License Policy

Copyright (c) 2026 Manabe Lab LLC

This software is provided under a dual-licensing model to support the
educational community while sustaining the project's development.


Scope

This policy covers the software in this repository: the contents of src/,
the test code in tests/, and the project's own documentation. That is what
Manabe Lab LLC holds the copyright in, and it is the whole of what the
published sdist and wheel contain.

It does not cover the third-party test data in tests/fixtures/. Those files
are other people's copyright and carry their own terms, recorded file by file
in tests/fixtures/NOTICE.md:

  - Creative Commons Attribution 4.0 for the pglib-opf cases, and for
    ieee14.raw, ieee118.raw and ieee14.psfg.json, which are converted from
    them;
  - BSD 3-Clause for 39bus.raw;
  - the Texas A&M Electric Grid Test Case Repository's terms for
    ACTIVSg2000.raw.

Nothing in this policy grants, withholds or restricts any right in those
files. In particular, neither the MIT tier nor the Commercial tier below
applies to them: each of those licences already permits commercial use, and
each requires that its attribution stay with the file. Do not remove the
copyright and credit lines those files carry.

No file from tests/fixtures/ is included in the published package.

1. Individual & Educational Use (MIT License)

If you are a student, researcher, or individual using this for non-commercial
educational purposes, the MIT License applies. You are free to use, study,
and modify the code.

2. Commercial & Business Use

Any use within a for-profit organization or for commercial products requires
a Commercial License.


Contribution Policy

To maintain the ability to offer commercial licenses and ensure the long-term
sustainability of this project, we do not accept external code contributions
(Pull Requests) at this time.

We still highly value your feedback, such as bug reports and feature
suggestions.
