Bug report

Bug description:

Theimplementation ofstatistics.geometric_mean using logarithms requires that all input values must be positive. However, a real geometric mean is defined for all sets ofnon-negative real values. The geo mean of any set of numbers containing zero is itself zero.

fromstatisticsimportgeometric_meangeometric_mean([1.0,2.0,0.0])Traceback (mostrecentcalllast):File"<stdin>",line1,in<module>File"/home/milthorpe/miniconda3/lib/python3.11/statistics.py",line489,ingeometric_meanraiseStatisticsError('geometric mean requires a non-empty dataset 'statistics.StatisticsError:geometricmeanrequiresanon-emptydatasetcontainingpositivenumbers

I believegeometric_mean should return 0 if any of the input values are zero. (It should continue to return aStatisticsError if any of the input values are negative.)

CPython versions tested on:

3.11

Operating systems tested on:

Linux

Linked PRs

• gh-112540: Support zero inputs in geometric_mean() #112880