PyRank
plasma-umass

scalene

Scalene: a high-performance, high-precision CPU, GPU, and memory profiler for Python with AI-powered optimization proposals
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

scalene has 305K monthly downloads and 13K GitHub stars. Version 2.3.0 supports Python !=3.11.0,>=3.8, first published in 2019.

It is actively maintained under a permissive license, last released in May 2026.

It is built on top of astunparse, cloudpickle and jinja2. It is used by 4 tracked packages, including vivarium-profiling, aiprofile and poweroperator.

GitHub topics include profiling, performance-analysis and cpu-profiling.

Downloads
Day
10.3K
Week
72.3K
Month
304.9K
Stars
13.5K
Forks
436
Issues
149
Version
2.3.0

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
84
Adoption
74
Community
50
Provenance
0
How the maintenance status was determined
Last commit
4 days ago
Monthly downloads
304,862
• 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
304,862
Stars
13,461
Stars per 1k downloads
44.15
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
10,330
Month daily avg
10,162
Momentum
+1.7%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
!=3.11.0,>=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
Apache Software 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
55 days ago
Total releases
190
Releases/year
29.0
• 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
53
Monthly downloads
304,862
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
61
 
Issue Burden
11.1
per 1k stars
Discussions
4.8
per 1k stars
Fork Ratio
12.2%
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 5.7K
Windows 376
macOS 110

Python Versions

3.12
53.0% 3.3K
3.11
17.0% 1.0K
3.14
12.4% 763
3.10
8.9% 544
3.13
8.7% 535

Top Countries

1. US US
5.5K
2. DE DE
219
3. JP JP
139
4. CN CN
101
5. AU AU
45
6. IE IE
39
7. NL NL
38
8. BE BE
37
9. GB GB
33
10. SE SE
32

Dependencies

9
6 optional dependencies

Used By

4

Package Information

License
Apache Software License
First Release
December 17, 2019
Last Release
1 month ago
Last Commit
5 days ago
Latest Version
2.3.0
Total Releases
190
Contributors
53
Open PRs
2
Archived
No
Python Versions
3 3.8 3.9 3.10 3.11 3.12 3.13 3.14
Wheels
cp310 cp311 cp312 cp313 cp314 cp37 cp38 cp39 py3
Keywords
performance profiler optimization CPU GPU memory LLM
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links