title: Splitting a nested list into two lists
body: <p>I have a nested list like this:</p>
  
  <pre><code>    my_list = [[1320120000000, 48596281], [1320206400000, 48596281], [1320292800000, 50447908]]
  </code></pre>
  
  <p>I would like to split it into something that looks like this:</p>
  
  <pre><code>    my_list1 = [48596281, 48596281, 50447908] 
      my_list2 = [1320120000000, 1320206400000, 1320292800000]    
  </code></pre>
  
  <p>I know that this is fairly simple, but I haven't been able to get it to work. Any help would be much appreciated.</p>