pip install twython
python
from twython import Twython
consumer_key = 'YOUR_CONSUMER_KEY'
consumer_secret = 'YOUR_CONSUMER_SECRET'
access_token = 'YOUR_ACCESS_TOKEN'
access_token_secret = 'YOUR_ACCESS_TOKEN_SECRET'
twitter = Twython(consumer_key, consumer_secret, access_token, access_token_secret)
tweet = "Hello, Twython library is awesome!"
twitter.update_status(tweet)