Post picture on Twitter

You need to have access to the version V1 of the Twitter API.

The consumer key, secret and access token/secret are stored in the environment.

import os
import tweepy

def post_twitter(message, image):
    consumer_key = os.environ["TWITTER_CONSUMER_KEY"]
    consumer_secret = os.environ["TWITTER_CONSUMER_SECRET"]
    access_token = os.environ["TWITTER_ACCESS_TOKEN"]
    access_token_secret = os.environ["TWITTER_ACCESS_TOKEN_SECRET"]
    twitter_auth_keys = {
        "consumer_key": consumer_key,
        "consumer_secret": consumer_secret,
        "access_token": access_token,
        "access_token_secret": access_token_secret
    }
    auth = tweepy.OAuthHandler(
        twitter_auth_keys['consumer_key'],
        twitter_auth_keys['consumer_secret']
    )
    auth.set_access_token(
        twitter_auth_keys['access_token'],
        twitter_auth_keys['access_token_secret']
    )
    # Authenticate with the API
    api = tweepy.API(auth)
    # Upload the picture on Twitter
    media = api.media_upload(image)
    # Post tweet with image
    api.update_status(status=message, media_ids=[media.media_id])