django.wsgi

import os, sys
def application(environ, start_response):
    status = '503 Service Unavailable'
    output = 'Down for maintainance. We will be back soon !'

    response_headers = [('Content-type', 'text/plain'),
                        ('Content-Length', str(len(output)))]
    start_response(status, response_headers)

    return [output]