如何使用Python解密使用Vim的cryptmethod=blowfish2加密的文件？

from Crypto.Cipher import Blowfish
import struct

with open('encrypted_file.txt', 'rb') as file:
    encrypted_data = file.read()

iv = encrypted_data[:8]
ciphertext = encrypted_data[8:]

key = b'your_encryption_key'  # 替换为实际的密钥
cipher = Blowfish.new(key, Blowfish.MODE_CBC, iv)

decrypted_data = cipher.decrypt(ciphertext)

padding_length = struct.unpack('B', decrypted_data[-1:])[0]
decrypted_data = decrypted_data[:-padding_length]

with open('decrypted_file.txt', 'wb') as file:
    file.write(decrypted_data)

pip install pycrypto