Fixed #8247: Added explanation to admin docs to point out that AdminSite can...

              list_display = (upper_case_name,)

    * A string representing an attribute on the ``ModelAdmin``. This behaves

      the same as the callable. For example::

 same as the callable. For example::

          class PersonAdmin(admin.ModelAdmin):

              list_display = ('upper_case_name',)

``AdminSite`` objects

=====================

A Django administrative site is represented by an instance of

``django.contrib.admin.sites.AdminSite``; by default, an instance of

this class is created as ``django.contrib.admin.site`` and you can

register your models and ``ModelAdmin`` instances with it.

If you'd like to set up your own administrative site with custom

behavior, however, you're free to subclass ``AdminSite`` and override

or add anything you like. Then, simply create an instance of your

``AdminSite`` subclass (the same way you'd instantiate any other

Python class), and register your models and ``ModelAdmin`` subclasses

with it instead of using the default.

Hooking ``AdminSite`` instances into your URLconf

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