Django を使用して Excel コードをエクスポートする方法の問題

"""export_excel URL Configuration 
 
 
The `urlpatterns` list routes URLs to views. For more information please see: 
  https://docs.djangoproject.com/en/1.10/topics/http/urls/ 
Examples: 
Function views 
  1. Add an import: from my_app import views 
  2. Add a URL to urlpatterns: url(r'^$', views.home, name='home') 
Class-based views 
  1. Add an import: from other_app.views import Home 
  2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home') 
Including another URLconf 
  1. Import the include() function: from django.conf.urls import url, include 
  2. Add a URL to urlpatterns: url(r'^blog/', include('blog.urls')) 
""" 
from django.conf.urls import url 
from django.contrib import admin 
from django.views.generic import ListView 
 
 
from .models import ExcelDemoData 
from . import views 
 
 
urlpatterns = [ 
  url(r'^admin/', admin.site.urls), 
  url(r'^$', ListView.as_view(queryset = ExcelDemoData.objects.all().defer('id', 'part_number').order_by('id')[:100], template_name="part_num_list.html"), name = 'home'), 
  url(r'^demo/exportall/$', views.export_all_to_excel, name = 'export_all_to_excel'), 
]