old_contents: from django.urls import path
  
  from licenses.views import *
  
  
  urlpatterns = [
      path('', license_index, name='license_index'),
      path('available/<key>)/', available),
      path('available/<key>/<item_name>/', available),
      path('usage/<key>/', usage),
      path('usage/<key>/<item_name>/', usage),
      path('edit/<license_id>/', edit_license, name='edit_license'),
      path('delete/<license_id>/', delete_license, name='delete_license'),
      path('new/', new_license, name='new_license'),
  ]
  
new_contents: from django.urls import path
  
  from licenses.views import *
  
  
  urlpatterns = [
      path('', license_index, name='license_index'),
      path('available/<key>/', available),
      path('available/<key>/<item_name>/', available),
      path('usage/<key>/', usage),
      path('usage/<key>/<item_name>/', usage),
      path('edit/<license_id>/', edit_license, name='edit_license'),
      path('delete/<license_id>/', delete_license, name='delete_license'),
      path('new/', new_license, name='new_license'),
  ]
  
subject: Fix typo in urls for /licenses/available/<key>/