MontePy
The facts below are what the maker publishes about MontePy, checked and dated. Our editors have not written about it yet.
Plans and prices
From MontePy's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| MontePy | Free | Free Python library; no paid plans stated |
The facts
Each one read from MontePy's own pages, with the date it was checked.
What it does
- 3D visuals
- Nochecked 24 Sep 2026
- Assessment tools
- Nochecked 24 Sep 2026
- Authoring tools
- Nochecked 24 Sep 2026
- Automation
- Its object-oriented interface supports automating tasks such as updating MCNP decks, parameterizing models, and converting models to other Monte Carlo codes.checked 8 Oct 2026
- Data export
- Nochecked 24 Sep 2026
- Delivery mode
- hybridchecked 24 Sep 2026
- Does not run MCNP
- MontePy does not run MCNP or parse MCNP output files.checked 8 Oct 2026
- Formatting
- When writing files, MontePy attempts to preserve the original formatting, though modified objects may be reformatted slightly.checked 8 Oct 2026
- Input coverage
- The project says it handles almost all MCNP input syntax, but does not support macrobody facets and documents other syntax limitations.checked 8 Oct 2026
- Installation
- The library can be installed with pip or conda.checked 8 Oct 2026
- Intended users
- Documented use cases include reactor reconfiguration, fuel shuffling, model parameter studies, and updating models with results from other codes.checked 8 Oct 2026
- Lesson library
- Nochecked 24 Sep 2026
- License
- The project’s GitHub repository identifies its license as MIT.checked 8 Oct 2026
- Purpose
- MontePy is a Python library for reading, editing, and writing MCNP input files.checked 8 Oct 2026
- Semantic model
- MontePy links related input objects, such as cells and materials, so changing an object can update references in the file.checked 8 Oct 2026
- Support
- The project directs users to open GitHub issues for feature requests and lists an email address for questions.checked 8 Oct 2026
- Supported MCNP versions
- MontePy primarily supports MCNP 6.2; MCNP 6.3 is not fully supported, and earlier versions may have issues.checked 8 Oct 2026
Where it runs
- Browser demos
- The documentation provides Jupyter notebooks that can run in a browser, and says they can also be installed and run locally.checked 8 Oct 2026
Money
- Free plan
- Yeschecked 24 Sep 2026
The company
- Maker
- The documentation copyright is attributed to Battelle Energy Alliance LLC.checked 8 Oct 2026
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