Updates for PEP8.

varnish.py

@@ -1,4 +1,5 @@
 #!/usr/bin/python 
+"""Script to create a ACL file for inclusion within Varnish."""
 
 import blocklist
 import sys
@@ -12,12 +13,16 @@ class VarnishBlockList(blocklist.BlockList):
             print "\t\"%s\";" % address
         print "}"
 
-if __name__ == "__main__":
+def main():
-    blocklist = VarnishBlockList()
+    """Main program loop."""
+    block_list = VarnishBlockList()
 
-    blocklist.read("http://server1.example.com/default/blocks.txt")
+    block_list.read("http://server1.example.com/default/blocks.txt")
-    blocklist.read("http://server2.example.com/default/blocks.txt")
+    block_list.read("http://server2.example.com/default/blocks.txt")
 
-    blocklist.export()
+    block_list.export()
 
     sys.exit(0)
+
+if __name__ == "__main__":
+    main()