Add missing blank line.

setuptools/package_index.py

@@ -162,6 +162,7 @@ def interpret_distro_name(
             platform = platform
         )
 
+
 # From Python 2.7 docs
 def unique_everseen(iterable, key=None):
     "List unique elements, preserving order. Remember all elements ever seen."

setuptools/unicode_utils.py

@@ -3,6 +3,7 @@ import sys
 
 from setuptools.extern import six
 
+
 # HFS Plus uses decomposed UTF-8
 def decompose(path):
     if isinstance(path, six.text_type):