title: iterate over pandas dataframe using itertuples
body: <p>I am iterating over a pandas dataframe using itertuples. I also want to capture the row number while iterating:</p>
  
  <pre><code>for row in df.itertuples():
      print row['name']
  </code></pre>
  
  <p>Expected output :</p>
  
  <pre><code>1 larry
  2 barry
  3 michael
  </code></pre>
  
  <p>1, 2, 3 are row numbers. I want to avoid using a counter and getting the row number. Is there an easy way to achieve this using pandas?</p>