code: def xor(s, pad):
      '''XOR a given string ``s`` with the one-time-pad ``pad``'''
      from itertools import cycle
      s = bytearray(force_bytes(s, encoding='latin-1'))
      pad = bytearray(force_bytes(pad, encoding='latin-1'))
      return binary_type(bytearray(x ^ y for x, y in zip(s, cycle(pad)))f xor(s, pad):
      '''XOR a given string ``s`` with the one-time-pad ``pad``'''
      from itertools import cycle
      s = bytearray(force_bytes(s, encoding='latin-1'))
      pad = bytearray(force_bytes(pad, encoding='latin-1'))
      return binary_type(bytearray(x ^ y for x, y in zip(s, cycle(pad))))
docs: XOR a given string ``s`` with the one-time-pad ``pad``