###
# urls.py
###

import os

import django

...

admin_media_url = settings.ADMIN_MEDIA_PREFIX.lstrip('/') + '(?P<path>.*)$'
admin_media_path = os.path.join(django.__path__[0], 'contrib', 'admin', 'media')

urlpatterns = patterns('',
    url(r'^admin/', include(admin.site.urls)),
    url(r'^' + admin_media_url , 'django.views.static.serve', {
        'document_root': admin_media_path,
    }, name='admin-media'),
    ...
)