Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/papyon/client.py", line 446, in event
    self._dispatch(method_name, *event_args)
  File "/usr/lib/pymodules/python2.6/papyon/event/__init__.py", line 44, in _dispatch
    if event_handler._dispatch_event(name, *args):
  File "/usr/lib/pymodules/python2.6/papyon/event/__init__.py", line 65, in _dispatch_event
    handler(*params)
  File "/usr/lib/python2.6/dist-packages/butterfly/capabilities.py", line 63, in on_addressbook_contact_added
    if contact.is_member(contact.Membership.FORWARD):
AttributeError: 'Contact' object has no attribute 'Membership'