[Zope] create ZClass instances in Python scripts

Hi, Is it possible to create programmatically ZClass instances from Python scripts? I haven't been able to do it. I have the next thing in my Python script: folder.manage_addProduct['MyProduct'].manage_addMyZClass_py(myId) And then I have a Python Script called "manage_addMyZClass_py" in "MyProduct" that does simply this: container.MyZClass.createInObjectManager(id) All this gives me the next message: Error Type: TypeError Error Value: not enough arguments; expected 3,got 2 This happens when calling createInObjectManager(), because it expects a REQUEST object, but I don't have one! It won't accept a None REQUEST object either. Any hint? Cheers, Arkaitz.