[Zope] Python clss - based ZClass

Python clss - based ZClass I'm trying to make in Zope Python clss - based ZClass. But my pyhon-class has constructor with parametor( def __init__(self,par)). Okey. ZClass is ready and i want to create its object But when i'm trying to create it Zope says that parametor... How must i give the parametor when i'm trying to create this object sorry for my english thanks