old_contents: from django.conf.urls import include, url
  
  from django.contrib import admin
  admin.autodiscover()
  
  import hello.views
  
  # Examples:
  # url(r'^$', 'gettingstarted.views.home', name='home'),
  # url(r'^blog/', include('blog.urls')),
  
  urlpatterns = [
      url(r'^$', hello.views.index, name='index'),
      url(r'^db', hello.views.db, name='db'),
      url(r'^admin/', include(admin.site.urls)),
      url(r'^getBookInfo/(?P<isbn>\d+)/$', hello.views.getBookInfo, name='getBookInfo'),
      url(r'^getBookRecommendations/(?P<isbn>\d+)$', hello.views.getBookRecommendations, name='getBookRecommendations'),
      url(r'^getResults/(?P<isbns>[\d,]+)$', hello.views.getResults, name='getResults'),
  ]
  
new_contents: from django.conf.urls import include, url
  
  from django.contrib import admin
  admin.autodiscover()
  
  import hello.views
  
  # Examples:
  # url(r'^$', 'gettingstarted.views.home', name='home'),
  # url(r'^blog/', include('blog.urls')),
  
  urlpatterns = [
      url(r'^$', hello.views.index, name='index'),
      url(r'^db', hello.views.db, name='db'),
      url(r'^admin/', include(admin.site.urls)),
      url(r'^getBookInfo/(?P<isbn>\d+)/$', hello.views.getBookInfo, name='getBookInfo'),
      url(r'^getBookRecommendationsWithTitle/(?P<title>[\w ]+)/$', hello.views.getBookRecommendationsWithTitle, name='getBookRecommendationsWithTitle'),
      url(r'^getBookRecommendationsWithISBN/(?P<isbn>\d+)/$', hello.views.getBookRecommendationsWithISBN, name='getBookRecommendationsWithISBN'),
      url(r'^getResults/(?P<PublicationDate>\d+),(?P<Authors>[\w ]+),(?P<Category>[\w ]+),(?P<MediaType>[\w ]+),(?P<Keywords>[\w ]+)/$', hello.views.getResults, name='getResults')
  ]
  # (?P<title>\w+)/$
  # url(r'^getBookRecommendationsWithISBN/(?P<isbn>\d+)/$', hello.views.getBookRecommendationsWithISBN, name='getBookRecommendationsWithISBN')
  
subject: Update urls.py