[Python-Dev] PEP460 thoughts from a Mercurial dev

Guido van Rossum guido at python.org
Mon Jan 13 18:39:30 CET 2014


On Mon, Jan 13, 2014 at 9:37 AM, Augie Fackler <raf at durin42.com> wrote:
>
> On Mon, Jan 13, 2014 at 12:34 PM, Guido van Rossum <guido at python.org> wrote:
>>
>> On Mon, Jan 13, 2014 at 8:51 AM, Nick Coghlan <ncoghlan at gmail.com> wrote:
>> > On 13 January 2014 23:57, Augie Fackler <raf at durin42.com> wrote:
>> >> 1) What do we need in terms of functionality
>> >>
>> >> Best guess, %s, %d, and %f. I've not done a full audit of the code, but
>> >> some
>> >> limited looking over the grep hits for % in .py files suggests I'm
>> >> right,
>> >> and we could even do without %f (we only use that for 'hg --time'
>> >> output,
>> >> which we could do in unicode).
>> >
>> > I think PEP 460 will have you covered there, or hopefully asciistr on
>> > 3.3+
>>
>> I'm confused on how PEP 460 would help -- Augie mentioned %d, which it
>> excludes.
>
>
>
> Yes - not having %d makes this much much less useful to me.
>
> For my part, it'd probably be fine if we could do %s (which would handle an
> RHS that was bytes, and only bytes, no handing of str or __bytes__-type
> stuff at all) and %d (with all the usual format modifiers, and would result
> in an ascii-compatible sequence of bytes all the time).

Would it be okay of instead of %s you had to use %b for those
semantics? (%d would still exist)

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


More information about the Python-Dev mailing list