This works great! Thanks! But I see that there is something else wrong with my plan. When I try to call MyClass.getData(self, ...), I get an error essentially saying that my ZMyClass instance is not an instance of MyClass, so I can't call that method. Python's isinstance tells me that this is the case even though issubclass verifies that ZMyClass is a subclass of MyClass. Is it not possible to wrap regular Python classes with Zope wrappers simply by inheriting from the regular class and a Zope class like Folder/SimpleItem?
Ahh... this is probably due to the fact that one is an ExtensionClass and one is a normal class. Try doing: ZMyClass.inheritedAttribute('getData')() Brian Lloyd brian@zope.com Software Engineer 540.361.1716 Zope Corporation http://www.zope.com