Convert userid to screename withTwython

userid_to_screename

from twython import Twython

#Auth steps
consumer_key = 'H4JOacuHuJ0RfdUnvsKb6tXge'
consumer_secret = 'jh9mLhQKImVG1SViD294pJWDql5cS5aHk2K3Lt7Z2pWeJmewRB'
twitter = Twython(consumer_key, consumer_secret)

samplefollower = []

#We create a comma separated string from the previous list
comma_separated_string = ",".join(samplefollower)
print(comma_separated_string)

#Now, we query twitter with the comma separated list
output = twitter.lookup_user(user_id=comma_separated_string)
print(output)
username_list=[]

#Loop through the results
for user in output:
    username_list.append(user['screen_name'])
print('-----------------------------------------------')
print(username_list)