title: How do I delete the Nth list item from a list of lists (column delete)?
body: <p>How do I delete a "column" from a list of lists?<br>
  Given:</p>
  
  <pre><code>L = [
       ["a","b","C","d"],
       [ 1,  2,  3,  4 ],
       ["w","x","y","z"]
      ]
  </code></pre>
  
  <p>I would like to delete "column" 2 to get:</p>
  
  <pre><code>L = [
       ["a","b","d"],
       [ 1,  2,  4 ],
       ["w","x","z"]
      ]
  </code></pre>
  
  <p>Is there a <b>slice</b> or <b>del</b> method that will do that? Something like:</p>
  
  <pre><code>del L[:][2]
  </code></pre>