app.py

gistfile1.txt

class DistributorDelete(DeleteView):
model= Distributor
success_url = reverse_lazy('index')
def get_queryset(self):
query = Distributor.objects.get(pk=distributorid)
query.delete()
return HttpResponse("Deleted!") and the url is url(r'^(?P<pk>[a-z0-9]+)/delete/$', sales.views.DeleteView.as_view(), name='distributordelete'), but its give me a error 
Exception Type:	ImproperlyConfigured
Exception Value:	
DeleteView is missing a QuerySet. Define DeleteView.model, DeleteView.queryset, or override DeleteView.get_queryset().