On 01/17/2018 08:14 AM, Serhiy Storchaka wrote:
17.01.18 16:34, Victor Stinner пише:
In Februrary 2017, I proposed on python-ideas to change the Python
syntax to allow to declare positional-only parameters in Python:
https://mail.python.org/pipermail/python-ideas/2017-February/044879.html
https://mail.python.org/pipermail/python-ideas/2017-March/044956.html
The main problem -- designing a syntax that does not look ugly. I
> think there are too small time is left before features freezing for
> experimenting with it. It would be better to make such changes at the
> early stage of development.
The syntax question is already solved:
def some_func(a, b, /, this, that, *, the_other):
# some stuff
Everything before the slash is positional-only, between the slash and star is positional-or-keyword, and after the star
is keyword-only. This is what is in our generated help(), and there is a nice symmetry between '/' and '*' being
opposites, and positional/keyword being opposites. And slash is certainly no uglier than star. ;)
--
~Ethan~
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