django/tests/auth_tests/models/proxy.py

from django.contrib.auth.models import User
from django.db import models


class Concrete(models.Model):
    pass


class Proxy(Concrete):
    class Meta:
        proxy = True
        permissions = (("display_proxys", "May display proxys information"),)


class UserProxy(User):
    class Meta:
        proxy = True
        permissions = (("use_different_app_label", "May use a different app label"),)