> I'm mildly concerned about giving extension opcodes specifically to > "Zope 3". Is there some reason we shouldn't just make that "Zope"? I doubt that Zope 2 will ever be using pickle protocol 2. Anyway, the class names are all different, so Zope 2 and Zope 3 would require different extension ranges. --Guido van Rossum (home page: http://www.python.org/~guido/)