[Python-Dev] PEP460 thoughts from a Mercurial dev (original) (raw)

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)

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