title: How do you use get_context_data with TemplateView in Django
body: <p>I'm trying to do something like this: </p>
  
  <pre><code>class AboutView(TemplateView):
      template_name = 'about.html'
  
      def get_context_data(self, **kwargs):
          context = super(AboutView, self).get_context_data(**kwargs)
          context['dahl_books'] = Books.objects.filter(author="Dahl')
  </code></pre>
  
  <p>When I try to access dahl_books in my template like this:</p>
  
  <pre><code>{% for book in dahl_books %}
  </code></pre>
  
  <p><code>dahl_books</code> is not available in the template context, even though the Books QuerySet returned a non-zero number of books. ....am I doing something wrong in either my template or in <code>get_context_data</code>?</p>