Benoit Chesneau 8e25cb2400 fix: tighten keepalive gate and scope finish_body byte cap
- ASGI keepalive gate now keys on receiver._complete only. _closed is
  overloaded across transport disconnect and receive timeout; treating
  either as 'message complete' would re-enable the smuggling vector
  the previous PR was meant to close.
- Parser.finish_body's 64 KiB byte cap now applies only when an explicit
  deadline is given. Default invocations (notably __next__, used by
  base_async / sync workers) regain the prior unbounded drain so a
  partial drain does not silently desync the next request.
2026-05-03 18:37:45 +02:00
2026-02-06 08:21:18 +01:00
2026-01-23 01:20:03 +01:00
2026-02-06 08:21:18 +01:00
2026-01-27 09:46:42 +01:00
2026-02-06 08:21:18 +01:00
2026-03-24 23:21:23 +01:00

Gunicorn

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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

Support

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License

Gunicorn is released under the MIT License. See the LICENSE file for details.

Description
gunicorn 'Green Unicorn' is a WSGI HTTP Server for UNIX, fast clients and sleepy applications.
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