Index: src/org/python/core/PyDictionary.java
===================================================================
--- src/org/python/core/PyDictionary.java	(revision 3454)
+++ src/org/python/core/PyDictionary.java	(working copy)
@@ -899,8 +899,12 @@
         return table.containsKey(key);
     }
 
+    public boolean __contains__(PyObject o) {
+        return dict___contains__(o);
+    }
+
     final boolean dict___contains__(PyObject o) {
-        return dict_has_key(o);
+        return has_key(o);
     }
 
     /**