NameError: name 'Api_key' not defined in Django

[nnam-droid12]

I have set an environment variables for my api_key and api_secret using Python decouple in settings.py
From decouple import config

API_KEY = config('API_KEY)
API_SECRET = config('API_SECRET')
While in the .env file I added the key and secret as shown below
API_KEY=***********
API_SECRET=*********
While in my views.py I'm using api_key and api_secret but I don't really know how to call the API key and secret from settings.py when I removed it from settings.py and I added it to views.py I got a type error saying bytes or bytearray expected but got str

Pls how can I call the this api_key and secret from settings.py since I have set up an environment variable already