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
https://www.tornadoweb.org