[source lang=”python”]
import tornado.ioloop
import tornado.httpserver
import tornado.options
import tornado.web
import tornado.process
import json
from tornado.web import RequestHandler
from tornado.web import traceback
def write_error(self, status_code, **kwargs):
print "enter into write_error"
self.set_header("Content-Type", "application/json")
res = {"code": status_code, "value": "Server Internal Error"}
if status_code == 404:
res["value"] = "Not Found"
self.write(json.dumps(res))
self.finish()
setattr(RequestHandler, ‘write_error’, write_error)
class IndexHandle(tornado.web.RequestHandler):
def get(self):
self.write("Hello World")
return
if __name__ == "__main__":
tornado.options.parse_command_line()
# tornado.process.fork_processes(2)
__app__=tornado.web.Application(handlers=[(r’/’, IndexHandle)], debug=True)
__http_server__=tornado.httpserver.HTTPServer(__app__)
__http_server__.listen(8002)
tornado.ioloop.IOLoop.instance().start()
[/source]