title: How to change the file name of an uploaded file in Django?
body: <p>Is it possible to change the file name of an uploaded file in django? I searched, but couldn't find any answer.</p>
  
  <p>My requirement is whenever a file is uploaded its file name should be changed in the following format.</p>
  
  <pre><code>format = userid + transaction_uuid + file_extension
  </code></pre>
  
  <p>Thank you very much...</p>