Simple python XOR encrypt/decrypt

xor.py

#
# NB : this is not secure
# from http://code.activestate.com/recipes/266586-simple-xor-keyword-encryption/
# added base64 encoding for simple querystring :)
#

# modify for compatibility on python 3

import sys
import base64

from itertools import cycle


if sys.version_info[0] < 3: # if python 2
    from itertools import izip

    def _encode_string(string):
        return base64.encodestring(string)

    def _decode_string(string):
        return base64.decodestring(string)
else:
    izip = zip

    def _encode_string(string):
        return base64.encodebytes(string.encode()).decode()

    def _decode_string(string):
        return base64.decodebytes(string.encode()).decode()


key = 'h4shK3ys'

def _xored(value, key):
    return chr(ord(value) ^ ord(key))


def xor(data, keys):
    data_pair = izip(data, cycle(keys))
    return ''.join(_xored(val, key) for (val, key) in data_pair)


def decode(data, keys=key):
    data_decoded = _decode_string(data)
    return xor(data_decoded, keys)


def encode(data, keys=key):
    data_xored = xor(data, keys)
    return _encode_string(data_xored).replace('\n', '')


if __name__ == "__main__":

    keys = 's3cre7-h45h'
    text = 'this is secret text 1@#@#/host:port'
    
    enc = encode(text, keys)
    dec = decode(enc, keys)
    
    print('text:{}\nenc:"{}"\ndec:{}'.format(text, enc, dec))
    
    #  Python 3.7.4 (default, Jul  9 2019, 00:06:43)
    #  [GCC 6.3.0 20170516] on linux
    #  text:this is secret text 1@#@#/host:port
    #  enc:"B1sKAUVeXkhHUAsBVhdSEVJVHBQEKFBzQF0NWF4cDkUHAUc="
    #  dec:this is secret text 1@#@#/host:port