Wesley Brooks wrote: > I'm having real difficulty understanding why the following is not > working and hoped I've either missed something obvious of I'm doing > something wrong! > > class A: > def break_down(self, value, base, broken_list=[]):
> I'm a little stumped as I don't think I'm using any global or class > variables? Any help would be much appreciated. You are on the right track, the default value for broken_list is evaluated only once; Modifications during an invocation of the break_down() method are visible when break_down() is called again later. See also http://docs.python.org/faq/design.html#why-are-default-values-shared-between-objects Peter _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor