old_contents: from django.conf.urls import url
  from django.views.generic import TemplateView
  
  
  urlpatterns = [
      url(r'^$', TemplateView.as_view(template_name='editor/map.html'), name='editor.index')
  ]
  
new_contents: from django.conf.urls import url
  from django.views.generic import TemplateView
  
  urlpatterns = [
      url(r'^$', TemplateView.as_view(template_name='editor/map.html'), name='editor.index')
  ]
  
subject: sort imports