Tornado is a scalable, non-blocking web framework and asynchronous networking library for Python, designed to handle long-lived network connections with high concurrency. It is ideal for building real-time web applications and services, offering excellent performance for I/O-bound tasks.

Features of Tornado:

• Non-blocking, asynchronous networking for handling thousands of concurrent connections.
• Built-in support for WebSockets, long polling, and other real-time communication protocols.
• Efficient handling of I/O-bound operations, including file, database, and network tasks.
• Provides both high-level and low-level APIs for flexibility in web application design.

To check the installed Tornado version, run: python -c "import tornado; print(tornado.version)"

Disclaimer: Tornado is an open-source project developed and maintained by the community. It is suitable for both small-scale and large-scale applications. As the project is actively developed, users are encouraged to check the repository for updates, issues, and contributions.