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Re: Guido rethinking removal of cmp from sort method

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  Re: Guido rethinking removal of cmp from sort method Ian Kelly <ian.g.kelly@gmail.com> - 2011-03-29 17:36 -0600
    Re: Guido rethinking removal of cmp from sort method Paul Rubin <no.email@nospam.invalid> - 2011-03-29 17:23 -0700

#2199 — Re: Guido rethinking removal of cmp from sort method

On Tue, Mar 29, 2011 at 5:06 PM, MRAB <python@mrabarnett.plus.com> wrote:
> I think I've found a solution:
>
>    class NegStr:
>        def __init__(self, value):
>            self._value = value
>        def __lt__(self, other):
>            return self._value > other._value

IOW:

cmp_to_key(lambda x, y: -cmp(x, y))

This is still just taking a cmp function and dressing it up as a key.

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#2201

Ian Kelly <ian.g.kelly@gmail.com> writes:
> cmp_to_key(lambda x, y: -cmp(x, y))

cmp_to_key(lambda x, y: cmp(y, x))

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