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

[Ethan Furman]

On 01/08/2014 02:28 AM, Antoine Pitrou wrote:
> 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'.

Agreed.  I would have that it would result in b'\x04'.

--
~Ethan~