Django新手和教程

Question

我是一个完整的Django新手，我正在学习本教程：

https://docs.djangoproject.com/en/1.11/intro/tutorial01/

我已经登台了：

from django.conf.urls import include, url
from django.contrib import admin

urlpatterns = [
url(r'^polls/', include('polls.urls')),
url(r'^admin/', admin.site.urls),
]

在mysite/urls.py中，但当我这样做时：

python manage.py runserver

我在地址的浏览器中有404错误。

http://localhost:8000/polls/

我使用python 2.7.6和Django 1.11.5

我的urls.py是

from django.conf.urls import include, url
from django.contrib import admin

urlpatterns = [
    url(r'^polls/', include('polls.urls')),
    url(r'^admin/', admin.site.urls),
]

在终端会话中我得到

Not Found: /polls/
[05/Oct/2017 12:25:22] "GET /polls/ HTTP/1.1" 404 1951

当我在浏览器中加载网页时

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'polls',
]

谁能指出可能出了什么问题吗？

Answer 1

关于mysite/settings.py在INSTALLED_APPS中添加

INSTALLED_APPS = [
    ...<other installed apps>..
    'polls',
]

对于django最新版本，可以添加：

INSTALLED_APPS = [
    ...<other installed apps>..
    'polls.apps.PollsConfig',
]

放入mysite/urls.py(您在这里发布的那个)：

from django.conf.urls import include, url
from django.contrib import admin    
urlpatterns = [
    url(r'^polls/', include('polls.urls')),
    url(r'^admin/', admin.site.urls),
]

在polls/urls.py中：

from django.conf.urls import url
from . import views    
urlpatterns = [
    url(r'^$', views.index, name='index'),
]

Answer 2

对于有此问题的初学者，请按照教程这里明确回答，项目根URLconf与settings.py位于同一个文件夹中，即：

mysite/mysite/urls.py

只要确保import 'include'。代码看起来像：

from django.conf.urls import include, url
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^polls/', include('polls.urls')),
]

所以在mysite/mysite/setings.py中：

这一行应是：

ROOT_URLCONF = 'mysite.urls'

您不需要创建一个新的根URLconf。