title: Insert new line in CSV at second row via Python
body: <p>Is it possible to insert a new line in a CSV file at the 2nd row?  For example, I have a CSV with column names and their values:</p>
  
  <pre><code>meter_id, sdp_id, lat, lon
  813711, 1331, 34.298, -83.113
  </code></pre>
  
  <p>The application I'm attempting to read this file into requires a new line added indicating the column type.  In the above example all would be string, so the CSV would need to be:</p>
  
  <pre><code>meter_id, sdp_id, lat, lon
  String, String, String, String
  813711, 1331, 34.298, -83.113
  </code></pre>
  
  <p>I've read several posts how to add a new line at the end of the CSV, but couldn't find anything on how to do the above.</p>