On Thu, Oct 28, 2021 at 3:04 AM Steven D'Aprano > The "in" operator is built on iteration, but can be overridden by the > `__contains__` method.
I would say it is built on __contains__, but will fall back on iteration :-) Effectively the same, but conceptually a bit different. There is also the expectation that the two methods provide the same results, as with dicts. -CHB -- Christopher Barker, PhD (Chris) Python Language Consulting - Teaching - Scientific Software Development - Desktop GUI and Web Development - wxPython, numpy, scipy, Cython
_______________________________________________ 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/YGUFRBEF4HVN2SMYB7YS7KKPEHYUST7B/ Code of Conduct: http://python.org/psf/codeofconduct/
