Oh, if I'm going to be a smart-ass, I should probably remember that I need a `not` in there. No need to correct me, I saw it as soon as pressing send.
Nonetheless, this is an unnecessary method or function. Truthiness is non-emptiness for most purposes. And where it's not, you need something more specialized to the purpose at hand. On Tue, Aug 24, 2021, 6:14 PM David Mertz, Ph.D. <david.me...@gmail.com> wrote: > This is easy enough to put in your own toolkit: > > >>> is_empty = bool > > All done! > > On Tue, Aug 24, 2021, 6:04 PM Tim Hoffmann via Python-ideas < > python-ideas@python.org> wrote: > >> I also have the feeling that this is going round in circles. So let me >> get back to the core question: >> >> **How do you check if a container is empty?** >> >> IMHO the answer should not depend on the container. While emptiness may >> mean different things for different types. The check syntax can and should >> still be uniform. >> >> Not a solution: >> 0) The current `if not seq` syntax. "check Falsiness instead of >> emptiness" is a simplification, which is not always possible. >> >> Possible solutions: >> 1) Always use `if len(seq) == 0`. I think, this would works. But would we >> want to write that in PEP-8 instead of `if not seq`? To me, this feels a >> bit too low level. >> 2) A protocol would formalize that concept by building respective syntax >> into the language. But I concede that it may be overkill. >> 3) The simple solution would be to add `is_empty()` methods to all stdlib >> containers and encourage third party libs to adopt that convention as well. >> That would give a uniform syntax by convention. >> >> Reflecting the discussion in this thread, I now favor variant 3). >> >> Tim >> _______________________________________________ >> Python-ideas mailing list -- python-ideas@python.org >> To unsubscribe send an email to python-ideas-le...@python.org >> https://mail.python.org/mailman3/lists/python-ideas.python.org/ >> Message archived at >> https://mail.python.org/archives/list/python-ideas@python.org/message/RNI2JYDY44LDV7LAGNAFT7IJD5CJT2GX/ >> Code of Conduct: http://python.org/psf/codeofconduct/ >> >
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