colesbury/nogil
Multithreaded Python without the GIL observed · 2026-08-28
Health v2 · maintenance only
10/100
- Activity 22
- Release rhythm 8
- Longevity 100
Flags: archived no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 1792
- days_rel: n/a
- days_push: 470
- n_releases_24m: 0
Adoption not part of the score
2911 stars · 102 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A proof-of-concept fork of CPython that removes the global interpreter lock (GIL) to enable true multithreaded Python execution. Development has ended in favor of the official free-threaded builds of Python 3.13+ (PEP 703).
Use cases
- run python threads in parallel without the gil
- test cpu-bound multithreaded python code
- benchmark gil-free cpython performance
- research the design of a gil-less python interpreter
When to choose
- you need to study the original no-GIL design that informed PEP 703
- you are on legacy Python versions and want to experiment with GIL removal
When to avoid
- you want production GIL-free Python - use the free-threaded build of Python 3.13+
- you need an actively maintained interpreter
- you need guaranteed stability or official support
Facets
library · maturity abandoned
concurrency interpreter programming-language programming-languages developer-tools performance python windows gil free-threading cpython-fork multithreading proof-of-concept linux macos
1 source
- readme: https://github.com/colesbury/nogil · fetched 2026-08-28 · 203bc1fda33c
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| colesbury/nogil | main | 10 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem