Creating twitter lists from followers

twitter-lists.py

import twitter

import os

CONSUMER_KEY = os.environ['CONSUMER_KEY']
CONSUMER_SECRET = os.environ['CONSUMER_SECRET']
ACCESS_TOKEN = os.environ['ACCESS_TOKEN']
ACCESS_TOKEN_SECRET = os.environ['ACCESS_TOKEN_SECRET']
LIST_ID = os.environ['TWITTER_LIST_ID']


# Create an Api instance.
api = twitter.Api(consumer_key=CONSUMER_KEY,
                  consumer_secret=CONSUMER_SECRET,
                  access_token_key=ACCESS_TOKEN,
                  access_token_secret=ACCESS_TOKEN_SECRET)

users = api.GetFriends()

print("Following count: " + str(len(users)))
# print([u.id_str for u in users])

user_ids = [u.id_str for u in users]
print("User ID count: " + str(len(user_ids)))

lists = api.GetLists()

members = api.GetListMembers(list_id=LIST_ID)

member_ids = [m.id_str for m in members]
print("Member ID count: " + str(len(member_ids)))

diff_ids = set(user_ids) - set(member_ids)
print("Diff ID count: " + str(len(diff_ids)))

for x in diff_ids:
    api.CreateListsMember(list_id=LIST_ID, user_id=x)