NameError：在django中找不到管理员

Question

项目的urls.py是这个

from django.conf.urls.defaults import patterns, include, url

# Uncomment the next two lines to enable the admin:
# from django.contrib import admin
# admin.autodiscover()

urlpatterns = patterns('',
    # Examples:
    # url(r'^$', 'Sdr.views.home', name='home'),
    # url(r'^Sdr/', include('Sdr.foo.urls')),

    # Uncomment the admin/doc line below to enable admin documentation:
    # url(r'^admin/doc/', include('django.contrib.admindocs.urls')),

    # Uncomment the next line to enable the admin:
    url(r'^admin/', include(admin.site.urls)),
    (r'', include('Sdr.sdr.urls')),
)

该应用的urls.py看起来像这样

# Import django modules
from django.conf.urls.defaults import *
from django.contrib import admin
# Import custom modules
import settings


admin.autodiscover()
urlpatterns = patterns('',
    url(r'^admin/', include(admin.site.urls)),
    (r'', include('Sdr.sdr.urls')),
)

我得到的错误是

的异常

Django Version: 1.3
Exception Type: NameError
Exception Value:    
name 'admin' is not defined

Answer 1

您忘记在项目的urls.py中导入admin。阅读更难。

Answer 2

在项目的urls.py中取消注释以下内容。

from django.contrib import admin

admin.autodiscover()

Answer 3

面对教程中的同样问题。 尝试添加models.py：

from django.contrib import admin