DATABASE_ENGINE = 'sqlite3'
DATABASE_NAME = '/tmp/postal.db'
INSTALLED_APPS = ['postal']
ROOT_URLCONF = ['postal.urls']

DEBUG=True
DATABASE_ENGINE = 'sqlite3'
DATABASE_NAME = '/tmp/postal.db'
INSTALLED_APPS = ['countries',
                  'postal',]
ROOT_URLCONF = 'postal.urls'

modify settings to include countries dependency