On 10/17/07, David A. Wheeler <[EMAIL PROTECTED]> wrote: > I said: > > I agree with Collin Winter: losing __cmp__ is a loss (see > > http://oakwinter.com/code/). > > Steven Bethard said: > >Why can't this just be supplied with a mixin? Here's a recipe > >providing the appropriate mixins if you want to define a __key__ > >function: > > http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/510403 > > That _works_ from a functional perspective, and if Python3 fails to include > direct support for __cmp__, then I think providing a built-in mixin is > necessary. > > But mixins for comparison are a BIG LOSER for sort performance if your > fundamental operator is a cmp-like function.
However, note that Python's sort() and sorted() are guaranteed to only use '<'. -- --Guido van Rossum (home page: http://www.python.org/~guido/) _______________________________________________ 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
