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Author jdemeyer
Recipients jdemeyer, mark.dickinson, rhettinger, serhiy.storchaka, steven.daprano
Date 2019-08-23.19:53:58
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> FWIW, the entire point of us having recently added as_integer_ratio() methods to so many concrete classes is to avoid the need for helper functions in favor of a simple try/except around a single call.

But what about PEP 3141? The fractions.Fraction constructor accepts numbers.Rational instances, which do not necessarily have an as_integer_ratio() method. We can't just drop support for that (*). So in practice you do need to check both as_integer_ratio() and the PEP 3141 numerator/denominator properties. It seems useful to have a helper function for this.

(*) Unless you want to deprecate PEP 3141. This may be less crazy than it sounds, especially given Guido van Rossum's reaction on
Date User Action Args
2019-08-23 19:53:59jdemeyersetrecipients: + jdemeyer, rhettinger, mark.dickinson, steven.daprano, serhiy.storchaka
2019-08-23 19:53:59jdemeyersetmessageid: <>
2019-08-23 19:53:59jdemeyerlinkissue37884 messages
2019-08-23 19:53:58jdemeyercreate