PyPI Stats
tryolabs

norfair

Lightweight Python library for adding real-time multi-object tracking to any detector.
PyPI GitHub
Downloads
Day
3.4K
Week
23.2K
Month
94.8K
Stars
2.6K
Forks
275
Issues
22
Version
2.3.0

Package Insights

What's this?
Score breakdown - each component scores 0–100, weighted by percentage
Maintenance
40
Popularity
72
Adoption
69
Community
55
How the maintenance status was determined
Last commit
371 days ago
Monthly downloads
94,839
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
94,839
Stars
2,640
Stars per 1k downloads
27.84
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
3,320
Month daily avg
3,161
Momentum
+5.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
<4.0,>=3.8
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
• 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
371 days ago
Total releases
20
Releases/year
3.5
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
34
Monthly downloads
94,839
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
8.3
per 1k stars
Discussions
4.9
per 1k stars
Fork Ratio
12.4%
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 2.8K
Windows 11
macOS 8

Python Versions

3.12
78.8% 2.2K
3.11
19.1% 538
3.10
1.7% 48
3.9
0.3% 8
3.14
0.2% 5

Top Countries

1. SG SG
2.1K
2. US US
333
3. CA CA
34
4. MX MX
34
5. GB GB
32
6. DE DE
26
7. NL NL
23
8. FR FR
20
9. IN IN
17
10. AU AU
16

Dependencies

5
2 optional dependencies

Used By

2

Package Information

License
BSD-3-Clause
First Release
July 21, 2020
Last Release
1 year ago
Last Commit
1 year ago
Latest Version
2.3.0
Total Releases
20
Contributors
34
Open PRs
9
Archived
No
Author
Tryolabs
Python Versions
3 3.8 3.9 3.10 3.11
Wheels
py3
Keywords
tracking object-detection object-tracking kalman-filter pose-estimation re-identification multi-object-tracking re-id tracking-algorithm deepsort video-tracking video-inference-loop
Topics
tracking tracking-algorithm kalman-filter object-tracking video-tracking video-inference-loop deepsort object-detection pose-estimation python re-id re-identification multi-object-tracking
Tracking Since
January 6, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh

Links