Tornado

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On the record

Async integration

Tornado shares the standard-library asyncio event loop by default, and asyncio-designed libraries can generally be mixed with it.tornadoweb.org · read 7 Oct 2026

Authentication integrations

The tornado.auth module supports authentication and authorization protocols for services including Google/Gmail, Facebook, Twitter, and FriendFeed.tornadoweb.org · read 7 Oct 2026

Components

Tornado includes a web framework, client- and server-side HTTP implementations, and an asynchronous networking library.tornadoweb.org · read 7 Oct 2026

Cookie security detail

Signed cookies provide integrity but not confidentiality, so their contents remain visible to users.tornadoweb.org · read 7 Oct 2026

Deployment

Tornado supplies its own HTTPServer and is started by running an application entry point that starts the server.tornadoweb.org · read 7 Oct 2026

License

Tornado is available under the Apache License, Version 2.0.tornadoweb.org · read 7 Oct 2026

Linux and macOS

Tornado is designed for Unix-like platforms and performs best on systems with epoll, kqueue, or /dev/poll support.tornadoweb.org · read 7 Oct 2026

Long connections

Its non-blocking network I/O can scale to tens of thousands of open connections, supporting use cases such as long polling and WebSockets.tornadoweb.org · read 7 Oct 2026

Security features

Tornado supports signed cookies and includes built-in cross-site request forgery protection that can be enabled with the xsrf_cookies setting.tornadoweb.org · read 7 Oct 2026

Support

The project directs users to its developer mailing list for discussion and its GitHub issue tracker for bug reports.tornadoweb.org · read 7 Oct 2026

What it is

Tornado is a Python web framework and asynchronous networking library.tornadoweb.org · read 7 Oct 2026

Windows limitation

Tornado runs on Windows, but Windows is not officially supported or recommended for production, and some features such as multi-process mode are missing.tornadoweb.org · read 7 Oct 2026

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