On 5/17/07, Guido van Rossum <[EMAIL PROTECTED]> wrote: > On 5/17/07, Collin Winter <[EMAIL PROTECTED]> wrote: > > ABCs can define concrete methods. These concrete methods provide > > functionality that the child classes do not themselves provide. > > You seem to be misreading my intention here. ABCs serve two purposes: > they are interface specifications, and they provide "default" or > "mix-in" implementations of some of the methods they specify. The > pseudo-inheritance enabled by the register() call uses only the > specification part, and requires that the registered class implement > all the specified methods itself. In order to benefit from the > "mix-in" side of the ABC, you must subclass it directly.
I think I'm getting confused between the PEP and what you've said at one of the various whiteboard sessions. _______________________________________________ Python-3000 mailing list Python-3000@python.org http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
