PyRank
pykalman

pykalman

Kalman Filter, Smoother, and EM Algorithm for 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.

pykalman has 265K monthly downloads and 1K GitHub stars. Version 0.11.2 supports Python <3.15,>=3.10, first published in 2012.

It is stably maintained under a permissive license, last released in Jan 2026.

It is built on top of numpy, packaging and scikit-base. It is used by 23 tracked packages, including siat, sleap-nn and water-column-sonar-processing.

Downloads
Day
8.3K
Week
61.3K
Month
264.9K
Stars
1.3K
Forks
404
Issues
66
Version
0.11.2

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
55
Popularity
69
Adoption
64
Community
80
Provenance
100
How the maintenance status was determined
Last commit
156 days ago
Monthly downloads
264,861
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
264,861
Stars
1,322
Stars per 1k downloads
4.99
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
8,750
Month daily avg
8,829
Momentum
-0.9%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
<3.15,>=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
BSD 3-Clause 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
156 days ago
Total releases
13
Releases/year
0.9
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
21
Monthly downloads
264,861
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
68
 
Issue Burden
49.9
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
5.2%
contrib / forks
Stale Release
No
 
PR Velocity
Active
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 4.1K
Windows 440
macOS 142

Python Versions

3.11
53.0% 2.4K
3.12
21.8% 968
3.10
14.9% 664
3.13
6.9% 307
3.14
3.4% 152

Top Countries

1. US US
3.1K
2. NL NL
332
3. GB GB
238
4. DE DE
203
5. SG SG
156
6. JP JP
106
7. HK HK
68
8. IN IN
61
9. CN CN
48
10. CA CA
35

Package Information

License
BSD 3-Clause License
First Release
August 20, 2012
Last Release
5 months ago
Last Commit
5 months ago
Latest Version
0.11.2
Total Releases
13
Contributors
21
Open PRs
19
Archived
No
Author
Daniel Duckworth
Python Versions
3.10 3.11 3.12 3.13 3.14
Wheels
py2 py3
Keywords
kalman filter smoothing filter em expectation-maximization hmm tracking unscented
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links