No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
yamllint has 37.1M monthly downloads and 3K GitHub stars. Version 1.38.0 supports Python 3.10+, first published in 2016.
It is actively maintained under a copyleft license, last released in Jan 2026.
It is built on top of pathspec and pyyaml. It is used by 79 tracked packages, including ansible-lint, pyats-topology and dbt-autofix.
GitHub topics include linter, lint and yaml.
Package Insights
Package Risks
- No releases in 163 days despite active commits
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
74
Adoption
70
Community
60
Provenance
100
How the maintenance status was determined
Last commit
10 days ago
Monthly downloads
37,127,477
•
Active
Activity within 30 days
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
37,127,477
Stars
3,418
Stars per 1k downloads
0.09
•
Industry Standard
> 10,000,000 monthly downloads
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
1,225,358
Month daily avg
1,237,583
Momentum
-1.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.10
Cutting Edge
Minimum supported version is 3.12 or newer
•
Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
GPL-3.0-or-later
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
•
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
174 days ago
Total releases
74
Releases/year
7.1
Rapid
Last release within 365 days and > 12 releases/year
•
Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
90
Monthly downloads
37,127,477
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
•
Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
63
Issue Burden
36.3
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
28.5%
contrib / forks
Stale Release
163d
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
655.0K
Windows
7.0K
macOS
2.9K
Python Versions
3.12
29.3%
183.7K
3.10
27.3%
171.3K
3.14
16.3%
102.1K
3.11
13.9%
87.1K
3.13
13.3%
83.7K
Top Countries
1.
US
579.3K
US
2.
NL
25.8K
NL
3.
DE
24.6K
DE
4.
FR
4.2K
FR
5.
IE
3.8K
IE
6.
AU
3.7K
AU
7.
GB
3.4K
GB
8.
SG
3.1K
SG
9.
CA
2.5K
CA
10.
CH
2.1K
CH
Used By
79
- ansible-lint
- pyats-topology
- dbt-autofix
- qontract-reconcile
- kapitan
- coala-bears
- gardener-cicd-libs
- envoy-code-check
- dbt-platform-helper
- pyfltr
- runway
- ansible-later
- instructlab-schema
- eyes-robotframework
- apache-airflow-devel-common
- rapidkit-core
- opencos-eda
- daylily-ephemeral-cluster
- argus-security
- fdroidserver
- osu-wiki-tools
- datus-metricflow
- statick
- gardener-gha-libs
- addicty
- badwolf
- make-argocd-fly
- pz-rail-projects
- im-jote
- ul-py-tool
- azure-pipeline-validator
- dtool-lookup-gui
- nornir-collection
- information-resource-registry
- oda-wd-client
- gardener-cicd-base
- d3-cli
- supreme-max
- gha-ci-detector
- zen-generator
- tidypy
- cleared
- pib-cli
- shieldctl
- stylebook
- metricflow-lite
- open-dev
- papery
- cribl-utilities
- octo-pipeline-backend-yaml-python
Package Information
License
GPL-3.0-or-later
First Release
January 12, 2016
Last Release
5 months ago
Last Commit
1 week ago
Latest Version
1.38.0
Total Releases
74
Contributors
90
Open PRs
32
Archived
No
Author
Adrien Vergé
Wheels
py2
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh