> > single instance (or indeed no instances because you could > > use a static method... or get really fancy and create a > > meta-class!). > > or make it a static method of Building
Yes that's actually what I meant, but reading it back it sounds like I meant static Factory method.... Ho hum. > or get really simple and use a module-level function... Yeah., but I did say if he wanted to be OOPish. > > class Shack(Building): > > def __init__(self,p1,p2...): > > Building.__init__(self,...) > > Building.register(self,'Shack', Shack) > > ...rest of init... > > I think you want to register Shack before you ever create one. Yeah, you are right. My way you register it every time you create an instance. A single registration call right after the class definition is probably better. > or you could probably get tricky and do it in a metaclass... I would do in Smalltalk but meta classes in Python are somewhere that I haven't visited yet! :-) Alan G. _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor