Routes Dispatcher example not working in Cherrypy
===

I tried the Routes Dispatcher example in cherrypy essentials but its not working. its give me `Page not found` error.What am i missing?

    import cherrypy
    class Root:
        def index(self):
            return "Not much to say"
        def hello(self, name):
            return "Hello %s" % name
        if __name__ == '__main__':
            root = Root()
            # Create an instance of the dispatcher
            d = cherrypy.dispatch.RoutesDispatcher()
            # connect a route that will be handled by the 'index' handler
            d.connect('default_route', '', controller=root)
            # connect a route to the 'hello' handler
            # this will match URIs such as '/say/hello/there'
            # but not '/hello/there'
            d.connect('some_other', 'say/:action/:name',
            controller=root, action='hello')
            # set the dispatcher
            conf = {'/': {'request.dispatch': d}}
            cherrypy.quickstart(root, '/', config=conf)

