cmp and sorting non-symmetric types

[Raymond Hettinger]

On Nov 13, 2:54 pm, Paul Rubin <http://phr...@NOSPAM.invalid> wrote:
> Carl Banks <pavlovevide... at gmail.com>
>
> > resurrecting the __cmp__ operator.
>
> I didnd't realize __cmp__ was going.  Are we really supposed to
> implement all the rich comparison methods to code an ordered class?
> Or is there some kind of library superclass we can inherit from that
> implements something like __cmp__?  What about making __key__ ?

IIRC, you need only define __le__ and __eq__ and the rest get defined
using a mixin class.


Raymond