[Python-Dev] RFC: PEP 460: Add bytes % args and bytes.format(args) to Python 3.5 (original) (raw)
Antoine Pitrou solipsis at pitrou.net
Sat Jan 11 00:24:05 CET 2014
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On Fri, 10 Jan 2014 18:14:45 -0500 "Eric V. Smith" <eric at trueblade.com> wrote:
>> Because embedding the ASCII equivalent of ints and floats in byte streams >> is a common operation? > > Again, if you're representing "ASCII", you're representing text and > should use a str object. Yes, but is there existing 2.x code that uses %s for int and float (perhaps unwittingly), and do we want to "help" that code out? Or do we want to make porters first change to using %d or %f instead of %s?
I'm afraid you're misunderstanding me. The PEP doesn't allow for %d and %f on bytes objects.
I think what you're getting at is that in addition to not calling format, we don't want to call str, either, for the same reason.
Not only. We don't want to do anything that actually asks for a textual representation of something. %d and %f ask for a textual representation of a number, so they're right out.
Regards
Antoine.
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