manage.py

#!/usr/bin/env python
import os
import sys


SUPPORTED_ENVS = ('test', 'example')

SETTINGS_MODULES = {
    'test': 'linguist.tests.settings',
    'example': 'example.settings'
}

ENV = os.environ.get('ENV', 'test')
ENV = ENV.lower()

if ENV not in SUPPORTED_ENVS:
    raise Exception('Unsupported environment: %s' % ENV)

if __name__ == '__main__':
    os.environ.setdefault('DJANGO_SETTINGS_MODULE', SETTINGS_MODULES[ENV])
    from django.core.management import execute_from_command_line
    execute_from_command_line(sys.argv)