--- a/python/diffex.py	Fri Oct 28 17:01:54 2016 -0700
+++ b/python/diffex.py	Fri Oct 28 17:05:35 2016 -0700
@@ -2,9 +2,11 @@
 # -*- coding: utf-8 -*-
 
 """
-diff before v after of executables (requires http://k0s.org/hg/config/file/f71f6ffa731a/python/lsex.py)
+diff before v after of executables
+(requires http://k0s.org/hg/config/file/f71f6ffa731a/python/lsex.py)
 """
 
+# improts
 import difflib
 import lsex
 import optparse
@@ -13,12 +15,14 @@
 import sys
 import tempfile
 
+
 def add_options(parser):
     """add options to the OptionParser instance"""
 
+
 def main(args=sys.argv[1:]):
 
-    # parse command line options
+    # parse command line
     usage = '%prog [options] ...'
     class PlainDescriptionFormatter(optparse.IndentedHelpFormatter):
         """description formatter for console script entry point"""
@@ -27,10 +31,12 @@
                 return description.strip() + '\n'
             else:
                 return ''
-    parser = optparse.OptionParser(usage=usage, description=__doc__, formatter=PlainDescriptionFormatter())
+    parser = optparse.OptionParser(usage=usage,
+                                   description=__doc__,
+                                   formatter=PlainDescriptionFormatter())
     options, args = parser.parse_args(args)
 
-    # get difference
+    # get difference in executables
     before = lsex.executable_names() # get executables before
     raw_input("Press [Enter] to continue")
     after = lsex.executable_names()  # get executables after
@@ -48,7 +54,8 @@
     for display_name, var in display:
         if var:
             print '%s:' % display_name
-            print '\n'.join(var)
+            print ('\n'.join(var))
+
 
 if __name__ == '__main__':
   main()