title: Python twitter crawler for tweets older than one week?
body: <p>For an academic usage, I would like to analyze about three months of tweets. However, it seems the <a href="https://dev.twitter.com/docs/using-search" rel="nofollow">official Twitter search API</a> doesn't provide tweets older than one week.</p>
  
  <p>I've tried to write a self crawler, however, given a search keyword, Twitter page will not show tweets older than about one week.</p>
  
  <p>Is there any trick that I can get older tweets? Or my best bet is to hit the API once a week and do it for the following three months?</p>