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Wed May 11 13:28:51 EDT 2016 · https://mail.python.org/pipermail/python-dev/2016-May/144508.html

On Wed, 11 May 2016 at 09:47 Guido van Rossum <guido at python.org> wrote:

> If the authors are happy I'll accept it right away.
>
> (I vaguely recall there's another PEP that's ready for pronouncement --
> but which one?)
>

PEP 509 is the only one I can think of.

-Brett

>
> On Wed, May 11, 2016 at 9:34 AM, Brett Cannon <brett at python.org> wrote:
>
>> Is there anything holding up PEP 515 at this point in terms of acceptance
>> or implementation?
>>
>> On Sat, 19 Mar 2016 at 11:56 Guido van Rossum <guido at python.org> wrote:
>>
>>> All that sounds fine!
>>>
>>> On Sat, Mar 19, 2016 at 11:28 AM, Stefan Krah <stefan at bytereef.org>
>>> wrote:
>>> > Guido van Rossum <guido <at> python.org> writes:
>>> >> So should the preprocessing step just be s.replace('_', ''), or should
>>> >> it reject underscores that don't follow the rules from the PEP
>>> >> (perhaps augmented so they follow the spirit of the PEP and the letter
>>> >> of the IBM spec)?
>>> >>
>>> >> Honestly I think it's also fine if specifying this exactly is left out
>>> >> of the PEP, and handled by whoever adds this to Decimal. Having a PEP
>>> >> to work from for the language spec and core builtins (int(), float()
>>> >> complex()) is more important.
>>> >
>>> > I'd keep it simple for Decimal: Remove left and right whitespace (we're
>>> > already doing this), then remove underscores from the remaining string
>>> > (which must not contain any further whitespace), then use the IBM
>>> grammar.
>>> >
>>> >
>>> > We could add a clause to the PEP that only those strings that follow
>>> > the spirit of the PEP are guaranteed to be accepted in the future.
>>> >
>>> >
>>> > One reason for keeping it simple is that I would not like to slow down
>>> > string conversion, but thinking about two grammars is also a problem --
>>> > part of the string conversion in libmpdec is modeled in ACL2, which
>>> > would be invalidated or at least complicated with two grammars.
>>> >
>>> >
>>> >
>>> > Stefan Krah
>>> >
>>> > _______________________________________________
>>> > Python-Dev mailing list
>>> > Python-Dev at python.org
>>> > https://mail.python.org/mailman/listinfo/python-dev
>>> > Unsubscribe:
>>> https://mail.python.org/mailman/options/python-dev/guido%40python.org
>>>
>>>
>>>
>>> --
>>> --Guido van Rossum (python.org/~guido)
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>>
>
>
> --
> --Guido van Rossum (python.org/~guido)
>
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Showing content from https://mail.python.org/pipermail/python-dev/2016-May/144508.html below:

[Python-Dev] PEP 515: Underscores in Numeric Literals (revision 3)