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

Antoine Pitrou solipsis at pitrou.net
Wed Jan 8 11:28:07 CET 2014


On Wed, 8 Jan 2014 11:02:19 +0100 Victor Stinner <victor.stinner at gmail.com> wrote:

> What does b'%s' % 7 do? See Examples of the PEP: b'a%sc%s' % (b'b', 4) gives b'abc4' [...] > And then what? Use the "default" encoding? ASCII? Bytes have no encoding. There are just bytes :-)

Therefore you shouldn't accept integers. It does not make sense to format 4 as b'4'.

IMO the typical usecase will by b'%s: %s' % (b'Header', binarydata)

Agreed.

Regards

Antoine.



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