PyRank
fairlearn

fairlearn

A Python package to assess and improve fairness of machine learning models.
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

fairlearn has 206K monthly downloads and 2K GitHub stars. Version 0.14.0 supports Python 3.10+, first published in 2018.

It is actively maintained under a permissive license, last released in Jun 2026.

It is built on top of narwhals, numpy and pandas. It is used by 36 tracked packages, including azureml-responsibleai, raiwidgets and benchmarkdpfair.

GitHub topics include fairness-ml, fairness-ai and fairness.

Downloads
Day
5.5K
Week
45.5K
Month
206.1K
Stars
2.3K
Forks
504
Issues
111
Version
0.14.0

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
73
Adoption
63
Community
90
Provenance
0
How the maintenance status was determined
Last commit
5 days ago
Monthly downloads
206,113
• 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
206,113
Stars
2,254
Stars per 1k downloads
10.94
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
6,500
Month daily avg
6,870
Momentum
-5.4%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python 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
MIT License
• 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
29 days ago
Total releases
24
Releases/year
3.0
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
117
Monthly downloads
206,113
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
92
 
Issue Burden
49.2
per 1k stars
Discussions
14.6
per 1k stars
Fork Ratio
23.2%
contrib / forks
Stale Release
No
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 3.5K
Windows 98
macOS 76

Python Versions

3.10
32.7% 1.1K
3.12
32.2% 1.1K
3.11
24.4% 827
3.13
5.6% 189
3.14
5.2% 175

Top Countries

1. US US
2.9K
2. GB GB
287
3. AE AE
115
4. NL NL
92
5. IE IE
75
6. SG SG
75
7. HK HK
62
8. CN CN
36
9. AU AU
25
10. IN IN
23

Package Information

License
MIT License
First Release
June 21, 2018
Last Release
1 month ago
Last Commit
5 days ago
Latest Version
0.14.0
Total Releases
24
Contributors
117
Open PRs
12
Archived
No
Author
Miroslav Dudik, Richard Edgar, Adrin Jalali, Roman Lutz, Michael Madaio, Hilde Weerts, Allie Saizan, Tamara Atanasoska, Tahar Allouche
Python Versions
3.10 3.11 3.12 3.13
Wheels
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links