Michele Simionato wrote:
OTOH, for what concerns multiple inheritance, I am still not convinced it is really worth it. I mean, the MRO is beautiful, elegant and all that on paper, but on real-life code things as different, especially from the side of the users of frameworks heavily based on inheritance.
The mixin methods in the ABC machinery would be a lot less useful without multiple inheritance (and the collections ABCs would be a whole lot harder to define and to write). So if you're looking for use cases for multiple inheritance, I'd suggest starting with the Python 2.6 collections module and seeing how you would go about rewriting it using only single inheritance. I believe the new io module is also fairly dependent on multiple inheritance. Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia --------------------------------------------------------------- http://www.boredomandlaziness.org