oauth with tweepy

oauth.py

import os
import tweepy

def create_twitter_api():
    consumer_key = os.getenv('TWITTER_API_KEY')
    consumer_secret = os.getenv('TWITTER_API_SECRET')
    access_token = os.getenv('TWITTER_ACCESS_TOKEN')
    access_secret = os.getenv('TWITTER_ACCESS_TOKEN_SECRET')

    auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
    auth.set_access_token(access_token, access_secret)

    api = tweepy.API(auth)
    return api