old_contents: """BlogApp URL Configuration
  
  The `urlpatterns` list routes URLs to views. For more information please see:
      https://docs.djangoproject.com/en/1.8/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. Add an import:  from blog import urls as blog_urls
      2. Add a URL to urlpatterns:  url(r'^blog/', include(blog_urls))
  """
  from django.conf.urls import include, url
  from django.contrib import admin
  from django.core.urlresolvers import reverse
  from django.views.generic.edit import CreateView
  
  from django.contrib.auth import views as auth_views
  from django.contrib.auth.forms import UserCreationForm
  
  urlpatterns = [
      url(r'^accounts/register/', CreateView.as_view(
          template_name='register.html',
          form_class=UserCreationForm,
          success_url= '/blog/'
      ), name='register'),
  	url(r'^accounts/login/', auth_views.login, {
          'template_name' : 'login.html'
      }, name='login'),
  	url(r'^accounts/logout/', auth_views.logout_then_login, name='logout'),
  	url(r'^blog/', include('blog.urls', namespace='blog')),
      url(r'^admin/', include(admin.site.urls)),
  ]
  
new_contents: """BlogApp URL Configuration
  
  The `urlpatterns` list routes URLs to views. For more information please see:
      https://docs.djangoproject.com/en/1.8/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. Add an import:  from blog import urls as blog_urls
      2. Add a URL to urlpatterns:  url(r'^blog/', include(blog_urls))
  """
  from django.conf.urls import include, url
  from django.contrib import admin
  from django.core.urlresolvers import reverse
  from django.views.generic.edit import CreateView
  from django.views.generic.base import RedirectView
  
  from django.contrib.auth import views as auth_views
  from django.contrib.auth.forms import UserCreationForm
  
  urlpatterns = [
      url(r'^$', RedirectView.as_view(pattern_name='login')),
      url(r'^accounts/register/', CreateView.as_view(
          template_name='register.html',
          form_class=UserCreationForm,
          success_url= '/blog/'
      ), name='register'),
  	url(r'^accounts/login/', auth_views.login, {
          'template_name' : 'login.html'
      }, name='login'),
  	url(r'^accounts/logout/', auth_views.logout_then_login, name='logout'),
  	url(r'^blog/', include('blog.urls', namespace='blog')),
      url(r'^admin/', include(admin.site.urls)),
  ]
  
subject: add redirect from site index to login page