hi, can somebody give me a hint what the parameter '_marker' is meant for in this code of the zope object manager - def _getOb(self, id, default=_marker): # FIXME: what we really need to do here is ensure that only # sub-items are returned. That could have a measurable hit # on performance as things are currently implemented, so for # the moment we just make sure not to expose private attrs. if id[:1] != '_' and hasattr(aq_base(self), id): return getattr(self, id) if default is _marker: raise AttributeError, id return default _marker ist declared as an empty list at the beginning of the module, but outside of the object manager class ... and as i believe has something to do with the path to (container of) the object ??? thx for any hints steindl friedrich (-:fs)