          class ExampleStringTagsViewSet(views.ExampleGenericAPIView):
              schema = AutoSchema(tags=['example1', 'example2'])
  
          url_patterns = [
              url(r'^test/?$', ExampleStringTagsViewSet.as_view()),
          ]
          generator = SchemaGenerator(patterns=url_patterns)
          schema = generator.get_schema(request=create_request('/'))
          assert schema['paths']['/test/']['get']['tags'] == ['example1', 'example2']
  
 
</s> remove             url(r'^any-dash_underscore/?$', RestaurantAPIView.as_view()),
            url(r'^restaurants/branches/?$', BranchAPIView.as_view())
 </s> add             path('any-dash_underscore/', RestaurantAPIView.as_view()),
            path('restaurants/branches/', BranchAPIView.as_view()) </s> remove             url(r'^example/?$', ExampleView.as_view()),
 </s> add             path('example/', ExampleView.as_view()), </s> remove             url(r'example/(?P<pk>\d+)/$', BasicNamingCollisionView.as_view()),
            url(r'example/(?P<slug>\w+)/$', BasicNamingCollisionView.as_view()),
 </s> add             path('example/<int:pk>/', BasicNamingCollisionView.as_view()),
            path('example/<str:slug>/', BasicNamingCollisionView.as_view()), </s> remove             url(r'^api-token-auth/', obtain_auth_token)
 </s> add             path('api-token-auth/', obtain_auth_token) </s> remove             url(r'^duplicate1/?$', views.ExampleOperationIdDuplicate1.as_view()),
            url(r'^duplicate2/?$', views.ExampleOperationIdDuplicate2.as_view()),
 </s> add             path('duplicate1/', views.ExampleOperationIdDuplicate1.as_view()),
            path('duplicate2/', views.ExampleOperationIdDuplicate2.as_view()),
            path('test/', ExampleStringTagsViewSet.as_view()),
          class ExampleStringTagsViewSet(views.ExampleGenericAPIView):
              schema = AutoSchema(tags=['example1', 'example2'])
  
          url_patterns = [
            path('test/', ExampleStringTagsViewSet.as_view()),
          ]
          generator = SchemaGenerator(patterns=url_patterns)
          schema = generator.get_schema(request=create_request('/'))
          assert schema['paths']['/test/']['get']['tags'] == ['example1', 'example2']
  
keep keep keep keep replace keep keep keep keep keep
 Replace all url() calls with path() or re_path() (#7512)

* url() is deprecated in Django 3.1

* update given feedbacks on url() is deprecated in Django 3.1

* Fix test_urlpatterns.py to continue testing mixed re_path() and path()

* Fix one missed reference

Co-authored-by: sanjusci <sanju.sci9@gmail.com> 
tests/schemas/test_openapi.py