lib/django-1.3/tests/regressiontests/admin_registration/models.py

"""
Tests for various ways of registering models with the admin site.
"""

from django.db import models

class Person(models.Model):
    name = models.CharField(max_length=200)

class Location(models.Model):
    class Meta:
        abstract = True

class Place(Location):
    name = models.CharField(max_length=200)