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

Victor Stinner victor.stinner at gmail.com
Wed Jan 8 18:25:16 CET 2014


2014/1/8 Ethan Furman <ethan at stoneleaf.us>:

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'.

The PEP proposes b'%c' % 4 => b'\x04.

Antoine gave me a good argument against supporting b'%s' % int: how would int subclasses be handled? int has no bytes() nor bformat() method. bytes(int) returns a string of null bytes.

I'm maybe simpler to only support %s format with bytes-like objects (bytes, bytearray, memoryview).

Victor



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