old_contents: from django.conf.urls.defaults import *
  
  urlpatterns = patterns('smart_selects.views',
      url(r'^all/(?P<app>[\w\-]+)/(?P<model>[\w\-]+)/(?P<field>[\w\-]+)/(?P<value>[\w\-]+)/$', 'filterchain_all', name='chained_filter_all'),
      url(r'^filter/(?P<app>[\w\-]+)/(?P<model>[\w\-]+)/(?P<field>[\w\-]+)/(?P<value>[\w\-]+)/$', 'filterchain', name='chained_filter'),
      url(r'^filter/(?P<app>[\w\-]+)/(?P<model>[\w\-]+)/(?P<manager>[\w\-]+)/(?P<field>[\w\-]+)/(?P<value>[\w\-]+)/$', 'filterchain', name='chained_filter'),
  )
  
new_contents: try:
      from django.conf.urls.defaults import *
  except ImportError:
      from django.conf.urls import *
  
  urlpatterns = patterns('smart_selects.views',
      url(r'^all/(?P<app>[\w\-]+)/(?P<model>[\w\-]+)/(?P<field>[\w\-]+)/(?P<value>[\w\-]+)/$', 'filterchain_all', name='chained_filter_all'),
      url(r'^filter/(?P<app>[\w\-]+)/(?P<model>[\w\-]+)/(?P<field>[\w\-]+)/(?P<value>[\w\-]+)/$', 'filterchain', name='chained_filter'),
      url(r'^filter/(?P<app>[\w\-]+)/(?P<model>[\w\-]+)/(?P<manager>[\w\-]+)/(?P<field>[\w\-]+)/(?P<value>[\w\-]+)/$', 'filterchain', name='chained_filter'),
  )
  
subject: fix compatibility issue with Django 1.6