Tornado (web server)
Introduction '''Tornado''' is a scalable, non-blocking web server and web application framework written in Python. It was developed for use by FriendFeed; the company was acquired by Facebook in 2009 and Tornado was open-sourced soon after.
Performance Tornado is noted for its high performance. Its design enables handling a large number of concurrent connections (i.e., tries to solve the "C10k problem").
Modules * An asynchronous MongoDB driver called Motor. * CouchDB drivers called corduroy and trombi. * Asynchronous driver for PostgreSQL wrapping psycopg called Momoko
Example The following code shows a simple web application that displays "Hello World!" when visited:import asyncioimport tornado.webclass 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())
See also * Django (web framework)* FastAPI* Flask (web framework)* Jam.py* Pylons project* Web2py* Comparison of web server software
References
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