[Python-3000] Total ordering and __cmp__

[Collin Winter]

On 3/20/07, Guido van Rossum <guido at python.org> wrote:
> I haven't taken any action, and it looks like __cmp__ isn't being
> called. I'd rather not add it back; if you want it back, could you at
> least write up a brief PEP? A patch would also help; I recall that it
> was quite a relief being able to cut it out, so I expect that patching
> it back in would be quite cumbersome.

I'm not wild about the idea of reintroducing it. I'd at least like
some kind of transition strategy that 2to3 can help with (if not
implement entirely). Perhaps something like, "if a class defines a
__cmp__ method but not __lt__, __gt__, __ge__, etc, 2to3 will insert
those methods, implemented by wrapping calls to cmp() as appropriate".

Collin Winter