Hey all! I've been trying to achieve this for a few months now, with no success. hopefully someone will be able to shed some light on this one... I have a python product that contains 3 sub-classes. One of these is called "events". In my primary class I have a method "eventValues", which works great to return sub objects, but It also returns sub-objects that are NOT events. ------------------ def eventValues(self): """ return list of sub-objects """ return map(lambda x, p=self: x.__of__(p), self.data.map(self.ids)) ------------------ So, I tried adding in a filter() to remove out the meta_types that I don't want. ------------------ def eventFilterValues(self): """ return list of only events """ rlist = map(lambda x, p=self: x.__of__(p), self.data.map(self.ids)) rlist = filter(lambda x,p=self : p.data[x].meta_type == 'SREventPost', rlist) return rlist ------------------ These calls are not working... I get a TypeError Error Type: TypeError Error Value: Bucket __getitem__ expected integer key Any ideas how to make this work? -ed-