PyPI Stats
nansencenter

dapper

Data Assimilation with Python: a Package for Experimental Research
PyPI GitHub

Shared Repository

This package shares its GitHub repository (nansencenter/DAPPER) with 1 other package. Stars, forks, and other GitHub metrics reflect the entire repository.
Downloads
Day
38
Week
232
Month
760
Stars
400
Forks
129
Issues
17
Version
1.7.3

Package Insights

What's this?
Score breakdown - each component scores 0–100, weighted by percentage
Maintenance
70
Popularity
57
Adoption
28
Community
60
How the maintenance status was determined
Last commit
76 days ago
Monthly downloads
760
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
760
Stars
400
Stars per 1k downloads
526.32
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
Needs at least 1,000 monthly downloads to classify popularity.
How download momentum is calculated
Week daily avg
33
Month daily avg
25
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
>=3.12
• 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
• 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
240 days ago
Total releases
11
Releases/year
1.2
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
10
Monthly downloads
760
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
52
 
Issue Burden
42.5
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
7.8%
contrib / forks
Stale Release
164d
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 4

Python Versions

3.12
50.0% 2
3.14
50.0% 2

Top Countries

1. US US
5
2. CA CA
1

Dependencies

17
48 optional dependencies

Used By

0
Not used by any tracked packages

Package Information

License
MIT
First Release
December 12, 2016
Last Release
8 months ago
Last Commit
2 months ago
Latest Version
1.7.3
Total Releases
11
Contributors
10
Open PRs
2
Archived
No
Author
Patrick N. Raanes
Python Versions
3
Wheels
py3
Keywords
data-assimilation enkf kalman-filtering state-estimation particle-filter kalman bayesian-methods bayesian-filter chaos
Topics
data-assimilation enkf kalman-filtering state-estimation particle-filter kalman bayesian-methods bayesian-filter chaos
Tracking Since
January 14, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh

Links