On Wed, 24 Jun 2020 12:38:52 -0700 Guido van Rossum <gu...@python.org> wrote: > Everyone, > > If you've commented and you're worried you haven't been heard, please add > your issue *concisely* to this new thread. Note that the following issues > are already open and will be responded to separately; please don't bother > commenting on these until we've done so: > > - Alternative spellings for '|' > - Whether to add an 'else' clause (and how to indent it) > - A different token for wildcards instead of '_' > - What to do about the footgun of 'case foo' vs. 'case .foo' > > (Note that the last two could be combined, e.g. '?foo' or 'foo?' to mark a > variable binding and '?' for a wildcard.)
I don't know if you read it, so I'll reiterate what I said :-) """ Overall, my main concern with this PEP is that the matching semantics and pragmatics are different from everything else in the language. When reading and understanding a match clause, there's a cognitive overhead because suddently `Point(x, 0)` means something entirely different (it doesn't call Point.__new__, it doesn't lookup `x` in the locals or globals...). Obviously, there are cases where this is worthwhile, but still. It may be useful to think about different notations for these new things, rather than re-use the object construction notation. """ Regards Antoine. _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/HLEPUKFDLNHXXTWMDBSJVAEE6KW3HHE6/ Code of Conduct: http://python.org/psf/codeofconduct/
