diff --git a/setup.py b/setup.py
index 0cdbdefe4..a2a4fd9e9 100755
--- a/setup.py
+++ b/setup.py
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
+import codecs
 import os
 import re
-import codecs
 
 from setuptools import setup
 
 
 def read_file(filename, encoding='utf8'):
-    """read unicode from given file"""
+    """Read unicode from given file."""
     with codecs.open(filename, encoding=encoding) as fd:
         return fd.read()