title: turndjango class based view dispatch ValueError
body: <p>My view class is like this:</p>
  
  <pre><code>class RecoedView(View):
      isbn = None
  
      def dispatch(self, request, *args, **kwargs):
          self.isbn = '9754654323456'
          super(RecordView, self).dispatch(request, *args, **kwargs)
  
      def get(self, request, *args, **kwargs):
          return HttpResponse('This is get')
  
      def post(self, request, *args, **kwargs):
          return HttpResponse('This is post')
  </code></pre>
  
  <p>When i run my view with dispatch method overridden i get rhe following error.</p>
  
  <pre><code>ValueError: The view ils.views.RecordView didn't return an HttpResponse object. It returned None instead.
  </code></pre>
  
  <p>Why am i getting this. Plese make me understand</p>