old_contents: from django.conf.urls import url
  
  from . import views
  from .feeds import LatestPositionsFeed
  
  urlpatterns = [
      url(r'^position/(?P<source>[\w]+)/(?P<job_id>[\w]+)$', views.PositionDetailView.as_view(),
          name='careers.position'),
      url(r'^$', views.HomeView.as_view(), name='careers.home'),
      url(r'^feed/$', LatestPositionsFeed(), name='careers.feed'),
      url(r'^listings/$', views.PositionListView.as_view(), name='careers.listings'),
  ]
  
new_contents: from django.conf.urls import url
  
  from . import views
  from .feeds import LatestPositionsFeed
  
  urlpatterns = [
      url(r'^position/(?P<source>[\w]+)/(?P<job_id>[\w]+)/$', views.PositionDetailView.as_view(),
          name='careers.position'),
      url(r'^$', views.HomeView.as_view(), name='careers.home'),
      url(r'^feed/$', LatestPositionsFeed(), name='careers.feed'),
      url(r'^listings/$', views.PositionListView.as_view(), name='careers.listings'),
  ]
  
subject: Add ending slash in position URLs.