old_contents: from django.conf.urls import patterns
  
  
  urlpatterns = patterns(
      'buysafe.views',
      (r'^entry/(?P<order_id>\d+)/$', 'entry'),
      (r'^start/$', 'start'),
      (r'^success/(?P<payment_type>[01])/$', 'success'),
      (r'^fail/(?P<payment_type>[01])/$', 'fail'),
      (r'^check/(?P<payment_type>[01])/$', 'check')
  )
  
new_contents: from django.conf.urls import patterns, url
  
  
  urlpatterns = patterns(
      'buysafe.views',
      url(r'^entry/(?P<order_id>\d+)/$', 'entry', name='buysafe_pay'),
      (r'^start/$', 'start'),
      (r'^success/(?P<payment_type>[01])/$', 'success'),
      (r'^fail/(?P<payment_type>[01])/$', 'fail'),
      (r'^check/(?P<payment_type>[01])/$', 'check')
  )
  
subject: Add name for entry view URL