old_contents: from django.conf.urls import url
  
  from hut import views
  
  urlpatterns = [
      url(r'huts', views.all_huts),
      url(r'add_hut', views.add_hut),
      url(r'hut/(?P<hutname>[A-Za-z0-9]+)', views.show_hut),
      url(r'update_hut/(?P<hutname>[A-Za-z0-9]+)', views.update_hut),
      url(r'huts/(?P<mountain>[A-Za-z]+)', views.huts_by_mountain),
      url(r'huts/(?P<mountain>[A-Za-z0-9]+)/(?P<hutname>[A-Za-z0-9]+)',
          views.hut_by_name),
      url(r'huts/(?P<mountain>[A-Za-z0-9]+)/?page=n&size=l', views.page_of_huts),
      # url(r'/hut/(?P<mountain>[A-Za-z0-9]+)?query', views.huts_by_parameters),
      url(r'^$', views.home),
  ]
  
new_contents: from django.conf.urls import url
  
  from hut import views
  
  urlpatterns = [
      url(r'^huts$', views.all_huts),
      url(r'^add_hut$', views.add_hut),
      url(r'^hut/(?P<hutname>[A-Za-z0-9]+)$', views.show_hut),
      url(r'^update_hut/(?P<hutname>[A-Za-z0-9]+)$', views.update_hut),
      url(r'^huts/(?P<mountain>[A-Za-z]+)$', views.huts_by_mountain),
      url(r'^huts/(?P<mountain>[A-Za-z0-9]+)/(?P<hutname>[A-Za-z0-9]+)$',
          views.hut_by_name),
      url(r'^huts/(?P<mountain>[A-Za-z0-9]+)/?page=n&size=l$',
          views.page_of_huts),
      # url(r'/hut/(?P<mountain>[A-Za-z0-9]+)?query$', views.huts_by_parameters),
      url(r'^$', views.home),
  ]
  
subject: Update urls