              # preview templates, so we have to preserve that format.
              "comments/%s_%s_preview.html" % (model._meta.app_label, model._meta.module_name),
              "comments/%s_preview.html" % model._meta.app_label,
              # Now the usual directory based template hierarchy.
              "comments/%s/%s/preview.html" % (model._meta.app_label, model._meta.module_name),
              "comments/%s/preview.html" % model._meta.app_label,
              "comments/preview.html",
          ]
          return render_to_response(
              template_list, {
 
</s> remove             "comments/%s_%s_preview.html" % (model._meta.app_label, model._meta.module_name),
 </s> add             "comments/%s_%s_preview.html" % (model._meta.app_label, model._meta.model_name), </s> remove                 url(r'^%s/%s/' % (model._meta.app_label, model._meta.module_name),
 </s> add                 url(r'^%s/%s/' % (model._meta.app_label, model._meta.model_name), </s> remove             names.append("%s/%s%s.html" % (opts.app_label, opts.object_name.lower(), self.template_name_suffix))
 </s> add             names.append("%s/%s%s.html" % (opts.app_label, opts.model_name, self.template_name_suffix)) </s> remove         response['X-Object-Type'] = "%s.%s" % (model._meta.app_label, model._meta.object_name.lower())
 </s> add         response['X-Object-Type'] = "%s.%s" % (model._meta.app_label, model._meta.model_name) </s> remove         return "%s.%s" % (smart_text(self.app_label), smart_text(self.module_name))
 </s> add         return "%s.%s" % (smart_text(self.app_label), smart_text(self.model_name))
            "comments/%s/%s/preview.html" % (model._meta.app_label, model._meta.model_name),
              # preview templates, so we have to preserve that format.
              "comments/%s_%s_preview.html" % (model._meta.app_label, model._meta.module_name),
              "comments/%s_preview.html" % model._meta.app_label,
              # Now the usual directory based template hierarchy.
            "comments/%s/%s/preview.html" % (model._meta.app_label, model._meta.model_name),
              "comments/%s/preview.html" % model._meta.app_label,
              "comments/preview.html",
          ]
          return render_to_response(
              template_list, {
keep keep keep keep replace keep keep keep keep keep
 Fixed #19689 -- Renamed `Model._meta.module_name` to `model_name`. 
django/contrib/comments/views/comments.py