.. image:: docs/tornado.png?raw=true :alt: Tornado Web :align: center
Tornado Web Server ==================
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 _,
WebSockets _, 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
_.
Documentation -------------
Documentation and links to additional resources are available at https://www.tornadoweb.org