解决方法
您可以访问Model-> ModelAdmin的admin.site._registry dict：
>>> ./manage.py shell
In [1]: from urls import * # load admin
In [2]: from django.contrib import admin
In [3]: admin.site._registry
Out[3]:
{django.contrib.auth.models.Group: <django.contrib.auth.admin.GroupAdmin at 0x22629d0>,django.contrib.auth.models.User: <django.contrib.auth.admin.UserAdmin at 0x2262a10>,django.contrib.sites.models.Site: <django.contrib.sites.admin.SiteAdmin at 0x2262c90>,testapp.models.Up: <django.contrib.admin.options.ModelAdmin at 0x2269c10>,nashvegas.models.Migration: <nashvegas.admin.MigrationAdmin at 0x2262ad0>}
这是管理员索引视图的作用：
@never_cache
def index(self,request,extra_context=None):
"""
Displays the main admin index page,which lists all of the installed
apps that have been registered in this site.
"""
app_dict = {}
user = request.user
for model,model_admin in self._registry.items():
# ...
请注意,以下划线为前缀的变量可能会在将来的django版本中发生更改.