Django中INSTALLED_APPS顺序的重要性

用Django自带的用户认证框架，新建app_name为account，创建models和form表单后， account下的 urls.py 如下所示:

from django.conf.urls import url
from . import views
from django.contrib.auth.views import login
from django.contrib.auth.views import logout
# ...


urlpatterns = [
    url(r'^login/$', login, name='login'),
    url(r'^logout/$', logout, name='logout'),
    # ...
]

创建 registration/login.html 和 registration/logged_out.html 模板。

运行后发现logout一直后跳转至Django后台的注销界面：

debug许久之后无果，翻阅Django官方文档后发现：

When several applications provide different versions of the same resource (template, static file, management command, translation), the application listed first in INSTALLED_APPS has precedence.

就是说当多个APP提供了不同的版本的相同资源时,INSTALLED_APPS前面的APP具有优先权。

将account放在 django.contrib.admin 前面:

INSTALLED_APPS = [
    # ...
    'account',
    'django.contrib.admin',
    # ...
]

问题解决~