[Python-Dev] Python3 regret about deleting list.sort(cmp=...)

["Martin v. Löwis"]

> But in Python 3 this solution is no longer available. How bad is that?
> I'm not sure. But I'd like to at least get the issue out in the open.

Rather than reintroducing cmp=, I'd add a cached=True parameter.
If this is set to False, the key results wouldn't be put into a
list, but recreated every time two objects need to be compared.

Regards,
Martin