old_contents: from django.conf.urls import url
  
  from . import views
  
  urlpatterns = [
      url(r'^$', views.index, name='index'),
      url(r'^maschinensaegeblatt/$', views.sawblades, name='sawblades'),
      url(r'^maschinensaegeblatt/(?P<clamping>[\w-]+)/(?P<slug>[\w-]+)/$', views.sawblade, name='sawblade'),
  ]
new_contents: # -*- coding: utf-8 -*-
  from django.conf.urls import url
  
  from . import views
  
  urlpatterns = [
      url(r'^$', views.index, name='index'),
      url(r'^maschinensaegeblatt/$', views.sawblades, {'title': "Maschinensägeblätter"}, name='sawblades'),
      url(r'^maschinensaegeblatt/(?P<clamping>[\w-]+)/(?P<slug>[\w-]+)/$', views.sawblade, name='sawblade'),
  ]
subject: Define new urls