--- a/mercurial/namespaces.py	Mon Dec 15 14:09:00 2014 -0800
+++ b/mercurial/namespaces.py	Mon Dec 22 09:07:37 2014 -0800
@@ -49,6 +49,12 @@
         """returns the namespace object"""
         return self._names[namespace]
 
+    def __iter__(self):
+        return self._names.__iter__()
+
+    def iteritems(self):
+        return self._names.iteritems()
+
     def addnamespace(self, namespace, order=None):
         """register a namespace