title: Recognize user returning to URL from same device
body: <p>I'm new to web programming, so I guess my question would seem very stupid :)</p>
  
  <p>I have simple website on Python/Django. There is some url, which users may open without any authentication.
  I need to remember this user somehow and recognize him when he re-opens this url once again (not for a long time - say, for several hours).</p>
  
  <p>By "same user" I mean "user uses same browser on same device".</p>
  
  <p>How can I achieve this? Thanks in advance :)</p>