title: Filter a model by date range of next week in Django
body: <p>How can I filter the model data according to date range of two columns - <code>birthday</code> and <code>anniversary</code> which are <code>datefield</code>s using Django querysets?
  This is in a function that is called every friday. So the date range will be from tomorrow i.e., Saturday to next Friday.</p>
  <pre><code>def mailer_function():
      model_data = Model.objects.filter(
                    birthday__range=[&quot;tomorrow(i.e., Saturday's date)&quot;, &quot;next friday's date&quot;],
                    anniversary__range=[&quot;tomorrow(i.e., Saturday's date)&quot;, &quot;next friday's date&quot;]
                   )
  </code></pre>
  <p>Here I should get the model_data whose birthday or anniversary dates are in the next week.</p>