title: Expanding English language contractions in Python
body: <p>The English language has <a href="http://en.wikipedia.org/wiki/Wikipedia%3aList_of_English_contractions">a couple of contractions</a>. For instance:</p>
  
  <pre><code>you've -&gt; you have
  he's -&gt; he is
  </code></pre>
  
  <p>These can sometimes cause headache when you are doing natural language processing. Is there a Python library, which can expand these contractions?</p>