old_contents: from django.apps import AppConfig
  from django.utils.translation import ugettext_lazy as _
  from django.contrib.admin.apps import AdminConfig
  
  
  class HelusersConfig(AppConfig):
      name = 'helusers'
      verbose_name = _("Helsinki Users")
  
  
  class HelusersAdminConfig(AdminConfig):
      default_site = 'helusers.admin.AdminSite'
  
new_contents: from django.apps import AppConfig
  from django.utils.translation import ugettext_lazy as _
  from django.contrib.admin.apps import AdminConfig
  
  
  class HelusersConfig(AppConfig):
      name = 'helusers'
      verbose_name = _("Helsinki Users")
  
  
  class HelusersAdminConfig(AdminConfig):
      default_site = 'helusers.admin_site.AdminSite'
  
subject: Fix wrong path for helusers AdminSite