tornado-write-json.py

import tornado.ioloop
import tornado.web
 
# http://www.tornadoweb.org/en/stable/options.html
from tornado.options import parse_command_line, define, options
 
define("port", default=8888)
define("debug", default=False)
 
class MainHandler(tornado.web.RequestHandler):
    def get(self):
        # http://www.tornadoweb.org/en/branch3.1/web.html#tornado.web.RequestHandler.write
        self.write({"directives": [(1, "serve the public trust"),
                                   (2, "protect the innocent"),
                                   (3, "uphold the law"),
                                   (4, "classified")]})
 
 
handlers = [
    (r"/", MainHandler),
]
 
if __name__ == "__main__":
    parse_command_line()
    
    application = tornado.web.Application(handlers, debug=options.debug)
    application.listen(options.port)
    
    tornado.ioloop.IOLoop.instance().start()