在Django中添加路径以创建更多视图

我正在跟踪 tutorial 在Django网站上。我尝试复制以下内容:

我的代码如下:

意见。py公司

# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.shortcuts import render

# Create your views here.
from django.http import HttpResponse


def index(request):
    return HttpResponse("Hello, world. You're at the polls index.")

def detail(request, film_id):
    return HttpResponse("You're looking at film %s." % film_id)

def results(request, film_id):
    response = "You're looking at the results of film %s."
    return HttpResponse(response % question_id)

def vote(request, film_id):
    return HttpResponse("You're commenting on film %s." % film_id)

电影/URL。py公司

from django.conf.urls import url
from django.urls import path
from . import views

urlpatterns = [
    # url(r'^$', views.index, name='index'),
    # ex: /polls/
    path('', views.index, name='index'),
    # ex: /films/5/
    path('<int:film_id>/', views.detail, name='detail'),
    # ex: /films/5/results/
    path('<int:film_id>/results/', views.results, name='results'),
    # ex: /films/5/vote/
    path('<int:film_id>/vote/', views.vote, name='vote'),
]

有了这个,我得到了ERR\u CONNECTION\u拒绝。如果我注释掉所有路径,只留下索引url,并注释掉 from django.urls import path 将显示一个页面,但这就是我在尝试添加更多视图之前所处的位置。