Benoit Chesneau e8150e27b2 Simplify ASGI parser to always use callback mode
Remove pull-based HttpParser path and always use callback-based parsing:

- Remove HttpParser, ParseResult, FastAsyncRequest classes from parser.py
- Remove BufferReader, _handle_connection_fast(), _parse_request_fast()
- Update _setup_callback_parser() to handle auto/fast/python modes
- Fix race condition when data arrives before _handle_connection starts
- Simplify http_parser config to auto/fast/python (remove callback modes)

Parser selection for ASGI:
- auto: H1CProtocol if available, else PythonProtocol
- fast: H1CProtocol required (error if unavailable)
- python: PythonProtocol only

Reduces code by ~1150 lines while maintaining performance.
2026-03-22 02:02:03 +01:00
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
2026-01-23 01:20:03 +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

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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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