[issue42452] FIX Optimize 'rgb_to_hls'

[Terry J. Reedy]

Terry J. Reedy <tjreedy at udel.edu> added the comment:


New changeset f9195318a863e237f41ed7665c767028cde1c9a3 by Julien Jerphanion in branch 'master':
bpo-42452: Improve colorsys.rgb_to_hls code (GH-23306)
https://github.com/python/cpython/commit/f9195318a863e237f41ed7665c767028cde1c9a3


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nosy: +terry.reedy

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