title: Can pandas.DataFrame have list type column?
body: <p>Is it possible to create pandas.DataFrame which includes list type field?</p>
  
  <p>For example, I'd like to load the following csv to pandas.DataFrame:</p>
  
  <pre><code>id,scores
  1,"[1,2,3,4]"
  2,"[1,2]"
  3,"[0,2,4]"
  </code></pre>