On Wed, Jul 01, 2020 at 01:07:34PM +0200, Dominik Vilsmeier wrote: > What is the reason for `dict.items` to return a set-like object?
This is the third time I've linked to the PEP: https://www.python.org/dev/peps/pep-3106/ More than that, you would have to ask Guido, or the designers of the Java framework that inspired it. > >>> from collections.abc import Set > >>> isinstance({'a': []}.items(), Set) > True > > `dict.items` could provide all of its "standard" behavior (like > membership testing, reversing, etc) without being set-like. Its standard behaviour includes set-like unions and intersections, and has done for over a decade, back to 3.0 and 2.7. -- Steven _______________________________________________ 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/7QMVYNEE2C5TW3A76MI2DRBQIJHB4K5N/ Code of Conduct: http://python.org/psf/codeofconduct/
