PyRank
KevinMusgrave

pytorch-metric-learning

The easiest way to use deep metric learning in your application. Modular, flexible, and extensible. Written in PyTorch.
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

pytorch-metric-learning has 3.4M monthly downloads and 6K GitHub stars. Version 2.9.0 supports Python 3.0+, first published in 2019.

It is minimally maintained under a permissive license, last released in Aug 2025.

It is used by 21 tracked packages, including pyannote-audio, autogluon-multimodal and torch-points3d.

GitHub topics include metric-learning, deep-learning and computer-vision.

Downloads
Day
104.4K
Week
820.2K
Month
3.4M
Stars
6.3K
Forks
659
Issues
72
Version
2.9.0

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
50
Popularity
81
Adoption
80
Community
55
Provenance
0
How the maintenance status was determined
Last commit
324 days ago
Monthly downloads
3,401,090
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
3,401,090
Stars
6,330
Stars per 1k downloads
1.86
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
117,168
Month daily avg
113,370
Momentum
+3.4%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.0
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
MIT 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
324 days ago
Total releases
213
Releases/year
31.8
• 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
41
Monthly downloads
3,401,090
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
70
 
Issue Burden
11.4
per 1k stars
Discussions
6.5
per 1k stars
Fork Ratio
6.2%
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 81.2K
Windows 4.1K
macOS 1.6K

Python Versions

3.8
53.9% 46.0K
3.12
18.8% 16.1K
3.10
12.5% 10.6K
3.11
10.8% 9.2K
3.13
4.0% 3.4K

Top Countries

1. CN CN
46.1K
2. US US
30.9K
3. SG SG
1.2K
4. NL NL
775
5. IN IN
767
6. DE DE
685
7. JP JP
621
8. FR FR
527
9. CA CA
379
10. GB GB
346

Package Information

License
MIT License
First Release
October 24, 2019
Last Release
10 months ago
Last Commit
10 months ago
Latest Version
2.9.0
Total Releases
213
Contributors
41
Open PRs
5
Archived
No
Author
Kevin Musgrave
Python Versions
3
Wheels
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links