old_contents: from django.conf.urls import patterns, url
  
  urlpatterns = patterns('staff.views',
      url(r'^$', 'staff_page'),
      url(r'/gradebook$', 'get_gradebook'),
      url(r'/gradebook/(?P<statuses>\w+)$', 'gradebook_page')
  )
  
new_contents: from django.conf.urls import patterns, url
  
  urlpatterns = patterns('staff.views',
      url(r'^$', 'staff_page'),
      url(r'/gradebook/$', 'get_gradebook'),
      url(r'/gradebook/(?P<statuses>\w+)$', 'gradebook_page')
  )
  
subject: fix for urls.py