old_contents: from django.conf.urls import patterns, url
  
  try:
      from account.decorators import login_required
  except ImportError:
      from django.contrib.auth.decorators import login_required
  
  from .views import (
      CancelView,
      ChangeCardView,
      ChangePlanView,
      HistoryView,
      SubscribeView
  )
  
  
  urlpatterns = patterns(
      "payments.views",
      url(r"^webhook/$", "webhook", name="payments_webhook"),
      url(r"^a/subscribe/$", "subscribe", name="payments_ajax_subscribe"),
      url(r"^a/change/card/$", "change_card", name="payments_ajax_change_card"),
      url(r"^a/change/plan/$", "change_plan", name="payments_ajax_change_plan"),
      url(r"^a/cancel/$", "cancel", name="payments_ajax_cancel"),
      url(
          r"^subscribe/$",
          login_required(SubscribeView.as_view()),
          name="payments_subscribe"
      ),
      url(
          r"^change/card/$",
          login_required(ChangeCardView.as_view()),
          name="payments_change_card"
      ),
      url(
          r"^change/plan/$",
          login_required(ChangePlanView.as_view()),
          name="payments_change_plan"
      ),
      url(
          r"^cancel/$",
          login_required(CancelView.as_view()),
          name="payments_cancel"
      ),
      url(
          r"^history/$",
          login_required(HistoryView.as_view()),
          name="payments_history"
      ),
  )
  
new_contents: from django.conf.urls import patterns, url
  
  try:
      from account.decorators import login_required
  except ImportError:
      from django.contrib.auth.decorators import login_required
  
  from .views import (
      CancelView,
      ChangeCardView,
      ChangePlanView,
      HistoryView,
      SubscribeView,
      webhook,
      subscribe,
      change_card,
      change_plan,
      cancel
  )
  
  
  urlpatterns = patterns(
      "",
      url(r"^webhook/$", webhook, name="payments_webhook"),
      url(r"^a/subscribe/$", subscribe, name="payments_ajax_subscribe"),
      url(r"^a/change/card/$", change_card, name="payments_ajax_change_card"),
      url(r"^a/change/plan/$", change_plan, name="payments_ajax_change_plan"),
      url(r"^a/cancel/$", cancel, name="payments_ajax_cancel"),
      url(
          r"^subscribe/$",
          login_required(SubscribeView.as_view()),
          name="payments_subscribe"
      ),
      url(
          r"^change/card/$",
          login_required(ChangeCardView.as_view()),
          name="payments_change_card"
      ),
      url(
          r"^change/plan/$",
          login_required(ChangePlanView.as_view()),
          name="payments_change_plan"
      ),
      url(
          r"^cancel/$",
          login_required(CancelView.as_view()),
          name="payments_cancel"
      ),
      url(
          r"^history/$",
          login_required(HistoryView.as_view()),
          name="payments_history"
      ),
  )
  
subject: Use imported views instead of lazy import