Tornado Web Server

==================

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`Tornado <http://www.tornadoweb.org>`_ is a Python web framework and

asynchronous networking library, originally developed at `FriendFeed

<http://friendfeed.com>`_. By using non-blocking network I/O, Tornado

can scale to tens of thousands of open connections, making it ideal for

`long polling <http://en.wikipedia.org/wiki/Push_technology#Long_Polling>`_,

`WebSockets <http://en.wikipedia.org/wiki/WebSocket>`_, and other

applications that require a long-lived connection to each user.

Hello, world

------------

Here is a simple "Hello, world" example web app for Tornado:

.. code-block:: python

import tornado.ioloop

import tornado.web

class MainHandler(tornado.web.RequestHandler):

def get(self):

self.write("Hello, world")

def make_app():

return tornado.web.Application([

(r"/", MainHandler),

])

if __name__ == "__main__":

app = make_app()

app.listen(8888)

tornado.ioloop.IOLoop.current().start()

This example does not use any of Tornado's asynchronous features; for

that see this `simple chat room

<https://github.com/tornadoweb/tornado/tree/stable/demos/chat>`_.

Documentation

-------------

Documentation and links to additional resources are available at

http://www.tornadoweb.org