No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
ale-py has 314K monthly downloads and 2K GitHub stars. Version 0.12.0 supports Python 3.10+, first published in 2020.
It is actively maintained under a copyleft license, last released in May 2026.
It is built on top of numpy and typing-extensions. It is used by 14 tracked packages, including dopamine-rl, npfl139 and torchwm.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
74
Adoption
54
Community
65
Provenance
0
How the maintenance status was determined
Last commit
7 days ago
Monthly downloads
313,871
•
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
313,871
Stars
2,429
Stars per 1k downloads
7.74
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
9,119
Month daily avg
10,462
Momentum
-12.8%
((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-2.0-only
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
37 days ago
Total releases
23
Releases/year
3.6
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
63
Monthly downloads
313,871
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
70
Issue Burden
15.6
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
13.3%
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
5.8K
Windows
356
macOS
124
Python Versions
3.12
48.8%
2.9K
3.11
21.0%
1.3K
3.10
19.9%
1.2K
3.13
5.9%
354
3.14
4.4%
262
Top Countries
1.
US
5.3K
US
2.
SG
179
SG
3.
JP
112
JP
4.
CZ
109
CZ
5.
CN
89
CN
6.
DE
82
DE
7.
GB
52
GB
8.
IN
43
IN
9.
HK
40
HK
10.
FR
31
FR
Dependencies
2
- numpy >1.20
- typing-extensions
11 optional dependencies
- chex[test]
- chex[xla]
- gymnasium[xla]
- gymnasium[vector]
- gymnasium[test]
- jax[test]
- jax[xla]
- opencv-python[test]
- opencv-python[vector]
- opencv-python[xla]
- pytest[test]
Package Information
License
GPL-2.0-only
First Release
February 7, 2020
Last Release
1 month ago
Last Commit
1 week ago
Latest Version
0.12.0
Total Releases
23
Contributors
63
Open PRs
8
Archived
No
Author
Marc G. Bellemare, Yavar Naddaf, Joel Veness, Michael Bowling
Python Versions
3
3.10
3.11
3.12
3.13
3.14
Wheels
cp310
cp311
cp312
cp313
cp314
cp35
cp36
cp37
cp38
cp39
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh