Petra
Petra checks a physical design against the claims written in it. A design is a short .petra file that describes a steel connection, a truss, a wire circuit or a bolted joint. Petra answers pass, fail, marginal or unknown, and backs every pass and fail with a certificate that a small kernel re-checks in exact arithmetic.
Petra checks the loads a design states. It does not choose them, and it does not replace the engineer who signs the design.
Install
pip install petra-lang
Use
petra new shear_tab > tab.petra
petra check tab.petra
petra new prints an example design to edit. petra check prints the verdict, the check that governs it, and every check behind it. petra kinds lists what Petra can check, and petra docs lists the documents that ship with it.
Learn more
- Language reference
- Using Petra from Python
- How the checker works
- Steel connections
- Roadmap and test results
License
Code is under Apache-2.0 and docs are under Creative Commons Attribution 4.0. To send a change, read contributing.
1 maintainer
Metadata
1 maintainer
Release files for petra-lang 0.1.0
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| petra_lang-0.1.0.tar.gz | 400.0 kB | With provenance | Details for petra_lang-0.1.0.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| petra_lang-0.1.0-py3-none-any.whl | Python 3 | none | any | Details for petra_lang-0.1.0-py3-none-any.whl |
Total release size: 852.7 kB
Release files / petra_lang-0.1.0.tar.gz
| Download URL | petra_lang-0.1.0.tar.gz |
|---|---|
| Size | 400.0 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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| Download URL | petra_lang-0.1.0-py3-none-any.whl |
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| Size | 452.7 kB |
| Tags | Python 3 |
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SHA-256 checksum How to use checksums |
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Yes |
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twine/7.0.0 CPython/3.13.16
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Signed by GitHub Actions, verified by PyPI on Nov 7, 2026.
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