No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
pyquaternion has 3.6M monthly downloads and 367 GitHub stars. Version 0.9.9, first published in 2016.
It is showing limited recent maintenance under a permissive license, last released in Oct 2020.
It is built on top of numpy. It is used by 79 tracked packages, including open3d, nuscenes-devkit and open3d-cpu.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
20
Popularity
54
Adoption
100
Community
60
Provenance
0
How the maintenance status was determined
Last commit
2098 days ago
Monthly downloads
3,647,889
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
3,647,889
Stars
367
Stars per 1k downloads
0.10
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
168,497
Month daily avg
121,596
Momentum
+38.6%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
Not specified
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
Package does not declare a minimum Python version.
License categories
License
MIT
•
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
2100 days ago
Total releases
6
Releases/year
0.6
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
12
Monthly downloads
3,647,889
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
59
Issue Burden
70.8
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
16.2%
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
26.2K
macOS
512
Windows
333
Python Versions
3.12
36.5%
9.4K
3.10
35.4%
9.1K
3.11
21.1%
5.4K
3.9
4.1%
1.1K
3.13
3.0%
769
Top Countries
1.
US
20.3K
US
2.
NL
2.0K
NL
3.
SG
765
SG
4.
DE
573
DE
5.
JP
474
JP
6.
CN
382
CN
7.
KR
282
KR
8.
CA
244
CA
9.
IN
232
IN
10.
BE
195
BE
Used By
79
- open3d
- nuscenes-devkit
- open3d-cpu
- kiss-icp
- lyft-dataset-sdk
- cityscapesscripts
- nerfstudio
- pye57
- utils3d
- python-pycg
- rko-lio
- reachy2-sdk
- bbox
- rosys
- zod
- truckscenes-devkit
- alfred-py
- janim
- april-vision
- py123d
- bucketed-scene-flow-eval
- datasetinsights
- tartanair
- sai-mujoco
- mmcore
- microstructpy
- genz-icp
- molgrid
- kq-lmpc-quadrotor
- micropsi-integration-sdk
- fabrics
- mpscenes
- plexus-python-pulse-common
- face-landmarker-3d
- pyonfx
- aruco-estimator
- perceptual-map-closures
- skadipy
- vfmc
- motion-planning-scenes
- worldmodel-hub
- dual-quaternions
- cvgl-data
- eai-eval
- d3nav
- openemma
- kubric
- modest
- cosy1
- vod-devkit
Package Information
License
MIT
First Release
October 13, 2016
Last Release
5 years ago
Last Commit
5 years ago
Latest Version
0.9.9
Total Releases
6
Contributors
12
Open PRs
11
Archived
No
Author
Kieran Wynn
Python Versions
2.7
3.5
3.6
3.7
3.8
Wheels
py2
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh