text: from django.conf.urls import url
  
  from . import views
  
  app_name = 'concerts'
  urlpatterns = [
      url(r'^$', views.UpcomingShows.as_view(), name='upcoming_shows'),
      url(r'^artists/$', views.ArtistsIndex.as_view(), name='artists'),
      url(r'^venues/$', views.VenuesIndex.as_view(), name='venues'),
      url(r'^all/$', views.ConcertsIndex.as_view(), name='all_concerts'),
  ]