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Agents tracked: 440 Downloads (7d): 202M down 19.5% GitHub stars: 10.4M Releases (7d): 607 Agent status: all upSince last limit reset: Claude 28d · Codex 0d Updated Oct 21, 2026

fastrlock

Fast re-entrant optimistic lock implemented in Cython for concurrency.

Utilities PyPI MIT

Used in agent projects
1
0.1% of 1,622 Python repos built with AI coding agents; 49 counting our dependency samples
Gid Score
33 /100
#3230 of 3,794 tools, #337 in utilities · ranking
Rank in utilities
#265 of 361
by use in those projects
Downloads
167K
PyPI, last 7 days, fastrlock
GitHub stars
36
12 forks · last push Oct 19, 2026

How fastrlock is used

fastrlock is a dependency in 1 of the 6,208 public GitHub projects set up for AI coding agents that we scanned, too few to describe it from them alone. Our scan also samples projects by dependency (Solana 2,661, Ethereum and EVM 1,496, 3D and games 2,818, agent frameworks and SDKs 10,983); counting those, it appears in 49 projects, and what it is used with below comes from all of them. Projects that use it most often also use NumPy (98.0%), attrs (95.9%), cachetools (95.9%).

fastrlock popularity over time

Top tools by Gid Score

fastrlock: downloads per weekPyPI, fastrlock 161,143
fastrlock: GitHub starsscoder/fastrlock 36

Gid Score 33: downloads 47, use in agent projects 40, GitHub stars 0, downloads trend 44 (each 0-100). How it is calculated.

Often used with fastrlock

NumPy98.0% of fastrlock projects · 16.8× more than average
attrs95.9% of fastrlock projects · 138.5× more than average
cachetools95.9% of fastrlock projects · 170.1× more than average
Click95.9% of fastrlock projects · 38.4× more than average
Jinja295.9% of fastrlock projects · 44.1× more than average
jsonschema95.9% of fastrlock projects · 59.0× more than average

From all 49 projects in our scan that use fastrlock, including the dependency samples.

How fastrlock is funded

Most funded tools

GitHub Sponsors

@scoder23 current sponsors

GitHub shows how many people and companies sponsor an account, not how much they pay. Sponsors of a person back all of their work, which here includes lxml, Cython, Lupa.

Ways to fund fastrlock

GitHub Sponsors

As the maintainers list them in FUNDING.yml on GitHub. Checked Oct 20, 2026.

Install

Alternatives to fastrlock

All utilities

In our scan, none of the most used tools in Utilities does the same job as fastrlock: they are add-ons, companions or tools for a different task.

More in Utilities: clsx date-fns PyYAML uuid yaml js-yaml glob Lodash

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