title: Writing an extra column WITH header
body: <p>at the moment I have this:</p>
  
  <p>2 variables:
  varHeader: ExtraColumn
  varContent: ToBeFilledIn</p>
  
  <pre><code>        writer.writeheader()
          for line in reader:
              writer.writerow(line)
  </code></pre>
  
  <p>And that all works fine. Problem is that I have 2 variables, varHeader and varContent. And what am I failing at:</p>
  
  <ol>
  <li>before writer.writeheader, I need to add an extra column with as title ExtraColumn, which is the content of the varHeader variable.</li>
  <li>each 'line' needs to add the value of varContent to the newly created column</li>
  </ol>
  
  <p>Although this seemed simple to me, it is blowing my mind, I can't get it done. Guess it's a typical friday disease ;-)</p>
  
  <p>Thanks mates,</p>
  
  <p>regard from a newbie.</p>