Tornado is a Python web framework and asynchronous networking library, originally developed at Frien...
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_ is a Python web framework and asynchronous networking library, originally developed at
. 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\>,
_, 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<https:></https:>
Documentation and links to additional resources are available at https://www.tornadoweb.org