PyRank
pyapp-kit

psygnal

Python observer pattern (callback/event system). Modeled after Qt Signals & Slots (but independent of Qt)
PyPI GitHub Verified repo
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

psygnal has 3.7M monthly downloads and 130 GitHub stars. Version 0.15.1 supports Python 3.10+, first published in 2021.

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

It is used by 46 tracked packages, including anywidget, magicgui and app-model.

GitHub topics include signalslot and callbacks.

Downloads
Day
142.7K
Week
887.2K
Month
3.7M
Stars
130
Forks
22
Issues
5
Version
0.15.1

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
43
Adoption
80
Community
45
Provenance
100
How the maintenance status was determined
Last commit
34 days ago
Monthly downloads
3,715,962
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
3,715,962
Stars
130
Stars per 1k downloads
0.03
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
126,745
Month daily avg
123,865
Momentum
+2.3%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python 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
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
183 days ago
Total releases
50
Releases/year
10.0
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
3,715,962
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
55
 
Issue Burden
38.5
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
63.6%
contrib / forks
Stale Release
149d
 
PR Velocity
Active
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 90.4K
Windows 2.3K
macOS 1.6K

Python Versions

3.11
73.4% 68.7K
3.12
17.9% 16.7K
3.13
4.3% 4.0K
3.10
2.3% 2.2K
3.14
2.1% 2.0K

Top Countries

1. US US
51.4K
2. IE IE
15.1K
3. NL NL
14.1K
4. AU AU
2.8K
5. SG SG
2.6K
6. GB GB
2.1K
7. FR FR
2.0K
8. CA CA
708
9. CN CN
684
10. DE DE
641
GitHub Topics
Tags from the package's GitHub repository describing what it does.

Package Information

License
BSD 3-Clause License
First Release
July 5, 2021
Last Release
6 months ago
Last Commit
1 month ago
Latest Version
0.15.1
Total Releases
50
Contributors
14
Open PRs
7
Archived
No
Python Versions
3 3.10 3.11 3.12 3.13 3.14
Wheels
cp310 cp311 cp312 cp313 cp314 cp37 cp38 cp39 py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links