old_contents: """catalog_api_demo URL Configuration
  
  The `urlpatterns` list routes URLs to views. For more information please see:
  	https://docs.djangoproject.com/en/1.9/topics/http/urls/
  Examples:
  Function views
  	1. Add an import:  from my_app import views
  	2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
  Class-based views
  	1. Add an import:  from other_app.views import Home
  	2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
  Including another URLconf
  	1. Import the include() function: from django.conf.urls import url, include
  	2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
  """
  from django.conf.urls import url, include
  from django.contrib import admin
  
  from views import catalog_api_demo
  
  urlpatterns = [
  	url(r'^catalog_api_demo/$', catalog_api_demo),
  ]
  
new_contents: from django.conf.urls import url, include
  from django.contrib import admin
  
  from views import catalog_api_demo
  
  urlpatterns = [
  	url(r'^catalog_api_demo/$', catalog_api_demo),
  ]
  
subject: Remove default comments