PyPI Stats
parashardhapola

scarf

Toolkit for highly memory efficient analysis of single-cell RNA-Seq, scATAC-Seq and CITE-Seq data. Analyze atlas scale datasets with millions of cells on laptop.
PyPI GitHub

Shared Repository

This package shares its GitHub repository (parashardhapola/scarf) with 1 other package. Stars, forks, and other GitHub metrics reflect the entire repository.
Downloads
Day
12
Week
71
Month
2.1K
Stars
115
Forks
15
Issues
16
Version
0.32.3

Package Insights

What's this?
Score breakdown - each component scores 0–100, weighted by percentage
Maintenance
65
Popularity
40
Adoption
33
Community
30
How the maintenance status was determined
Last commit
168 days ago
Monthly downloads
2,146
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
2,146
Stars
115
Stars per 1k downloads
53.59
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
Month daily avg
72
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
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
168 days ago
Total releases
57
Releases/year
11.8
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
8
Monthly downloads
2,146
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
51
 
Issue Burden
139.1
per 1k stars
Discussions
121.7
per 1k stars
Fork Ratio
53.3%
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

Windows 2

Python Versions

3.13
100.0% 2

Top Countries

1. EE EE
2
2. CA CA
1
3. US US
1

Dependencies

24
9 optional dependencies

Used By

0
Not used by any tracked packages

Package Information

License
BSD 3-Clause
First Release
July 10, 2021
Last Release
5 months ago
Last Commit
5 months ago
Latest Version
0.32.3
Total Releases
57
Contributors
8
Open PRs
2
Archived
No
Author
Parashar Dhapola
Python Versions
3 3.12
Wheels
py3
Keywords
single-cell
Topics
bioinformatics single-cell-genomics single-cell-rna-seq dimension-reduction clustering umap tsne big-data cite-seq single-cell-atac-seq memory-efficient scalable-data-analysis scrna-seq scatac-seq pseudotime multiomics gene-modules differential-expression graph-analytics genomics
Tracking Since
January 6, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh

Links