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gh-86618 assumed a-b-c = a-(b+c) = a-d where d = b+d. For floats 2.0, 1.0, and 0.9999999999999999, this assumption is false. The net change of 1.1102230246251565e-16 to 0.0 results in division by 0. Revert the replacement. Add test.
2 lines
136 B
ReStructuredText
2 lines
136 B
ReStructuredText
Revert a change to :func:`colorsys.rgb_to_hls` that caused division by zero
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for certain almost-white inputs. Patch by Terry Jan Reedy.
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