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e90b1c2c1e
- WSGI fast parser now applies the same per-header policy as the Python parser (Expect, secure_scheme_headers, forwarded_allow_ips trust gate, forwarder_headers / header_map). Shared helpers extracted on Message. - ASGI keepalive no longer resets the parser when the previous request body was not fully framed; the connection closes instead, preventing request smuggling on pipelined connections. - BodyReceiver._wait_for_data timeout flips _closed and yields http.disconnect rather than synthesizing more_body=False. Timeout honors cfg.timeout. - ASGI chunked encoding now skips HEAD, 204, and 304 (matches Response.is_chunked in the WSGI path) via a small helper. - _setup_callback_parser passes proxy_protocol to PythonProtocol; auto falls back to the Python parser when proxy_protocol != off (the C parser does not implement PROXY framing). _effective_peername swaps the transport peer with the PROXY-supplied client address. - Parser.finish_body accepts a deadline and a 64KiB byte cap; gthread passes a deadline and abandons keepalive on incomplete drain so a stalled client cannot tie up a worker thread.
Gunicorn
Gunicorn is maintained by volunteers. If it powers your production, please consider supporting us:
Gunicorn 'Green Unicorn' is a Python WSGI HTTP Server for UNIX. It's a pre-fork worker model ported from Ruby's Unicorn project. The Gunicorn server is broadly compatible with various web frameworks, simply implemented, light on server resource usage, and fairly speedy.
New in v25: Per-app worker allocation for dirty arbiters, HTTP/2 support (beta)!
Quick Start
pip install gunicorn
gunicorn myapp:app --workers 4
For ASGI applications (FastAPI, Starlette):
gunicorn myapp:app --worker-class asgi
Features
- WSGI support for Django, Flask, Pyramid, and any WSGI framework
- ASGI support for FastAPI, Starlette, Quart
- HTTP/2 support (beta) with multiplexed streams
- Dirty Arbiters (beta) for heavy workloads (ML models, long-running tasks)
- uWSGI binary protocol for nginx integration
- Multiple worker types: sync, gthread, gevent, eventlet, asgi
- Graceful worker process management
- Compatible with Python 3.9+
Documentation
Full documentation at https://gunicorn.org
Community
- Report bugs on GitHub Issues
- Chat in #gunicorn on Libera.chat
- See CONTRIBUTING.md for contribution guidelines
Support
Powering Python apps since 2010. Support continued development.
Sponsors
License
Gunicorn is released under the MIT License. See the LICENSE file for details.