On Thu, Apr 21, 2011 at 1:21 PM, Alex Companioni <achom...@gmail.com> wrote: > In the following class definition: > > class Tomato(list): > def __init__(self, data): > list.__init__(self, data) > > The list.__init__ method (if it is a method, I'm not clear on what > __init__ actually *is*) creates a list, right? In other words, > > l = Tomato([1,2,3]) > > will create a list l with the values [1,2,3], correct?
What you actually want is this: >>> class Tomato(list): ... def __init__(self, data): ... super(Tomato, self).__init__(data) ... >>> l = Tomato([1, 2, 3]) >>> l [1, 2, 3] >>> Your example: >>> class Tomato(list): ... def __init__(self, data): ... list.__init__(data) ... >>> l = Tomato([1, 2, 3]) >>> l [] >>> Do you see why ? cheers James -- -- James Mills -- -- "Problems are solved by method" _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
