Activation key generator for sending verification mail

token-generator.py

import base64
import datetime

def activation_key_generator(email):
    expire_date = datetime.datetime.today() + datetime.timedelta(3)
    activation_key = base64.b64encode(
        str(expire_date)) + base64.b64encode(
        str(email)).split('=')[0]

    return activation_key

# returning email in the activation_key
def tokens_email(token_id):
    if "=" in token_id:
        # or using with try except block
        email = token_id.split('=')[1] + '=='
        email = base64.b64decode(email)
        
        return email

# returning expire date in activation_key        
def tokens_expire_date(token_id):
    expire_date_in = token_id.split('=')[0] + '='
    expire_date = base64.b64decode(expire_date_in)

    return expire_date
        
if __name__ == '__main__':
  email = "your@mail.com"
  activation_key = activation_key_generator(email)
  date_result = tokens_expire_date(activation_key)
  mail_result = tokens_email(activation_key)