From: Robert Dober Date: 2010-06-05T05:22:55+09:00 Subject: Re: class variables and modules On Fri, Jun 4, 2010 at 7:26 PM, Ill Everbe wrote: Short answer: Do not use class variables, period! Because they are shared amongst subclasses. Long answer: Ok that's exactly what you want.... include Keeper into A and leave the subclasses alone ;) -- The best way to predict the future is to invent it. --Alan Kay