PyRank
Farama-Foundation

pettingzoo

An API standard for multi-agent reinforcement learning environments, with popular reference environments and related utilities
PyPI GitHub
Downloads
Day
12.4K
Week
83.8K
Month
383.4K
Stars
3.4K
Forks
484
Issues
45
Version
1.26.1

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
76
Adoption
65
Community
80
How the maintenance status was determined
Last commit
26 days ago
Monthly downloads
383,425
• 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
383,425
Stars
3,414
Stars per 1k downloads
8.90
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
11,967
Month daily avg
12,781
Momentum
-6.4%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
<3.15,>=3.9
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
26 days ago
Total releases
11
Releases/year
1.8
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
119
Monthly downloads
383,425
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
69
 
Issue Burden
13.2
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
24.6%
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 10.4K
Windows 393
macOS 391

Python Versions

3.11
29.6% 3.3K
3.13
27.8% 3.1K
3.12
22.5% 2.5K
3.10
17.3% 1.9K
3.9
2.8% 305

Top Countries

1. US US
9.9K
2. CA CA
292
3. SG SG
252
4. CN CN
125
5. GB GB
88
6. NL NL
72
7. JP JP
67
8. KR KR
54
9. IN IN
45
10. DE DE
40

GitHub Topics

Tags from the package's GitHub repository describing what it does.

Package Information

License
MIT License
First Release
May 5, 2020
Last Release
3 weeks ago
Last Commit
3 weeks ago
Latest Version
1.26.1
Total Releases
11
Contributors
119
Open PRs
14
Archived
No
Python Versions
3 3.9 3.10 3.11 3.12 3.13 3.14
Wheels
py3
Keywords
Reinforcement Learning game RL AI gymnasium
Tracking Since
January 6, 2026
Data Updated
May 17, 2026
Data Freshness
Fresh

Links