Authentication Error?

[sheeran]

I just now upgraded to Mountain Lion and had to re-install some Python stuff to try and get this script working again. After installing tweepy and pytz, I ran the script and got this error:

tweetID file found! 
Latest Tweet ID: 322025990668816385
Gathering unarchived tweets... 
Traceback (most recent call last):
  File "/Users/jabba/Code/scripts/autoTweetArchiver.py", line 59, in <module>
    statuses = api.user_timeline(count=200, include_rts=True, since_id=idValue, screen_name=theUserName)
  File "/Library/Python/2.7/site-packages/tweepy/binder.py", line 185, in _call
    return method.execute()
  File "/Library/Python/2.7/site-packages/tweepy/binder.py", line 168, in execute
    raise TweepError(error_msg, resp)
tweepy.error.TweepError: [{u'message': u'Bad Authentication data', u'code': 215}]

Is this is a result of the Twitter's recent API changes? it appears that Tweepy version 2.0 (what I installed) is updated for it. Thanks for this script BTW. Has worked great up until now.

[barnumbirr]

Basic auth is no longer supported by the Twitter API, use OAuth instead.