title: Django: Get one key and value from queryset dictionary
body: <p>I have this query:
  <code>item = Item.objects.filter(id=3)</code></p>
  
  <p>It is returning a queryset with its the keys and values.
  Now I need to extract a particular value from the queryset, like this:</p>
  
  <p><code>item_name = item['name']</code></p>
  
  <p>But it does not work. How can I achieve this? Send the most simple way if possible, please. Thanks!</p>