On Mon, Sep 28, 2020 at 6:34 AM Samuel Freilich via Python-ideas < python-ideas@python.org> wrote:
> The message does not include: > > * The word "hashable" verbatim, which appears in the glossary > * A link to https://docs.python.org/3/glossary.html#term-hashable > That's a pretty good entry that does talk about the importance of hashability in dicts and sets. So making it easier to find might be enough to help here. So +1 on adding that link to the error message (if, in fact, links in error messages are on the table at all -- do any existing built in error message have links in them? and/or at least add "unhashable" to the glossary -- after all, both "mutable" and "immutable" are in there. -CHB > * A suggestion of what to do instead > > For example: > TypeError: dict keys must be hashable ( > https://docs.python.org/glossary.html#term-hashable), 'list' is not. > Consider using a primitive type (e.g. int, str) or immutable sequence (e.g. > tuple, frozenset). > > (That could be too much stuff, my point is I think there's room for > improvement over "unhashable type: 'list'".) > > I filed a bug about this (https://bugs.python.org/issue41114), but it was > closed by a core contributor, who suggested discussing that on this list > instead. While it's true that you can Google the error message and find the > relevant information, I think the error message text would be worth > improving. > > Peace, > -Sam > _______________________________________________ > 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/B6OMGYIM47OVGOCZLEY3MEUJDFURJRDV/ > Code of Conduct: http://python.org/psf/codeofconduct/ > -- Christopher Barker, PhD 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/NNYGJBU7QOCKWOU3LLQPOG4CKGETTGSO/ Code of Conduct: http://python.org/psf/codeofconduct/
