On Fri, Nov 14, 2008 at 6:38 PM, Joe Strout <joe at strout.net> wrote: > On Nov 14, 2008, at 4:33 PM, Jerry Hill wrote: > >> Then add >> def __init__(self): >> a = 0 >> b = 0 > > Doesn't that have to be "self.a" and "self.b"? Yes, that should indeed have been self.a and self.b! Sorry about that. -- Jerry