PyRank
dask

fastparquet

python implementation of the parquet columnar file format.
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

fastparquet has 15.8M monthly downloads and 900 GitHub stars. Version 2026.5.0 supports Python 3.10+, first published in 2016.

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

It is built on top of cramjam, fsspec and numpy. It is used by 399 tracked packages, including genai-perf, nucleobench and nfl-data-py.

Downloads
Day
449.5K
Week
3.5M
Month
15.8M
Stars
900
Forks
191
Issues
88
Version
2026.5.0

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
64
Adoption
70
Community
65
Provenance
0
How the maintenance status was determined
Last commit
8 days ago
Monthly downloads
15,840,579
• 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
15,840,579
Stars
900
Stars per 1k downloads
0.06
• 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
494,619
Month daily avg
528,019
Momentum
-6.3%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.10
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 License 2.0
• 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
53 days ago
Total releases
53
Releases/year
5.5
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
47
Monthly downloads
15,840,579
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
66
 
Issue Burden
97.8
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
24.6%
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 319.3K
Windows 2.9K
macOS 1.2K

Python Versions

3.12
24.9% 67.9K
3.11
20.7% 56.6K
3.9
19.8% 54.1K
3.10
17.4% 47.4K
3.8
17.2% 47.0K

Top Countries

1. US US
244.7K
2. DE DE
18.3K
3. IE IE
11.3K
4. NL NL
9.1K
5. SG SG
7.7K
6. IN IN
5.3K
7. GB GB
4.8K
8. JP JP
3.7K
9. FR FR
2.7K
10. TH TH
2.6K

Package Information

License
Apache License 2.0
First Release
November 1, 2016
Last Release
1 month ago
Last Commit
1 week ago
Latest Version
2026.5.0
Total Releases
53
Contributors
47
Open PRs
5
Archived
No
Author
Martin Durant
Python Versions
3 3.10 3.11 3.12 3.13 3.14
Wheels
cp310 cp311 cp312 cp313 cp314 cp35 cp36 cp37 cp38 cp39 py2 py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links