PyPI Stats
astro-informatics

s2fft

S2FFT: Differentiable and accelerated spherical transforms
PyPI GitHub
Downloads
Day
116
Week
498
Month
3.0K
Stars
223
Forks
17
Issues
44
Version
1.4.0

Package Insights

What's this?
Score breakdown - each component scores 0–100, weighted by percentage
Maintenance
70
Popularity
45
Adoption
34
Community
30
How the maintenance status was determined
Last commit
15 days ago
Monthly downloads
2,999
• 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
2,999
Stars
223
Stars per 1k downloads
74.36
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
71
Month daily avg
100
Momentum
—
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Momentum not reported for packages with < 5,000 monthly downloads — percentages are noisy at low volume.
Python version support tiers
requires_python
>=3.11
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
83 days ago
Total releases
9
Releases/year
3.7
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
16
Monthly downloads
2,999
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
43
 
Issue Burden
197.3
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
94.1%
contrib / forks
Stale Release
68d
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

No OS data available

Python Versions

No Python version data available

Top Countries

1. CA CA
1

Dependencies

2
31 optional dependencies

Used By

4

Package Information

License
MIT License
First Release
November 27, 2023
Last Release
2 months ago
Last Commit
2 weeks ago
Latest Version
1.4.0
Total Releases
9
Contributors
16
Open PRs
4
Archived
No
Author
Matthew A. Price, Jason D. McEwen, Contributors
Python Versions
3 3.11 3.12 3.13
Wheels
cp310 cp311 cp312 cp314 cp38 cp39 pp310 pp311 pp38 pp39 py3
Topics
differentiable-programming jax spherical-harmonics wigner-d-matrix wigner-transform fourier-transform recursion-algorithm pytorch spherical
Tracking Since
January 6, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh

Links