config.py

import os
from os import getenv
from dotenv import load_dotenv

load_dotenv()
ENVIRONMENT = os.environ.get('ENVIRONMENT', True)
if ENVIRONMENT:
    try:
        API_ID = os.environ["API_ID"]
    except ValueError:
        raise Exception("Your API_ID is not a valid integer.")
    API_HASH = os.environ["API_HASH"]
    BOT_TOKEN = os.environ["BOT_TOKEN"]