Author mark.dickinson
Recipients John.Yeung, facundobatista, mark.dickinson, rhettinger, serhiy.storchaka, terry.reedy
Date 2018-03-19.08:39:03
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Message-id <1521448744.11.0.467229070634.issue33083@psf.upfronthosting.co.za>
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Raymond: what are your thoughts on deprecating the ability of `math.factorial` to accept a float (as in `math.factorial(5.0)` -> `120`)?

For me, I'm not sure I see the value of the deprecation. It's the usual story: the answer to "Knowing what we know now, should we have done this differently in the first place" is "Probably, yes". But "Should we change the current behaviour" is a very different question. I'm tempted to see the acceptance of integral floats as a harmless quirk, and the deprecation of that behaviour as a case of gratuitous breakage.
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2018-03-19 08:39:04mark.dickinsonsetrecipients: + mark.dickinson, rhettinger, terry.reedy, facundobatista, serhiy.storchaka, John.Yeung
2018-03-19 08:39:04mark.dickinsonsetmessageid: <1521448744.11.0.467229070634.issue33083@psf.upfronthosting.co.za>
2018-03-19 08:39:04mark.dickinsonlinkissue33083 messages
2018-03-19 08:39:03mark.dickinsoncreate