This is code that's supposed to generate a cipher once, then prevent the cipher from being altered or viewed, but the code doesn't work. What's wrong with it?
from cryptography.fernet import Fernet class Cipher: def __init__(self, value=None): self.cipher = Fernet(Fernet.generate_key()) @property def cipher(self): return self.__cipher @cipher.setter def cipher(self, value=None): if not self.__cipher: self.__init__() else: raise ValueError("Cipher may not be altered.") def __repr__(self): return "Cipher may not be viewed."