old_contents: from django.conf.urls import patterns, include, url
  from django.contrib import admin
  
  urlpatterns = patterns('',
  )
  
new_contents: from django.conf.urls import patterns, include, url
  from django.contrib import admin
  
  urlpatterns = patterns('',
      url(r'^admin/', include(admin.site.urls)),
  )
  
subject: Add admin url