from cryptography.fernet import Fernet
import os

# 生成一个新的Fernet密钥
key = Fernet.generate_key()

# 指定密钥文件的路径
key_path = 'secret.key'

# 将密钥保存到文件中
with open(key_path, 'wb') as key_file:
    key_file.write(key)

# 打印密钥以便查看
# print(f"Generated key: {key.decode()}")

# 确保密钥文件的权限设置为只读
os.chmod(key_path, 0o400)

print(f"Key has been saved to {key_path}")