[Python-Dev] Call for prudence about PEP-572
steve at holdenweb.com
Sun Jul 8 12:45:24 EDT 2018
On Sun, Jul 8, 2018 at 10:41 AM, Giampaolo Rodola' <g.rodola at gmail.com>
> I find that (space between the parentheses of a function call statement)
> too unnatural as a place where to put an assignment. It is not even
> "guarded" by a keyword like "if" or "while" which can help as indicators
> that an assignment may occur. Also, I think it's way too easy to confuse it
> with a keyword argument:
> >>> foo(x = 1) # keyword arg
> >>> foo(x := 1) # assignment + value passing
But the PEP 8 spellings are
f(x := 1).
The extra spacing makes it obvious that this isn't a regular named argument.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Python-Dev