old_contents: from django.conf.urls import patterns, url
  
  from main import views
  
  urlpatterns = patterns(
      '',
      url(r'^parse$', views.parse, name='parse'),
      url(r'^reading$', views.reading, name='reading'),
  )
  
new_contents: from django.conf.urls import url
  
  from main import views
  
  urlpatterns = [
      url(r'^parse$', views.parse, name='parse'),
      url(r'^reading$', views.reading, name='reading'),
  ]
  
subject: Update urls.py