On Jun 23, 2019, at 17:01, Steven D'Aprano <[email protected]> wrote: > >> On Sun, Jun 23, 2019 at 03:22:37PM -0400, James Lu wrote: >> Make $ a valid identifier and a singleton. >> >> $ is a useful placeholder in []. >> >> Possible function partial syntax: >> >> def foo(x, y): >> print(x, y) >> >> partialized = foo[$, 10] > > I don't think that creating partial functions is important enough to: > > 1. make partial functions a built-in language feature; > 2. using syntax (square brackets); > 3. and require a new built-in singleton. > > > I think that functools.partial is missing two features: > > - the ability to close over positional parameters from the right, > rather than the left; > > - the ability to skip parameters. > > The first could be solved with a "rpartial" function, and the second by > using ellipsis ... as a placeholder, or a named constant in the > functools module.
I’m pretty sure there are multiple improved-partial projects on PyPI. Maybe just picking out one and adding a link to it from the functools docs is sufficient? _______________________________________________ Python-ideas mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/[email protected]/message/5ZNUWJJ27H2MYIDRTGBFCP4IEMEA7AAI/ Code of Conduct: http://python.org/psf/codeofconduct/
