--- a/selectors.py	Tue Feb 17 20:39:09 2009 +0100
+++ b/selectors.py	Tue Feb 17 20:46:43 2009 +0100
@@ -480,6 +480,7 @@
           proximity so the most specific object'll be selected
     """
     def __init__(self, *expected_ifaces):
+        super(implements, self).__init__()
         self.expected_ifaces = expected_ifaces
 
     def score_class(self, eclass, req):