old_contents: from django.conf.urls import include, url
  urlpatterns = [
      url(r'^happy_dogs/', include('HappyDogs.apps.HappyDogs.urls')),
      url(r'^rest/happy_dogs/', include('HappyDogs.apps.HappyDogs.rest_urls')),
  ]
  
new_contents: from django.conf.urls import include, url
  from HappyDogs.apps.HappyDogs.views import happy_dogs_home
  from django.conf import settings
  from django.conf.urls.static import static
  
  urlpatterns = [
      url(r'^$', happy_dogs_home , name='index'),
      url(r'^happy_dogs/', include('HappyDogs.apps.HappyDogs.urls')),
      url(r'^rest/happy_dogs/', include('HappyDogs.apps.HappyDogs.rest_urls')),
  ] + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
  
subject: Test Unit