move version info into VERSION.py

This avoid needing custom spec files for pyinstaller, which doesn't
handle package_data by default

mem_edit/VERSION

@@ -1 +0,0 @@
-0.4

mem_edit/VERSION.py

@@ -0,0 +1,4 @@
+""" VERSION defintion. THIS FILE IS MANUALLY PARSED BY setup.py and REQUIRES A SPECIFIC FORMAT """
+__version__ = '''
+0.4
+'''

mem_edit/__init__.py

@@ -12,16 +12,14 @@ To get started, try:
 
 """
 import platform
-import pathlib
 
 from .utils import MemEditError
 
 
 __author__ = 'Jan Petykiewicz'
 
-with open(pathlib.Path(__file__).parent / 'VERSION', 'r') as f:
-    __version__ = f.read().strip()
-version = __version__
+from .VERSION import __version__
+version = __version__       # legacy compatibility
 
 
 system = platform.system()

setup.py

@@ -5,8 +5,8 @@ from setuptools import setup, find_packages
 with open('README.md', 'r') as f:
     long_description = f.read()
 
-with open('mem_edit/VERSION', 'r') as f:
-    version = f.read().strip()
+with open('mem_edit/VERSION.py', 'rt') as f:
+    version = f.readlines()[2].strip()
 
 setup(name='mem_edit',
       version=version,
@@ -50,7 +50,7 @@ setup(name='mem_edit',
       ],
       packages=find_packages(),
       package_data={
-          'mem_edit': ['VERSION']
+          'mem_edit': []
       },
       install_requires=[
             'typing',