I found some projects on youtube, and this is one of them. I’m trying with the password manager program. Here’s the link: https://www.youtube.com/watch?v=DLn3jOsNRVE And here’s my code: from cryptography.fernet import Fernet ”’ def write_key(): key = Fernet.generate_key() with open("key.key", "wb") as key_file: key_file.write(key)”’ def load_key(): file = open("key.key", "rb") key = file.read() file.close() return key… Read More I did it by the tutorial and it's not working