              )
          )
  
          data = {
              'writer': six.text_type(self.w_woodward.pk),
              'age': '65',
          }
          form = WriterProfileForm(data)
          instance = form.save()
          self.assertEqual(six.text_type(instance), 'Bob Woodward is 65')
 
</s> remove         self.assertEqual(six.text_type(instance), 'Bob Woodward is 65')
 </s> add         self.assertEqual(str(instance), 'Bob Woodward is 65') </s> remove             'writer': six.text_type(self.w_royko.pk),
 </s> add             'writer': str(self.w_royko.pk), </s> remove             'form-0-id': six.text_type(poet.id),
 </s> add             'form-0-id': str(poet.id), </s> remove             'host_set-0-id': six.text_type(host1.id),
 </s> add             'host_set-0-id': str(host1.id), </s> remove             'ownerprofile-0-owner': six.text_type(owner1.auto_id),
 </s> add             'ownerprofile-0-owner': str(owner1.auto_id),
            'writer': str(self.w_woodward.pk),
              )
          )
  
          data = {
            'writer': str(self.w_woodward.pk),
              'age': '65',
          }
          form = WriterProfileForm(data)
          instance = form.save()
          self.assertEqual(six.text_type(instance), 'Bob Woodward is 65')
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed six.<various>_types usage

Thanks Tim Graham and Simon Charette for the reviews. 
tests/model_forms/tests.py