use codecs.open for enhanced Python2 compatibility

beniwohli · beniwohli · commit 460bf2e64c0a · 2016-06-07T11:04:12.000+02:00
diff --git a/setup.py b/setup.py
@@ -22,6 +22,7 @@
 
 import sys
 import os
+from codecs import open
 
 from setuptools import setup, find_packages, Extension
 from opbeat.version import VERSION
