title: Python gzip omit the original filename and timestamp
body: <p>Folks,
    I am generating an md5sum of a gzip file.  Technically, each time its compressing the same file, but the resulting md5sum is different.  How do I tell it to use the <code>-n</code> flag to omit the original filename and timestamp?</p>
  
  <pre><code>f_in = open(tmpFile, 'rb')
  f_out = gzip.open(uploadFile, 'wb')
  f_out.writelines(f_in)
  f_out.close()
  f_in.close()
  </code></pre>
  
  <p>Thanks!</p>