[Python-Dev] RFC: PEP 460: Add bytes % args and bytes.format(args) to Python 3.5 (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Fri Jan 10 23:42:18 CET 2014


On Fri, 10 Jan 2014 17:33:57 -0500 "Eric V. Smith" <eric at trueblade.com> wrote:

On 1/10/2014 5:29 PM, Antoine Pitrou wrote: > On Fri, 10 Jan 2014 12:56:19 -0500 > "Eric V. Smith" <eric at trueblade.com> wrote: >> >> I agree. I don't see any reason to exclude int and float. See Guido's >> messages http://bugs.python.org/issue3982#msg180423 and >> http://bugs.python.org/issue3982#msg180430 for some justification and >> discussion. > > If you are representing int and float, you're really formatting a text > message, not bytes. Basically if you allow the formatting of int and > float instances, there's no reason not to allow the formatting of > arbitrary objects through str. It doesn't make sense to > special-case those two types and nothing else.

It might not for .format(), but I'm not convinced. But for %-formatting, str is already special-cased for these types.

That's not what I'm saying. str.mod is able to represent all kinds of types through %s and calling str. It doesn't make sense for bytes.mod to only support int and float. Why only them?

Regards

Antoine.



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