def application(self, v):
        """allow overriding of the application factory, this allows you to set
        your own application callable that will be used to handle requests, see
        bin/wsgiserver.py script as an example of usage"""
        self._application = v
        self.backend.set_app(v)
allow overriding of the application factory, this allows you to set
        your own application callable that will be used to handle requests, see
        bin/wsgiserver.py script as an example of usage