class Root:
    def index(self):
        sessId = cherrypy.session['id']
        cherrypy.session['sessionData'] = {'a':1, 'b':2}
        return "Hello World\n %s " % (str(cherrypy.request))
    index.exposed = True

cherrypy.root = Root()
cherrypy.config.update(file = 'tutorial.conf')
settings = { 'global': {'session_filter.storage_class': MySessionStorage } }
cherrypy.config.update(settings)
cherrypy.server.start()