title: Expected a `Response`, `HttpResponse` or `HttpStreamingResponse` to be returned from the view, but received a `<class 'NoneType'>`
body: <p>models.py</p>
  
  <pre><code>class Wishlist(models.Model):
      home = models.ForeignKey(Home, on_delete=models.CASCADE, blank=False, null=False)
      user = models.ForeignKey(User, on_delete=models.CASCADE, blank=False, null=False)
  
      def __str__(self):
          return "{} - {}".format(self.user.username, self.home.address)
  
      class Meta:
          ordering = ('user',)
  </code></pre>
  
  <p>urls.py</p>
  
  <pre><code>urlpatterns = [
      path(r'wishlist/&lt;int:pk&gt;/', views.WishlistGetUserItems.as_view(), name='wish-user-list'),
  ]
  </code></pre>
  
  <p>views.py</p>
  
  <pre><code>class WishlistGetUserItems(APIView):
  
      def get(self, request, pk):
          wishlist = get_list_or_404(Wishlist, user=pk)
          data = serializers.UserWishlistSerializer(wishlist).data
          Response(data, status=status.HTTP_200_OK)
  </code></pre>
  
  <p>I've tried also to print message but seems like the method is not called</p>