Refer to PEP 3137 and PEP 358.
Bytes objects are for conveying binary data (or encoded strings). Such binary
data is customary specified in hex-dump or base64 format in source files.
It would be nice to introduce a way in python to do that 'natively' (at lexical
analysis time) using x-strings and y-strings (in lieu of f-strings).
x-strings:
x"0123456789abcdef" (x-prefixed quoted string of even-numbered
amount of characters of the set [0-9a-fA-F], whitespace ignored)
equivalent to:
b"\x01\x23\x45\x67\x89\xab\xcd\xef" (but more readable)
y-strings:
y"ASNFZ4mrze8=" (y-prefixed quoted string of valid base64,
whitespace ignored)
equivalent to:
b"\x01\x23\x45\x67\x89\xab\xcd\xef" (but shorter)
This is not a replacement of the hex/base64 encoding, binascii packages etc. It
just gives the programmer more freedom to specify literal bytes objects in the
source code.
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