added an encoding set. Lack thereof was causing setup.py to fail sometimes. https://www.python.org/dev/peps/pep-0263/
diff --git a/setup.py b/setup.py
index 75b2fe7..bd14b21 100755
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-#
+# -*- coding: utf-8 -*-
 #  Copyright 2011 Sybren A. Stüvel <sybren@stuvel.eu>
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");