wh40kdc

The 40kdc Warhammer 40K dataset behind a linked, typed API — find units, follow them to their weapons, abilities, phases, and factions. The Python counterpart to @alpaca-software/40kdc-data (npm) and wh40kdc (crates.io), held in behavioral lockstep with both by the shared conformance corpus in the 40kdc-data repository.

pip install wh40kdc

from wh40kdc import Dataset

ds = Dataset.embedded()
unit = ds.units.find("Khârn the Betrayer")
for weapon in unit.weapons:
    print(weapon.name)

What ships:

  • Linked dataset API — Dataset with id/name lookups (diacritic- and punctuation-insensitive), reverse indexes, and join queries across units, weapons, abilities, phases, and factions.
  • Importers — ListForge, NewRecruit (JSON / WTC-compact / WTC-full / simple), GW app export, and Rosterizer, all resolving to one Roster shape.
  • Exporters — the same roster formats back out, byte-identical to the TypeScript and Rust implementations.
  • Cruncher — the damage-projection engine (attacks → hits → wounds → unsaved → damage → after-FNP → models-killed) with buff resolution and per-buff attribution.
  • Scoring, terrain, translation — secondary-mission scoring, terrain layout resolution and keystone measurements, and the ability-DSL / scoring-card describers.
  • Validator — validate(target, value) against the canonical JSON Schemas, emitting the closed error-code enum shared by all implementations.

The conformance runner (used by the cross-implementation parity differ) is invoked as python -m wh40kdc.runner — see conformance/RUNNER_PROTOCOL.md in the repository.

Development

cd python
uv venv && uv pip install -e ".[dev]"
pytest          # includes the conformance suite when run inside the repo
ruff check .
mypy src

Generated artifacts (_bundle.json, _spec.py, _types.py, src/wh40kdc/schemas/) are produced by the scripts in codegen/ and checked for drift in CI — regenerate with:

python3 codegen/sync_bundle.py && python3 codegen/sync_spec.py && python3 codegen/gen_typeddicts.py

License

MIT. The schema content the dataset describes is CC0; enrichment data is CC BY 4.0 — see the repository's licensing table.

Project links

Data verified by PyPI on Sep 2, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

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Latest release

1 maintainer

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Avatar for TheAlpacalypse from gravatar.com TheAlpacalypse

Credits

Author: Alpaca Software

GitHub Statistics

Data verified by PyPI on Sep 2, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT
View SPDX License List

Requires

Python >=3.11

Provides Extra

dev

Tags

40k dataset schema wargaming warhammer

Classifiers

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