Seems you want numpy: >>> import numpy >>> numpy.frombuffer(b"Hello", dtype=numpy.uint8) ^ numpy.frombuffer(b"World", dtype=numpy.uint8) array([31, 10, 30, 0, 11], dtype=uint8)
Stephan 2018-05-17 12:53 GMT+02:00 Ken Hilton <kenlhil...@gmail.com>: > Hi all, > > We all know the bitwise operators: & (and), | (or), ^ (xor), and ~ (not). > We know how they work with numbers: > > 420 ^ 502 > > 110100100 > 111110110 > == XOR == > 001010010 > = 82 > > But it might be useful in some cases to (let's say) xor a string (or > bytestring): > > HELLO ^ world > > 01001000 01000101 01001100 01001100 01001111 > 01110111 01101111 01110010 01101100 01100100 > =================== XOR ==================== > 00111111 00101010 00111110 00100000 00101011 > = ?*> + > > Currently, that's done with this expression for strings: > > >>> ''.join(chr(ord(a) ^ ord(b)) for a, b in zip('HELLO', 'world')) > '?*> +' > > and this expression for bytestrings: > > >>> bytes(a ^ b for a, b in zip(b'HELLO', b'world')) > b'?*> +' > > It would be much more convenient, however, to allow a simple xor of a > string: > > >>> 'HELLO' ^ 'world' > '?*> +' > > or bytestring: > > >>> b'HELLO' ^ b'world' > b'?*> +' > > (All of this applies to other bitwise operators, of course.) > Compatibility issues are a no-brainer - currently, bitwise operators for > strings raise TypeErrors. > > Thanks. > > Suggesting, > Ken > Hilton > ; > > _______________________________________________ > Python-ideas mailing list > Python-ideas@python.org > https://mail.python.org/mailman/listinfo/python-ideas > Code of Conduct: http://python.org/psf/codeofconduct/ > >
_______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/