/
xddxdd
/
Python
Обзор
Документация
Войти
/
xddxdd
/
Python
Код
Запросы
0
Задачи
Вики
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
ciphers/rot13.py
37 строк
841 B
Dhruv Manilawala
fix(mypy): type annotations for cipher algorithms (#4306)
04 апр 2021, 08:22
Не верифицирован
04 апр 2021, 08:22
6089536
Код
Авторство
О чём код?
def dencrypt(s: str, n: int = 13) -> str: """ https://en.wikipedia.org/wiki/ROT13 >>> msg = "My secret bank account number is 173-52946 so don't tell anyone!!" >>> s = dencrypt(msg) >>> s "Zl frperg onax nppbhag ahzore vf 173-52946 fb qba'g gryy nalbar!!" >>> dencrypt(s) == msg True """ out = "" for c in s: if "A" <= c <= "Z": out += chr(ord("A") + (ord(c) - ord("A") + n) % 26) elif "a" <= c <= "z": out += chr(ord("a") + (ord(c) - ord("a") + n) % 26) else: out += c return out def main() -> None: s0 = input("Enter message: ") s1 = dencrypt(s0, 13) print("Encryption:", s1) s2 = dencrypt(s1, 13) print("Decryption: ", s2) if __name__ == "__main__": import doctest doctest.testmod() main()