old_contents: from django.conf.urls import url
  
  import lbworkflow
  
  
  urlpatterns = [
      url(r'^wf/', lbworkflow.urls),
  ]
  
new_contents: from django.conf.urls import url
  from django.conf.urls import include
  
  
  urlpatterns = [
      url(r'^wf/', include('lbworkflow.urls')),
  ]
  
subject: fix url config