old_contents: """wef 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 wef.views import *
  from users.views import *
  from items.views import *
  
  urlpatterns = [
      url(r'^admin/', admin.site.urls),
  
      url(r'^$', home, name='home'),
  
      url(r'^joinus/$', join_us, name='join_us'),
      url(r'^login/$', LogInView.as_view(), name='log_in'),
      url(r'^logout/$', LogOutView.as_view(), name='log_out'),
  
      url(r'^booksale/$', BookSale.as_view(), name='booksale'),
      url(r'^booksale/(?P<pk>\d+)/$', PostDetail.as_view(), name='postdetail'),
  
      url(r'^aftersocial/$', AfterSocial.as_view(), name='aftersocial'),
  
      url(r'', include('social.apps.django_app.urls', namespace='social'))
  ]
  
new_contents: """wef 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 wef.views import *
  from users.views import *
  from items.views import *
  from items.api.views import *
  
  urlpatterns = [
      url(r'^admin/', admin.site.urls),
  
      url(r'^$', home, name='home'),
  
      url(r'^joinus/$', join_us, name='join_us'),
      url(r'^login/$', LogInView.as_view(), name='log_in'),
      url(r'^logout/$', LogOutView.as_view(), name='log_out'),
  
      url(r'^booksale/$', BookSale.as_view(), name='booksale'),
      url(r'^booksale/(?P<pk>\d+)/$', PostDetail.as_view(), name='postdetail'),
  
      url(r'^api/(?P<pk>\d+)/soldout/$', BookListAPIView.as_view(), name='booklistapi'),
  
      url(r'^aftersocial/$', AfterSocial.as_view(), name='aftersocial'),
  
      url(r'', include('social.apps.django_app.urls', namespace='social')),
  ]
  
subject: update : add APIview url