PyPI Stats
pandera-dev

pandera

A light-weight, flexible, and expressive statistical data testing library
PyPI GitHub
Downloads
Day
304.2K
Week
2.1M
Month
8.7M
Stars
4.3K
Forks
395
Issues
415
Version
0.31.1

Package Insights

What's this?
Score breakdown - each component scores 0–100, weighted by percentage
Maintenance
100
Popularity
76
Adoption
80
Community
70
How the maintenance status was determined
Last commit
4 days ago
Monthly downloads
8,735,187
• 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
8,735,187
Stars
4,322
Stars per 1k downloads
0.49
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
293,728
Month daily avg
291,173
Momentum
+0.9%
((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
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
21 days ago
Total releases
121
Releases/year
16.1
• 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
193
Monthly downloads
8,735,187
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
84
 
Issue Burden
96.0
per 1k stars
Discussions
41.4
per 1k stars
Fork Ratio
48.9%
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 147.5K
Windows 1.1K
macOS 520

Python Versions

3.10
44.1% 61.7K
3.11
21.1% 29.5K
3.12
18.8% 26.2K
3.9
9.5% 13.2K
3.13
6.5% 9.1K

Top Countries

1. US US
115.8K
2. IE IE
8.0K
3. GB GB
6.6K
4. DE DE
5.4K
5. NL NL
3.3K
6. FR FR
2.1K
7. KR KR
1.8K
8. SG SG
1.4K
9. CH CH
989
10. AU AU
854

Dependencies

5
48 optional dependencies

Used By

287
View all 287 dependents

Package Information

License
MIT License
First Release
November 5, 2018
Last Release
3 weeks ago
Last Commit
4 days ago
Latest Version
0.31.1
Total Releases
121
Contributors
193
Open PRs
34
Archived
No
Python Versions
3 3.10 3.11 3.12 3.13 3.14
Wheels
py3
Keywords
pandas validation data-structures
Topics
pandas validation schema dataframes testing pandas-validation pandas-dataframe data-validation data-cleaning data-check testing-tools assertions data-assertions data-verification dataframe-schema hypothesis-testing pandas-validator data-processing
Tracking Since
January 6, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh

Links