title: Python list comprehension over 2D array
body: <p>If I have a 2D array: </p>
  
  <pre><code> [['Wolfe Lane Community Garden', 'X', 'XXX', 'XX', 
   'XXXXX', 'XX', 'XXX', '0.05', 'XXXX'], ...]
  </code></pre>
  
  <p>I only want to extract the first element and the eighth element.  How can I use list comprehension to do it?  Or a filter function?</p>
  
  <p>I <strong>need</strong> to use list comprehension.</p>