happy_valentines_day.py

happy_valentines_day.py

#!/usr/bin/env python3
import argparse


def encode(secret):
    binary = bin(int.from_bytes(secret.encode(), 'big'))
    return binary[2:].replace('0', '❤️').replace('1', '💜')


def decode(code):
    binary = int('0b{}'.format(code.replace('❤️', '0').replace('💜', '1')), 2)
    return binary.to_bytes((binary.bit_length() + 7) // 8, 'big').decode()


if __name__ == '__main__':
    parser = argparse.ArgumentParser()

    parser.add_argument("string", type=str)
    parser.add_argument('-e', '--encode', action="store_true",
                        help='encode a secret')
    parser.add_argument('-d', '--decode', action="store_true",
                        help='decode a secret')

    args = parser.parse_args()

    if args.encode:
        print(encode(args.string))

    elif args.decode:
        print(decode(args.string))
    else:
        raise NotImplementedError

x.py

Python 3.6.0 (default, Dec 24 2016, 08:01:42)
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.42.1)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import happy_valentines_day
>>> happy_valentine_day.encode("Happy Valentine's Day!")
'💜❤️❤️💜❤️❤️❤️❤️💜💜❤️❤️❤️❤️💜❤️💜💜💜❤️❤️❤️❤️❤️💜💜💜❤️❤️❤️❤️❤️💜💜💜💜❤️❤️💜❤️❤️💜❤️❤️❤️❤️❤️❤️💜❤️💜❤️💜💜❤️❤️💜💜❤️❤️❤️❤️💜❤️💜💜❤️💜💜❤️❤️❤️💜💜❤️❤️💜❤️💜❤️💜💜❤️💜💜💜❤️❤️💜💜💜❤️💜❤️❤️❤️💜💜❤️💜❤️❤️💜❤️💜💜❤️💜💜💜❤️❤️💜💜❤️❤️💜❤️💜❤️❤️💜❤️❤️💜💜💜❤️💜💜💜❤️❤️💜💜❤️❤️💜❤️❤️❤️❤️❤️❤️💜❤️❤️❤️💜❤️❤️❤️💜💜❤️❤️❤️❤️💜❤️💜💜💜💜❤️❤️💜❤️❤️💜❤️❤️❤️❤️💜'
>>> happy_valentine_day.decode('💜❤️❤️💜❤️❤️❤️❤️💜💜❤️❤️❤️❤️💜❤️💜💜💜❤️❤️❤️❤️❤️💜💜💜❤️❤️❤️❤️❤️💜💜💜💜❤️❤️💜❤️❤️💜❤️❤️❤️❤️❤️❤️💜❤️💜❤️💜💜❤️❤️💜💜❤️❤️❤️❤️💜❤️💜💜❤️💜💜❤️❤️❤️💜💜❤️❤️💜❤️💜❤️💜💜❤️💜💜💜❤️❤️💜💜💜❤️💜❤️❤️❤️💜💜❤️💜❤️❤️💜❤️💜💜❤️💜💜💜❤️❤️💜💜❤️❤️💜❤️💜❤️❤️💜❤️❤️💜💜💜❤️💜💜💜❤️❤️💜💜❤️❤️💜❤️❤️❤️❤️❤️❤️💜❤️❤️❤️💜❤️❤️❤️💜💜❤️❤️❤️❤️💜❤️💜💜💜💜❤️❤️💜❤️❤️💜❤️❤️❤️❤️💜')
"Happy Valentine's Day!"