Tornado is a Python web framework and asynchronous networking library, originally developed at Frien...
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Tornado_ is a Python web framework and asynchronous networking library, originally developed at
FriendFeed. 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/Pushtechnology#LongPolling>`,
WebSockets_, and other applications that require a long-lived connection to each user.
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_.
Documentation and links to additional resources are available at https://www.tornadoweb.org