mercurial/util.py

--- a/mercurial/util.py	Fri Jul 15 23:00:31 2016 +0530
+++ b/mercurial/util.py	Wed Jul 13 23:38:29 2016 +0530
@@ -48,6 +48,7 @@
 for attr in (
     'empty',
     'httplib',
+    'httpserver',
     'pickle',
     'queue',
     'urlerr',