old_contents: from django.conf.urls import patterns, include, url
  
  import dbstorage.views
  
  urlpatterns = [
  	url(r'^/(.*)', dbstorage.views.get_file_content_view, name='get_file_content_view'),
  ]
new_contents: from django.conf.urls import patterns, include, url
  
  import dbstorage.views
  
  urlpatterns = [
  	url(r'^(.*)', dbstorage.views.get_file_content_view, name='get_file_content_view'),
  ]
subject: fix a Django warning