Laravel-compatible encryption and decryption in python

laravel_encryption.py

import os
import json
import hashlib
import hmac
import base64
from Crypto.Cipher import AES
from phpserialize import loads, dumps


def mcrypt_decrypt(value, iv):
    global key
    AES.key_size = 128
    crypt_object = AES.new(key=key, mode=AES.MODE_CBC, IV=iv)
    return crypt_object.decrypt(value)


def mcrypt_encrypt(value, iv):
    global key
    AES.key_size = 128
    crypt_object = AES.new(key=key, mode=AES.MODE_CBC, IV=iv)
    return crypt_object.encrypt(value)


def decrypt(bstring):
    global key
    dic = json.loads(base64.b64decode(bstring).decode())
    mac = dic['mac']
    value = bytes(dic['value'], 'utf-8')
    iv = bytes(dic['iv'], 'utf-8')
    if mac == hmac.new(key, iv+value, hashlib.sha256).hexdigest():
        return loads(mcrypt_decrypt(base64.b64decode(value), base64.b64decode(iv))).decode()
    return ''


def encrypt(string):
    global key
    iv = os.urandom(16)
    string = dumps(string)
    padding = 16 - len(string) % 16
    string += bytes(chr(padding) * padding, 'utf-8')
    value = base64.b64encode(mcrypt_encrypt(string, iv))
    iv = base64.b64encode(iv)
    mac = hmac.new(key, iv+value, hashlib.sha256).hexdigest()
    dic = {'iv': iv.decode(), 'value': value.decode(), 'mac': mac}
    return base64.b64encode(bytes(json.dumps(dic), 'utf-8'))


key = b'1234567890abcdef'
print(decrypt(encrypt('something')) == 'something')

File "laravel_encryption.py", line 28, in decrypt
value = bytes(dic['value'], 'utf-8')
TypeError: str() takes at most 1 argument (2 given)

can you help me to solve it please