title: Python get last reading time of a file
body: <p>I'm looking for a solution to get the time a file was read at last. The file will be not modified or created just opened in reading mode. This works but only for writing in a file. If I open the file in read mode, the time is not correct:</p>
  
  <pre><code>f = open('my_path/test.txt', 'r')
  f.close()
  
  print time.ctime(os.stat('my_path/test.txt').st_mtime)
  </code></pre>
  
  <p>Any hints?</p>