old_contents: from django.conf.urls import include
  from django.conf.urls import url
  from django.contrib import admin
  from django.views.generic import RedirectView
  
  urlpatterns = [
      url(r'^$', RedirectView.as_view(url='/wf/list/'), name='home'),
      url(r'^admin/', admin.site.urls),
      url(r'^wf/', include('lbworkflow.urls')),
  ]
  
new_contents: from django.conf.urls import include
  from django.conf.urls import url
  from django.contrib import admin
  from django.views.generic import RedirectView
  
  urlpatterns = [
      url(r'^$', RedirectView.as_view(url='/wf/list/'), name='home'),
      url(r'^admin/', admin.site.urls),
      url(r'^wf/', include('lbworkflow.urls')),
      url(r'^attachment/', include('lbattachment.urls')),
  ]
  
subject: add lbattachment to url