[EMAIL PROTECTED] a écrit : > Thank you for your help that seems to have done the trick. > You are correct Diez B. Roggisch that I come from a java background! > > I have a new tiny problem I can't understand either. > Withing Step.py I have the following method > > def isCompleted(self): > "Check whether data step has been processed" > return self.isCompleted
Java background, indeed !-) In Python, everything (including functions, methods, modules, classes etc) is an object, and methods are just attributes like every others - ie, there's no separate namespaces for methods. So when you set an instance attribute 'isCompleted', it shadows the class attribute by the same name. The obvious solution is to give attributes different names. The perhaps less obvious but much more pythonic solution is to get get rid of the getter if all it does is returning the attribute. I know this sounds strange when coming from Java, but there's no problem doing so - Python has support for computed attributes (aka properties), so you can always replace a plain attribute by a computed one latter if you need to do so, this won't impact the client code. HTH -- http://mail.python.org/mailman/listinfo/python-list
