python 3des-ecb加解密

from pyDes import des, CBC, PAD_PKCS5
import binascii
from Crypto.Cipher import DES3
import pyDes

def des3_encrypt(s,key):

    secret_key = key
    k=pyDes.triple_des(key=secret_key)
    en = k.encrypt(s)
    return binascii.b2a_hex(en)

def des3_decrypt(s,key):

    secret_key = key
    k=pyDes.triple_des(key=secret_key)
    en = k.decrypt(s)
    return binascii.b2a_hex(en)