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/
