On Mon, 24 Feb 2014 11:54:54 -0800, Ethan Furman wrote: > Greetings! > > A PEP is under discussion to add %-interpolation back to the bytes type > in Python 3.5. > > Assuming the PEP is accepted, what *will* be added back is: > > Numerics: > > b'%d' % 10 --> b'10' > b'%02x' % 10 --> b'0a' > > Single byte: > > b'%c' % 80 --> b'P'
Will %c also accept a length-1 bytes object? b'%c' % b'x' => b'x' > and generic: > > b'%s' % some_binary_blob --> b'tHE*&92h4' (or whatever) Will b'%s' take any arbitrary object, as in: b'Key: %s' % [1, 2, 3, 4] => b'Key: [1, 2, 3, 4]' or only something which is already bytes (i.e. a bytes or bytearray object)? > What is under debate is whether we should also add %a: > > b'%a' % some_obj --> b'some_obj_repr' > > What %a would do: > > get the repr of some_obj > > convert it to ascii using backslashreplace (to handle any code points > over 127) > > encode to bytes using 'ascii' > > Can anybody think of a use-case for this particular feature? Not me. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
