unsigned char *bytes = (unsigned char *)&val;
-                int ret = _PyLong_AsByteArray((PyLongObject *)v,
-                                              bytes, sizeof(val),
-                                              is_little, !is_unsigned);
-                Py_DECREF(v);
-                if (likely(!ret))
-                    return val;
-            }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
 #endif
-            return (size_t) -1;
         }
-    } else {
-        size_t val;
-        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
-        if (!tmp) return (size_t) -1;
-        val = __Pyx_PyInt_As_size_t(tmp);
-        Py_DECREF(tmp);
-        return val;
     }
-raise_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "value too large to convert to size_t");
-    return (size_t) -1;
-raise_neg_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "can't convert negative value to size_t");
-    return (size_t) -1;
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
 }
 
 /* CIntFromPy */
diff --git a/gensim/models/_utils_any2vec.pyx b/gensim/models/_utils_any2vec.pyx
index 9c5965cd4b..cc4ba9bbb4 100644
--- a/gensim/models/_utils_any2vec.pyx
+++ b/gensim/models/_utils_any2vec.pyx
@@ -97,19 +97,8 @@ cpdef compute_ngrams(word, unsigned int min_n, unsigned int max_n):
 # UTF-8 bytes that begin with 10 are subsequent bytes of a multi-byte sequence,
 # as opposed to a new character.
 #
-_MB_MASK = 0xC0
-_MB_START = 0x80
-
-
-cdef _is_utf8_continue_py3(b):
-    return b & _MB_MASK == _MB_START
-
-
-cdef _is_utf8_continue_py2(b):
-    return ord(b) & _MB_MASK == _MB_START
-
-
-_is_utf8_continue = _is_utf8_continue_py2 if PY2 else _is_utf8_continue_py3
+cdef unsigned char _MB_MASK = 0xC0
+cdef unsigned char _MB_START = 0x80
 
 
 cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
@@ -137,43 +126,19 @@ cpdef compute_ngrams_bytes(word, unsigned int min_n, unsigned int max_n):
 
     """
     cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
-    cdef int num_bytes = len(utf8_word)
-    cdef int j, i, n
-
-    ngrams = []
-    for i in range(num_bytes):
-        if _is_utf8_continue(utf8_word[i]):
-            continue
-
-        j, n = i, 1
-        while j < num_bytes and n <= max_n:
-            j += 1
-            while j < num_bytes and _is_utf8_continue(utf8_word[j]):
-                j += 1
-            if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
-                ngram = bytes(utf8_word[i:j])
-                ngrams.append(ngram)
-            n += 1
-    return ngrams
-
-
-cpdef compute_ngrams_bytes_optimized(word, unsigned int min_n, unsigned int max_n):
-    cdef unsigned char _mb_mask = 0xC0
-    cdef unsigned char _mb_start = 0x80
-    cdef bytes utf8_word = ('<%s>' % word).encode("utf-8")
     cdef const unsigned char *bytez = utf8_word
     cdef size_t num_bytes = len(utf8_word)
     cdef size_t j, i, n
 
     ngrams = []
     for i in range(num_bytes):
-        if bytez[i] & _mb_mask == _mb_start:
+        if bytez[i] & _MB_MASK == _MB_START:
             continue
 
         j, n = i, 1
         while j < num_bytes and n <= max_n:
             j += 1
-            while j < num_bytes and (bytez[j] & _mb_mask) == _mb_start:
+            while j < num_bytes and (bytez[j] & _MB_MASK) == _MB_START:
                 j += 1
             if n >= min_n and not (n == 1 and (i == 0 or j == num_bytes)):
                 ngram = bytes(bytez[i:j])

From 38146bdb2d62a763e6668773c59399ee63009b65 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Thu, 24 Jan 2019 12:44:14 +1100
Subject: [PATCH 31/32] removing temporary benchmarking code

---
 bench.py | 13 -------------
 1 file changed, 13 deletions(-)
 delete mode 100644 bench.py

diff --git a/bench.py b/bench.py
deleted file mode 100644
index dcec83ddb7..0000000000
--- a/bench.py
+++ /dev/null
@@ -1,13 +0,0 @@
-import gensim.downloader as api
-import itertools as it
-from gensim.models.utils_any2vec import compute_ngrams_bytes, ft_hash_bytes
-
-words = tuple(it.chain.from_iterable(api.load("text8")))
-assert len(words) == 17005207  # long enough
-
-words = words[:100000]
-
-
-def benchmark(words=words, ngram_func=compute_ngrams_bytes, hash_func=ft_hash_bytes):
-    for w in words:
-        arr = [hash_func(ngram) % 10000 for ngram in ngram_func(w, 3, 6)]

From 136dc85db3deaf306a8125fc5d835db29a429a10 Mon Sep 17 00:00:00 2001
From: Michael Penkov <misha.penkov@gmail.com>
Date: Thu, 24 Jan 2019 14:12:05 +1100
Subject: [PATCH 32/32] remove wide characters from fb test code

---
 gensim/test/test_data/fb-ngrams.txt | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/gensim/test/test_data/fb-ngrams.txt b/gensim/test/test_data/fb-ngrams.txt
index bb22c620a3..3296d85c6a 100644
--- a/gensim/test/test_data/fb-ngrams.txt
+++ b/gensim/test/test_data/fb-ngrams.txt
@@ -87,17 +87,3 @@ he> -0.046122 -0.071463 0.20759 0.25732 0.23174
 <試し> 0.11952 0.15093 -0.075759 0.18327 0.12471 
 試し> -0.14656 0.072651 -0.16777 0.20026 0.21199 
 <end>
-<start>
-🚑🚒🚓🚕
-🚑🚒🚓🚕 0 0 0 0 0 
-<🚑🚒 -0.065364 0.17951 -0.17059 0.11436 -0.12783 
-<🚑🚒🚓 -0.13712 0.028013 -0.041927 0.11244 0.12261 
-<🚑🚒🚓🚕 0.18643 0.17268 0.024482 0.044628 -0.14716 
-<🚑🚒🚓🚕> -0.17261 0.086891 0.21772 0.10036 0.19114 
-🚑🚒🚓 0.11122 -0.16219 -0.15235 0.21407 0.14858 
-🚑🚒🚓🚕 -0.15504 0.11166 -0.16434 0.089162 -0.16199 
-🚑🚒🚓🚕> -0.13712 0.028013 -0.041927 0.11244 0.12261 
-🚒🚓🚕 -0.20296 -0.11805 0.20277 0.063027 -0.041727 
-🚒🚓🚕> 0.13526 -0.023216 -0.10788 0.24512 -0.022174 
-🚓🚕> -0.1776 0.19906 -0.15572 0.16449 -0.12887 
-<end>