# gevent/gevent

Coroutine-based concurrency library for Python

Repository: https://github.com/gevent/gevent
Canonical: https://ross.abutalabs.com/products/gevent
Homepage: http://gevent.org
Language: Python
License: NOASSERTION
License Family: other
Topics: python, coroutines, greenlet, asyncio
Last push: 2026-08-10T16:54:44+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 8, longevity 100
- inputs: {"age_days": 5102, "days_push": 23, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6447, forks 964 (observed 2026-08-28T04:09:43.478216+00:00)

## What it is
gevent is a coroutine-based concurrency library for Python built on greenlets, providing a high-level synchronous API on top of libev or libuv event loops. It can monkey-patch the standard library to make blocking I/O cooperative, enabling scalable concurrent network applications.

## Use cases
- run thousands of concurrent network connections in python
- make blocking python libraries cooperative without rewriting code
- replace threads with lightweight coroutines for io-bound workloads
- build a high-performance wsgi server in python
- migrate threaded python code to async without callbacks

## When to choose
- you have io-bound python code using blocking libraries and want concurrency with minimal changes
- you want a synchronous-style api instead of asyncio's async/await
- you need a battle-tested greenlet-based concurrency solution

## When to avoid
- you are starting a new project and can use asyncio from the standard library
- you need cpu-bound parallelism rather than io-bound concurrency
- monkey-patching the standard library is unacceptable in your environment

## Facets
- artifact type: library
- maturity: stable
- function: concurrency, http-server, http-client, networking
- domain: developer-tools, backend, microservices
- platform: python, cross-platform
- tags: greenlet, coroutines, monkey-patching, async-io, high-level-networking-library

## Member repositories
- gevent/gevent (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:43.478216+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:44:40.220734+00:00, confidence not recorded.
  - readme: https://github.com/gevent/gevent (fetched 2026-08-28T04:09:43.478216+00:00, sha c9651462941d)
- Data as of 2026-08-30T08:39:29.467469+00:00.