version: use separate file for versioning

setup.py

@@ -2,6 +2,16 @@
 from setuptools import setup
 from setuptools.command.test import test as TestCommand
 
+import os
+import ast
+
+def parse_vesrion():
+    cwd = os.path.dirname(__name__)
+    version_file = os.path.join(cwd, 'amodem', 'version.py')
+
+    tree = ast.parse(open(version_file).read())
+    expr, = tree.body
+    return expr.value.s
 
 class PyTest(TestCommand):
 
@@ -16,7 +26,7 @@ class PyTest(TestCommand):
 
 setup(
     name='amodem',
-    version='1.11',
+    version=parse_vesrion(),
     description='Audio Modem Communication Library',
     author='Roman Zeyde',
     author_email='roman.zeyde@gmail.com',