I tried that and super(B,self), but neither works. Using super(A,self) in the _getv(self) method doesn't work, since the super() of A is "object" and that doesn't have the v property at all. Not sure why you say that using self.__class__ is wrong as the first argument to super(), it should be the same as using the class name itself - both will result in <class blah.B> or whetever self is an instance of.
I still don't see a way to accomplish my original goal, but any other suggestions you might have would be appreciated. Thanks, -David Mike Meyer wrote: >David Hirschfield <[EMAIL PROTECTED]> writes: > > >>I'm having trouble with the new descriptor-based mechanisms like >>super() and property() stemming, most likely, from my lack of >>knowledge about how they work. >> >>Here's an example that's giving me trouble, I know it won't work, but >>it illustrates what I want to do: >> >>class A(object): >> _v = [1,2,3] >> def _getv(self): >> if self.__class__ == A: >> return self._v >> return super(self.__class__,self).v + self._v >> >> v = property(_getv) >> >> >>class B(A): >> _v = [4,5,6] >> b = B() >>print b.v >> >>What I want is for b.v to give me back [1,2,3,4,5,6], but this example >>gets into a recursive infinite loop, since super(B,self).v is still >>B._getv(), not A._getv(). >> >>Is there a way to get what I'm after using super()? >> >> > >Yes. Call super with A as the first argument, not self.__class__. > >That's twice in the last little bit I've seen someone incorrectly use >self.__class__ instead of using the class name. Is there bogus >documentation somewhere that's recommending this? > > <mike > > -- Presenting: mediocre nebula. -- http://mail.python.org/mailman/listinfo/python-list
