Make setup.py file reads Python3 compatible

setup.py

@@ -7,9 +7,17 @@
 description = 'Make Django requests aware of the DNT header'
 
 
+def read_file(path):
+    contents = open('README.rst').read()
+    if hasattr(contents, 'decode'):
+        return contents.decode('utf8')  # Python2 bytes to unicode
+    else:
+        return contents  # Python3 reads unicode
+
+
 def long_description():
     """Create a PyPI long description from docs."""
-    readme = open('README.rst').read().decode('utf8')
+    readme = read_file('README.rst')
     body_tag = ".. Omit badges from docs"
     try:
         readme_body_start = readme.index(body_tag)
@@ -30,7 +38,7 @@ def long_description():
         }
 
     try:
-        history = open('HISTORY.rst').read().decode('utf8')
+        history = read_file('HISTORY.rst')
     except IOError:
         history = ''
 
@@ -47,7 +55,7 @@ def long_description():
 
 setup(
     name='django-dnt',
-    version='0.1.0',
+    version='0.2.0',
     description=description + '.',
     long_description=long_description(),
     author='James Socol',