title: Generating a range of numbers as strings Python
body: <p>I need to loop over a number of files with structured files names.</p>
  
  <p>They are of the form 'Mar00.sav', 'Sep00.sav', 'Mar01.sav'</p>
  
  <p>At the moment I do this;</p>
  
  <pre><code>Years = ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '14', '15', '16', '17']
  </code></pre>
  
  <p>Which works but I was wondering if there is a better way?</p>
  
  <p>I tried range but  <code>str(range(00,17))</code> will drop the leading zeros...</p>