v1.1.0 Support python 3.7, 3,8

Makefile

@@ -3,8 +3,9 @@ SHELL := /bin/bash
 
 MOD_NAME := protected_class
 PYX_SOURCE := src/cython/${MOD_NAME}.pyx
-C_SOURCE := src/c/${MOD_NAME}.c
-CYTHON_PROG := $(shell which cython3 2>/dev/null || which cython 2>/dev/null)
+C_SOURCE_2 := src/c/2/${MOD_NAME}.c
+C_SOURCE_3 := src/c/3/${MOD_NAME}.c
+CYTHON_PROG := $(shell which cython 2>/dev/null || which cython3 2>/dev/null || which cython 2>/dev/null)
 LS_CMD := ls -g --time-style="+%Y-%m-%d %H:%M:%S"
 RUN_TEST_FILE := tests/run_tests.sh
 
@@ -17,10 +18,16 @@ help:    ## Show this help
 
 # ---------- Combined targets --------------------------------------------
 
-${C_SOURCE}: ${PYX_SOURCE}
+${C_SOURCE_2}: ${PYX_SOURCE}
 	@echo Building C source using ${CYTHON_PROG}
-	${CYTHON_PROG} ${PYX_SOURCE} -o ${C_SOURCE} 1>/dev/null
-	${LS_CMD} ${C_SOURCE}
+	${CYTHON_PROG} -2 ${PYX_SOURCE} -o ${C_SOURCE_2} 1>/dev/null
+	${LS_CMD} ${C_SOURCE_2}
+	@echo ""
+
+${C_SOURCE_3}: ${PYX_SOURCE}
+	@echo Building C source using ${CYTHON_PROG}
+	${CYTHON_PROG} -3 ${PYX_SOURCE} -o ${C_SOURCE_3} 1>/dev/null
+	${LS_CMD} ${C_SOURCE_3}
 	@echo ""
 
 module: py3 py2    ## (PY2 and PY3) Build modules
@@ -36,7 +43,7 @@ clean:    ## (PY2 and PY3) Remove built modules
 
 # ---------- Python 3 targets --------------------------------------------
 
-protected_class.cpython-3*.so: ${C_SOURCE}
+protected_class.cpython-3*.so: ${C_SOURCE_3}
 	@echo Building Python 3 extension module
 	python3 setup.py build_ext --inplace 1>/dev/null && rm -rf build
 	${LS_CMD} protected_class.cpython-3*.so
@@ -55,7 +62,7 @@ vtest3: py3       ## PY3 Build and test module (VERBOSE)
 
 # ---------- Python 2 targets --------------------------------------------
 
-protected_class.so: ${C_SOURCE}
+protected_class.so: ${C_SOURCE_2}
 	@echo Building Python 2 extension module
 	python2 setup.py build_ext --inplace 1>/dev/null && rm -rf build
 	${LS_CMD} protected_class.so

README.md

@@ -7,12 +7,17 @@
 - Does not leave a back door like:
     - Attributes still accessible using ```object.__getattribute__(myobj, atribute)```
     - Looking at python stack frame
-- Tested on Python 2.7.17 and python 3.6.9
+- Tested on Python 2.7.17 and python 3.6.9, 3.7.5, 3.8.0
 - Should work on any Python 3 version
 - Well documented (docstring)
 - doctests in tests directory
 - Tested (only) on Ubuntu Bionic 18.04. Should work on any Linux distribution
 - Should work wherever cython works
+- If you want to CHANGE the source and recompile protected_class.c, and you want it
+  to work with Python 3.7+, you need to install cython version >= 0.27.3
+  Do this with
+  ```sudo pip3 install --upgrade cython>=0.27.3```
+- This README.md is not completely up to date. Use ```pydoc protected_class``` for the most up-to-date documentation
 
 
 ### Usage

setup.py

@@ -1,4 +1,5 @@
 import sys
+import os
 from setuptools import Extension
 from setuptools import setup
 
@@ -12,7 +13,7 @@
 )
 module_dir = name + '_src-' + pyver
 
-version = '1.0.2'
+version = '1.1.0'
 description = 'Protect class attributes in any python object instance'
 long_description = open('README.md', 'r').read()
 long_description_content_type = 'text/markdown'
@@ -45,9 +46,14 @@
 }
 
 
+if sys.version_info.major < 3:
+    src = 'src/c/2/' + name + '.c'
+else:
+    src = 'src/c/3/' + name + '.c'
+
 data_files = [
     (module_dir, [
-        'src/c/' + name + '.c',
+        src,
         'src/cython/' + name + '.pyx',
         'tests/__init__.py',
         'tests/test_protected_class.py',
@@ -58,7 +64,6 @@
 language = 'c'
 include_dirs = []
 
-src = 'src/c/' + name + '.c'
 extensions = [
     Extension(
         name=name,