how to get the tweets from the tweeter using tweetstream python

See more:

Python2.7

I have written this code:

import tweetstream
import pymongo

connection = pymongo.Connection("mongodb://localhost:27017")
db = connection.socialdata
words = ["social media", "innovation", "cloud computing"]
with tweetstream.FilterStream('username', 'password', track=words) as stream:
    for tweet in stream:
        db.tweets.save(tweet)

But on execution I am getting following error please tell me how to remove this error:

Traceback (most recent call last):
  File "tweet.py", line 9, in <module>
    with tweetstream.FilterStream(username, password, track=words) as stream:
TypeError: __init__() takes at least 5 arguments (4 given)</module>