[Python-ideas] PEP for issue2292, "Missing *-unpacking generalizations"

[Guido van Rossum]

On Sat, Jul 6, 2013 at 2:35 PM, Joshua Landau
<joshua.landau.ws at gmail.com> wrote:
> On 6 July 2013 21:38, Jan Kaliszewski <zuo at chopin.edu.pl> wrote:
>> Forbidding keyword arguments before *args in function calls does not seem so
>> bad, but still it is a serious backwards incompatibility... And why would we
>> actually want to forbid it?
>
> I included it because my understanding is that it was in the original patch.
>
> I'm not sure why anyone would want to forbid it, other than it being
> easier to write the patch that way. Compatibility aside, I'm not sure
> why anyone would want to keep it either, though.

In this case, compatibility trumps everything, and we should keep it for sure.

But even if we had a choice, my experience tells me that it's a good
thing to keep, because nobody can remember the rules of what goes
before what.

-- 
--Guido van Rossum (python.org/~guido)