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 <gu...@python.org> wrote: > All that sounds fine! > > On Sat, Mar 19, 2016 at 11:28 AM, Stefan Krah <ste...@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@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) > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/brett%40python.org >
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