a simple tornado start frame.

base.py

#!/usr/bin/env python2
import os
import logging
import tornado.options
import tornado.web

from tornado.options import define, options

define("bind", default="127.0.0.1", help="addrs that debugger bind to")
define("port", default=8888, help="run on the given port")
define("config", default="", help="config file")

class Application(tornado.web.Application):
    def __init__(self):
        handlers = [
            (r"/", HomeHandler),
        ]
        settings = dict(
            blog_title=u"Tornado Example",
            template_path=os.path.join(os.path.dirname(__file__), "templates"),
            static_path=os.path.join(os.path.dirname(__file__), "static"),
            autoescape=None,
        )
        tornado.web.Application.__init__(self, handlers, **settings)


class BaseHandler(tornado.web.RequestHandler):
    application_export = set(())
    def __getattr__(self, key):
        if key in self.application_export:
            return getattr(self.application, key)
        super(BaseHandler, self).__getattr__(key)

    def render_string(self, template_name, **kwargs):
        if "options" not in kwargs:
            kwargs["options"] = options
        return super(BaseHandler, self).render_string(template_name, **kwargs)


class HomeHandler(BaseHandler):
    def get(self):
        self.write("Hello World!");

def main():
    from tornado.httpserver import HTTPServer
    tornado.options.parse_command_line()
    if options.config:
        tornado.options.parse_config_file(options.config)
    tornado.options.parse_command_line()

    http_server = HTTPServer(Application(), xheaders=True)
    http_server.bind(options.port, options.bind)
    http_server.start()

    logging.info("http server started on %s:%s" % (options.bind, options.port))
    tornado.ioloop.IOLoop.instance().start()

if __name__ == "__main__":
    main()