Thomas Girod wrote: > Or maybe I'm mixing up what we call a "classmethod" with what we could > call an "instance method" ? > That's what I was about to point out !-)
> class Data(list): > __slots__ = ["width", "height", "label"] > > def __init__(self,width,height,label=None): > list.__init__(self) > self.width = width > self.height = height > self.label = label > > def clear(cls): > while len(cls) > 0: del cls[0] > return > clear = classmethod(clear) What about this ? def clear(self): del self[:] As it's name (and signature) implies, a classmethod works on a class, not on an instance of the class. Here, you are trying to compute the length of *class* Data. -- bruno desthuilliers python -c "print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for p in '[EMAIL PROTECTED]'.split('@')])" -- http://mail.python.org/mailman/listinfo/python-list