old_contents: from django.conf.urls import *
  
  urlpatterns = patterns('punchclock.views',
                         (r'^', 'home'),
                         )
  
new_contents: from django.conf.urls import *
  
  urlpatterns = patterns('punchclock.views',
                         url(r'^$', 'home'),
                         )
  
subject: Update urls.py.