From a3d1d1c2c8cccc842ed0f57e4696c127f22ddb5a Mon Sep 17 00:00:00 2001
From: Tianon Gravi <tianon@debian.org>
Date: Mon, 12 Jul 2021 13:26:54 -0700
Subject: [PATCH] Handle pyreadline failure (Windows + Python 3.10+)

Also, axe the explicit pyreadline fallback and dependency (as pyreadline is unmaintained).
---
 NEWS.rst        |  2 ++
 hy/completer.py | 13 +++++++------
 setup.py        |  1 -
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/NEWS.rst b/NEWS.rst
index ae55572c4..8a5910ce3 100644
--- a/NEWS.rst
+++ b/NEWS.rst
@@ -9,10 +9,12 @@ Other Breaking Changes
   `(import [foo [bar]])` is now `(import foo [bar])`
   and `(import [foo :as baz])` is now `(import foo :as baz)`.
   To import all names from a module, use `(import foo *)`.
+* Dropped support for `pyreadline`
 
 Bug Fixes
 ------------------------------
 * Improved error messages for illegal uses of `finally` and `else`.
+* Fixed a crash on Windows due to Readline
 
 1.0a3 (released 2021-07-09)
 ==============================
diff --git a/hy/completer.py b/hy/completer.py
index 1d6ee1e21..bc3e6d739 100644
--- a/hy/completer.py
+++ b/hy/completer.py
@@ -16,13 +16,14 @@
 
 try:
     import readline
-except ImportError:
-    try:
-        import pyreadline.rlmain
-        import pyreadline.unicode_helper  # NOQA
-        import readline
-    except ImportError:
+except AttributeError as e:
+    # https://github.com/pyreadline/pyreadline/issues/65
+    if "module 'collections' has no attribute 'Callable'" in str(e):
         docomplete = False
+    else:
+        raise
+except ImportError:
+    docomplete = False
 
 if docomplete:
     if sys.platform == 'darwin' and 'libedit' in readline.__doc__:
diff --git a/setup.py b/setup.py
index 54e02a16c..0cca724c0 100755
--- a/setup.py
+++ b/setup.py
@@ -69,7 +69,6 @@ def run(self):
         'funcparserlib>=0.3.6',
         'colorama',
         'astor>=0.8 ; python_version < "3.9"',
-        'pyreadline>=2.1 ; os_name == "nt"',
     ],
     cmdclass=dict(install=Install),
     entry_points={