title: Delete or remove last column in CSV file using Python
body: <p>I have a CSV file with 5 columns. Using Python, how can I delete the last column (header5 in the example)? Is there an easy way I'm missing, or do I have to loop through all rows in the CSV and remove each value from the last column (which could still leave me with the undesired preceding comma)?</p>
  
  <p>I'm not seeing anything related to this in the CSV module or elsewhere on the interwebs, so any help is much appreciated.</p>
  
  <pre><code>header1,header2,header3,header4,header5
  value1,value2,value3,value4,value5
  value1,value2,value3,value4,value5
  </code></pre>