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Sanic

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description Sanic Overview

Sanic is an open-source Python web framework and server for building asynchronous web applications and APIs. It uses Python's async and await syntax to support non-blocking request handlers, and provides routing, middleware, listeners, WebSockets, background tasks, cookies, and extensible application components. Sanic is aimed at backend developers building network services with substantial concurrent I/O, while still offering the conventional structure of a Python web framework.

help Sanic FAQ

Does Sanic include a production-capable web server?

Yes. Sanic is both a Python web framework and a web server, and its command-line runner can launch worker processes without requiring Gunicorn.

What Python version does current Sanic require?

Current Sanic documentation specifies Python 3.10 or newer. Older descriptions mentioning Python 3.7 apply to earlier Sanic releases.

Can Sanic run as an ASGI application?

Yes. Sanic is ASGI-compliant and can run behind an ASGI-capable server, although it also ships with its own preferred server.

When would Sanic be preferable to Flask?

Sanic is designed around async request handlers and non-blocking I/O, making it useful for APIs with many concurrent network operations. Flask has a larger extension ecosystem, while Sanic provides async behavior and a scalable server as core features.

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