old_contents: from django.conf.urls import url, include
  from registration.views import *
  
  urlpatterns = [
      url(r'^$', HomeView.as_view(), name='registration.views.home'),
      url(r'^submit/$', SubmitView.as_view(), name='registration.views.submit'),
      # TODO: done url?
      # TODO: error url?
  ]
  
new_contents: from django.conf.urls import url, include
  from registration.views import *
  
  urlpatterns = [
      url(r'^$', HomeView.as_view(), name='registration.views.home'),
      url(r'^submit/$', SubmitView.as_view(), name='registration.views.submit'),
  ]
  
subject: Remove registration url comments -> urls ready