PyPI Stats
flaport

fdtd

A 3D electromagnetic FDTD simulator written in Python with optional GPU support
PyPI GitHub
Downloads
Day
242
Week
2.7K
Month
9.2K
Stars
697
Forks
148
Issues
27
Version
0.3.5

Package Insights

What's this?
Score breakdown - each component scores 0–100, weighted by percentage
Maintenance
40
Popularity
61
Adoption
79
Community
50
How the maintenance status was determined
Last commit
226 days ago
Monthly downloads
9,171
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
9,171
Stars
697
Stars per 1k downloads
76.00
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
385
Month daily avg
306
Momentum
+25.8%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
Not specified
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
Package does not declare a minimum Python version.
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
880 days ago
Total releases
16
Releases/year
2.2
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
9,171
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
45
 
Issue Burden
38.7
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
6.8%
contrib / forks
Stale Release
654d
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 12
Windows 4

Python Versions

3.12
62.5% 10
3.11
37.5% 6

Top Countries

1. US US
12
2. JP JP
4
3. CA CA
1

Dependencies

4
12 optional dependencies

Used By

1

Package Information

License
MIT License
First Release
March 11, 2019
Last Release
2 years ago
Last Commit
7 months ago
Latest Version
0.3.5
Total Releases
16
Contributors
10
Open PRs
1
Archived
No
Author
Floris Laporte
Python Versions
3
Wheels
py3
Topics
simulation simulation-framework fdtd optics photonics physics physics-simulation fdtd-simulator python pytorch numpy 3d-fdtd electric-fields magnetic-fields
Tracking Since
January 6, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh

Links