PyRank
pymc-devs

pymc

Bayesian Modeling and Probabilistic Programming in Python
PyPI GitHub Verified repo
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

pymc has 3.8M monthly downloads and 10K GitHub stars. Version 6.0.1 supports Python 3.12+, first published in 2009.

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

It is built on top of arviz, cachetools and cloudpickle. It is used by 150 tracked packages, including pymc-extras, pymc-marketing and bambi.

GitHub topics include statistical-analysis, bayesian-inference and mcmc.

Shared Repository
This package shares its GitHub repository (pymc-devs/pymc) with 1 other package. Stars, forks, and other GitHub metrics reflect the entire repository.
Downloads
Day
436.3K
Week
2.4M
Month
3.8M
Stars
9.7K
Forks
2.3K
Issues
309
Version
6.0.1

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
85
Adoption
100
Community
90
Provenance
100
How the maintenance status was determined
Last commit
9 days ago
Monthly downloads
3,803,474
• 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
3,803,474
Stars
9,667
Stars per 1k downloads
2.54
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
344,502
Month daily avg
126,782
Momentum
+171.7%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.12
• 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
Apache License, Version 2.0
• 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
47 days ago
Total releases
100
Releases/year
5.7
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
477
Monthly downloads
3,803,474
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
98
 
Issue Burden
32.0
per 1k stars
Discussions
11.5
per 1k stars
Fork Ratio
21.1%
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 36.8K
macOS 1.3K
Windows 567

Python Versions

3.12
54.4% 20.2K
3.11
21.2% 7.9K
3.10
10.7% 4.0K
3.13
9.6% 3.6K
3.14
4.1% 1.5K

Top Countries

1. US US
334.8K
2. DK DK
82.3K
3. SE SE
14.7K
4. SG SG
6.2K
5. IE IE
2.8K
6. HK HK
2.1K
7. CN CN
2.0K
8. NL NL
405
9. DE DE
274
10. GB GB
260
GitHub Topics
Tags from the package's GitHub repository describing what it does.

Package Information

License
Apache License, Version 2.0
First Release
January 5, 2009
Last Release
1 month ago
Last Commit
1 week ago
Latest Version
6.0.1
Total Releases
100
Contributors
477
Open PRs
171
Archived
No
Python Versions
3 3.12 3.13 3.14
Wheels
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links