Description

Tornado Web Server ================== .. image:: https://badges.gitter.im/Join%20Chat.svg :alt: Join the chat at https://gitter.im/tornadoweb/tornado :target: https://gitter.im/tornadoweb/tornado?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge `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 asyncio import tornado class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") def make_app(): return tornado.web.Application([ (r"/", MainHandler), ]) async def main(): app = make_app() app.listen(8888) await asyncio.Event().wait() if __name__ == "__main__": asyncio.run(main()) 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