On 11/22/06, Jonathan LaCour <[EMAIL PROTECTED]> wrote: > Phillip J. Eby wrote: > > > In essence, interfaces turn libraries into "frameworks", but generic > > functions turn frameworks into libraries. I didn't really discover > > this until January of last year, though, when I did some experiments > > in replacing various PEAK interfaces with generic functions. > > This is easily the most important part of the conversation, IMO, and I > would hate for it to be missed. "Interfaces" in the Java universe are a > hard contract that everyone has to agree upon up-front, and if you don't > agree, you have to create your own framework that does the very same > things in a different way. What you end up with is a world of many > competing frameworks, none of which interoperate. > > The alternative may not be as *familiar* but it certainly paints a much > brighter picture. If you have two different frameworks that take > slightly different approaches (or even _radically_ different approaches) > to the same problems, you can make them work together as one, rather > than having to pick one or the other. Its like framework detente! > > Adopting Java-like interfaces just because they are "familiar" would be > a huge mistake, as it would condemn Python to the limitations of such an > implementation unnecessarily. This is Python 3000, not Java, and while I > certainly understand the argument of familiarity, I won't let something > that seems a tad magical at first scare me into a comfortable decision. > > I have actually used generic functions (using RuleDispatch) in practice > and find them to not only be hugely powerful, but much more pragmatic. > Am I the only one out there who sees it this way?
Sorry, but that was about as informative as a "+1" vote. -- --Guido van Rossum (home page: http://www.python.org/~guido/) _______________________________________________ Python-3000 mailing list [email protected] http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
