tornado

Decorators vs. classes in python web development

孤人 提交于 2019-12-20 22:58:47
问题 I've noticed three main ways Python web frameworks deal request handing: decorators, controller classes with methods for individual requests, and request classes with methods for GET/POST. I'm curious about the virtues of these three approaches. Are there major advantages or disadvantages to any of these approaches? To fix ideas, here are three examples. Bottle uses decorators: @route('/') def index(): return 'Hello World!' Pylons uses controller classes: class HelloController(BaseController)

How to stop the tornado web server with ctrl+c?

主宰稳场 提交于 2019-12-20 18:09:27
问题 I am new to tornado web server. When I start the tornado web server using python main_tornado.py It is working. Please see the below code. import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") application = tornado.web.Application([ (r"/", MainHandler), ]) if __name__ == "__main__": application.listen(8888) tornado.ioloop.IOLoop.instance().start() When I stop the server using CTRL+C it gave the following error.

How to stop the tornado web server with ctrl+c?

有些话、适合烂在心里 提交于 2019-12-20 18:09:22
问题 I am new to tornado web server. When I start the tornado web server using python main_tornado.py It is working. Please see the below code. import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") application = tornado.web.Application([ (r"/", MainHandler), ]) if __name__ == "__main__": application.listen(8888) tornado.ioloop.IOLoop.instance().start() When I stop the server using CTRL+C it gave the following error.

What is the proper way to handle Redis connection in Tornado ? (Async - Pub/Sub)

不羁的心 提交于 2019-12-20 14:42:30
问题 I am using Redis along with my Tornado application with asyc client Brukva, when I looked at the sample apps at Brukva site they are making new connection on " init " method in websocket class MessagesCatcher(tornado.websocket.WebSocketHandler): def __init__(self, *args, **kwargs): super(MessagesCatcher, self).__init__(*args, **kwargs) self.client = brukva.Client() self.client.connect() self.client.subscribe('test_channel') def open(self): self.client.listen(self.on_message) def on_message

Using Tornado with Pika for Asynchronous Queue Monitoring

你离开我真会死。 提交于 2019-12-20 12:41:05
问题 I have an AMQP server (RabbitMQ) that I would like to both publish and read from in a Tornado web server. To do this, I figured I would use an asynchronous amqp python library; in particular Pika (a variation of it that supposedly supports Tornado). I have written code that appears to successfully read from the queue, except that at the end of the request, I get an exception (the browser returns fine): [E 101219 01:07:35 web:868] Uncaught exception GET / (127.0.0.1) HTTPRequest(protocol='http

Retrieve browser headers in Python

老子叫甜甜 提交于 2019-12-20 12:25:57
问题 I'm currently drawing a blank as how to get the current browser header information for a user in Python Tornado? For example, in PHP you'd simple view the $_SERVER data. What is Tornado's alternative? Note: How do I get the client IP of a Tornado request? and the "request" does not work for me. 回答1: Here's a snippet based off of a server I have where we retrieve some header data from the request: class api(tornado.web.RequestHandler): def initialize(self, *args, **kwargs): self.remote_ip =

REMOTE_ADDR not getting sent to Django using nginx & tornado

核能气质少年 提交于 2019-12-20 10:23:48
问题 So I got a simple setup with nginx for static media and load balancing and tornado as webserver for django (4 servers running). My problem is remote_addr not getting passed on to django so I'm getting a KeyError: article.ip = request.META['REMOTE_ADDR'] The remote address is getting sent through as X-Real-IP (HTTP_X_REAL_IP) thanks to the nginx.conf: location / { proxy_pass_header Server; proxy_set_header Host $http_host; proxy_redirect false; proxy_set_header X-Real-IP $remote_addr; proxy

is there a better way to handle index.html with Tornado?

非 Y 不嫁゛ 提交于 2019-12-20 09:37:28
问题 I want to know if there is a better way to handle my index.html file with Tornado. I use StaticFileHandler for all the request,and use a specific MainHandler to handle my main request. If I only use StaticFileHandler I got a 403: Forbidden error GET http://localhost:9000/ WARNING:root:403 GET / (127.0.0.1): is not a file here how I doing now: import os import tornado.ioloop import tornado.web from tornado import web __author__ = 'gvincent' root = os.path.dirname(__file__) port = 9999 class

How to create HTTPS tornado server

旧时模样 提交于 2019-12-20 08:41:44
问题 Please help me to create HTTPS tornado server My current code Python3 doesn't work import os, socket, ssl, pprint, tornado.ioloop, tornado.web, tornado.httpserver from tornado.tcpserver import TCPServer class getToken(tornado.web.RequestHandler): def get(self): self.write("hello") application = tornado.web.Application([ (r'/', getToken), ]) # implementation for SSL http_server = tornado.httpserver.HTTPServer(application) TCPServer(ssl_options={ "certfile": os.path.join("/var/pyTest/keys/",

How to handle the dict of parms in tornado?

拟墨画扇 提交于 2019-12-20 04:57:15
问题 I am new to tornado framework.When I open the url http://www.sample.com/index.html?roomid=1&presenterid=2 the tornado.web.RequestHandler need to handle the dict of parms. Please see the below code, class MainHandler(tornado.web.RequestHandler): def get(self, **kwrgs): self.write('I got the output ya') application = tornado.web.Application([ (r"/index.html?roomid=([0-9])&presenterid=([0-9])", MainHandler), ]) My question is how to write the regular expression url ? 回答1: Query string parameters