title: Splitting a 2 dimensional array or a list into two 1 dimensional lists in python
body: <p>You have a 2-Dimensional list of numbers like:</p>
  
  <pre><code>x = [[1,2],[3,4],[5,6],[7,8],[9,10],[11,12],[13,14],[15,16],[17,18]]
  </code></pre>
  
  <p>You need to split it into two lists in such a way that you get the numbers from the first column in one list and the second column in another list:</p>
  
  <pre><code>[1,3,5,7,9,11,13,15,17] [2,4,6,8,10,12,14,16,18]
  </code></pre>
  
  <p>How can that be done in python?</p>
  
  <p>I am posting this question because I could not find a simple answer to it.
  I will be answering it later.</p>