PyRank
gorules

zen-engine

Open-source Business Rules Engine for your Rust, NodeJS, Python, Go, Java, C#, Kotlin (JVM), Kotlin (Android) and Swift (iOS) applications.
PyPI GitHub
More links
Download Stats
Monthly downloads
632.6K
Weekly downloads
146.6K
GitHub stars
2.1K

Downloads in the 30 and 7 days to October 10, 2026. Refreshed weekly.

Package Information

Latest Version
2.1.3
Requires Python
>=3.7
Licence
Unknown
Last Release
1 week ago
First Release
March 13, 2023
Total Releases
95
No reported malware or high/critical advisories · Details

The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
69
Adoption
68
Community
45
Provenance
0
How the maintenance status was determined
Last commit
7 days ago
Monthly downloads
632,637
• 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
632,637
Stars
2,054
Stars per 1k downloads
3.25
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
20,936
Month daily avg
21,088
Momentum
-0.7%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
More insights and metrics
Python version support tiers
requires_python
>=3.7
Cutting Edge
Minimum supported version is 3.14 or newer
Modern
Minimum supported version is 3.11 to 3.13
• Legacy
Supports 3.10 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
Not specified
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
Package does not declare a license.
How the release cadence was determined
Last release
7 days ago
Total releases
95
Releases/year
26.4
• 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
14
Monthly downloads
632,637
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
16.1
per 1k stars
Discussions
40.9
per 1k stars
Fork Ratio
6.4%
contrib / forks
Stale Release
No
 
PR Velocity
Active
 
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 12.1K
Windows 148
macOS 56

Python Versions

3.13
62.1% 7.2K
3.12
25.7% 3.0K
3.14
5.4% 632
3.9
3.7% 429
3.10
3.2% 370

Top Countries

1. US US
6.2K
2. DE DE
5.4K
3. SG SG
343
4. GB GB
92
5. FR FR
72
6. IN IN
67
7. CN CN
59
8. SE SE
56
9. KR KR
27
10. PL PL
22

Weekly Downloads

GitHub Stars

Dependencies

0
6 optional dependencies

Used By

4

Repository details

Forks
220
Issues
33
Last Commit
1 week ago
Contributors
14
Open PRs
8
Archived
No

Data and sources

Tracking Since
September 26, 2026
Data Updated
October 11, 2026
Data Freshness
Fresh
Keywords
gorules zen-engine business rules engine rules engine rule engine bre rule rules engine decision decision table rust pyo3
Sources and methodology