hello I think that the LocalFS Product might have a problem with python 2.2.2. In my environment, zope object at the local file's URL has an empty docstring, so that the site error occur. I found that _getWrapper() function in LocalFS/LocalFS.py at line 294 return the object, and the class ObjectWrapper in the function define the class, with empty docstring {__doc__ : None}. It may need to have no '__doc__' in it's dict, in order to inherit base class docstring. The ExtensionClass migth be working different way to define the class. I dont't know whether the issue is owing to the ExtensionClass or the LocalFS. for example: ---------------------------------- from ExtensionClass import Base class MyClass(Base): """this is MyClass""" def __class_init__(self): """class intializer""" class Wrapper: """this is Wrapper""" def getWrapper(): class ObjectWrapper(Wrapper, MyClass): pass return ObjectWrapper if __name__ == '__main__': w = getWrapper() print 'docstring: ', w.__doc__ ---------------------------------- This script will display "docstring: this is Wrapper" with python 2.1.3, but with python 2.2.2 will display "docstring: None" Then, I wrote this patch for LocalFS/LocalFS.py: ---------------------------------- 294 class ObjectWrapper(Wrapper, c): pass + if ObjectWrapper.__dict__.has_key('__doc__'): + del ObjectWrapper.__dict__['__doc__'] ---------------------------------- Is it correct? environments: 1) zope 2.6.1, python 2.1.3, gcc 2.95.3, and linux kernel 2.4.18. 2) zope 2.6.1, python 2.2.2, gcc 3.2.2, and linux kernel 2.4.20. thanks! -- Shu Konno (owa)