Martin Miller <[EMAIL PROTECTED]> wrote: > You're not missing anything -- it's my own [mis-]understanding that > descriptors would only work with new-style classes, not the old-style > ones used in the OP's example. > > However your example certainly proves that is not the case, even if you > go one step further and call the bound method/function: > >>> o.z() > <__main__.old instance at 0x009D5F30> > > So I stand corrected -- thank you.
You're welcome. Your previous misunderstanding may be due to the fact that (differently from __get__) the special method __set__ doesn't work when the descriptor is held in an old-style class... to be more precise, it's not even given a chance, since assigning to an instance attribute (where the instance's old-style) just blithely sets the value in the instance's __dict__, without even checking for the existence of a descriptor by that name in the class. Alex -- http://mail.python.org/mailman/listinfo/python-list
