title: Extract array from list in python
body: <p>If I have a list like this:</p>
  
  <p><code>&gt;&gt;&gt; data = [(1,2),(40,2),(9,80)]</code></p>
  
  <p>how can I extract the the two lists [1,40,9] and [2,2,80] ? Of course I can iterate and extract the numbers myself but I guess there is a better way ?</p>