diff -r 5b71a8d7f7ff -r 0c741fd6158a contrib/check-code.py
--- a/contrib/check-code.py	Wed Jun 29 19:43:27 2016 -0700
+++ b/contrib/check-code.py	Tue Jun 28 16:01:53 2016 +0530
@@ -330,6 +330,7 @@
     (r'^import xmlrpclib', "don't use xmlrpclib, use util.xmlrpclib"),
     (r'^import cPickle', "don't use cPickle, use util.pickle"),
     (r'^import pickle', "don't use pickle, use util.pickle"),
+    (r'^import httplib', "don't use httplib, use util.httplib"),
     (r'\.next\(\)', "don't use .next(), use next(...)"),
 
     # rules depending on implementation of repquote()