Using either * or / could lead to some odd inconsistencies where a missing space is very consequential, eg: x, / = foo # fine x, /= foo # syntax error? x / = foo # syntax error x /= foo # fine, but totally different from the first example.
That said, the * syntax feels intuitive in a way that / doesn’t. I’d suggest: x, *… = foo This seems unambiguous and fairly self-explanatory. - Lucas On Sat, Jun 18, 2022 at 11:23 PM Steven D'Aprano <st...@pearwood.info> wrote: > On Fri, Jun 17, 2022 at 11:32:09AM -0000, Steve Jorgensen wrote: > > > That leads me to want to change the proposal to say that we give the > > same meaning to "_" in ordinary destructuring that it has in > > structural pattern matching, and then, I believe that a final "*_" in > > the expression on the left would end up with exactly the same meaning > > that I originally proposed for the bare "*". > > > > Although that would be a breaking change, it is already conventional > > to use "_" as a variable name only when we specifically don't care > > what it contains following its assignment, so for any code to be > > affected by the change would be highly unusual. > > Not so: it is very common to use `_()` as a function in > internationalisation. > > > https://stackoverflow.com/questions/3077227/mercurial-python-what-does-the-underscore-function-do > > If we are bike-shedding symbols for this feature, I am a bit dubious > about the asterisk. It already gets used in so many places, and it can > be confused for `a, b, *x` with the name x lost. > > What do people think about > > first, second, / = items > > where / stands for "don't advance the iterator"? > > I like it because it reminds me of the slash in "No Smoking" signs, and > similar. As in "No (more) iteration". > > > -- > Steve > _______________________________________________ > 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/B2IIGM5TMC7YWVXHQPD6HKT4IMHHSJDP/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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