"not in" is faster than "has_key".

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@21169 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/patches/CMFCoreSkinnable.py

@@ -69,7 +69,7 @@ def CMFCoreSkinnableSkinnableObjectManager___getattr__(self, name):
       try:
         return resolve[name]
       except KeyError:
-        if not ignore.has_key(name):
+        if name not in ignore:
           try:
             portal_skins = aq_base(self.portal_skins)
           except AttributeError: