[issue29882] Add an efficient popcount method for integers

[Mark Dickinson]

Mark Dickinson <dickinsm at gmail.com> added the comment:

I'm re-reviewing this discussion three years on. I'd be happy for this to go into 3.10. Are there other strong opinions? It would be good to either update and merge the PR, or close as rejected.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue29882>
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