使用Django實現自定義404，500頁面的方法

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = False
ALLOWED_HOSTS = ['localhost','www.example.com', '127.0.0.1']
TEMPLATES = [
 {
 'BACKEND': 'django.template.backends.django.DjangoTemplates',
 'DIRS': [os.path.join(BASE_DIR, 'templates')],
 'APP_DIRS': True,
 'OPTIONS': {
 'context_processors': [
 'django.template.context_processors.debug',
 'django.template.context_processors.request',
 'django.contrib.auth.context_processors.auth',
 'django.contrib.messages.context_processors.messages',
 ],
 },
 },
]

from django.http import HttpResponse
from django.shortcuts import render_to_response
from django.views.decorators.csrf import csrf_exempt
@csrf_exempt
def hello(request):
 return HttpResponse('Hello World!')
@csrf_exempt
def page_not_found(request):
 return render_to_response('404.html')
@csrf_exempt
def page_error(request):
 return render_to_response('500.html')

from django.conf.urls import url
from django.contrib import admin
import HelloWorld.views as view
urlpatterns = [
 url(r'^admin/', admin.site.urls),
 url(r'^test$', view.hello),
]
handler404 = view.page_not_found
handler500 = view.page_error