# Packaged copies The canonical files live in the repository's `spec/` folder (`mews-0.1.css` and `mews-0.1.dtd`), where SPEC.md and `spec/check_dtd.py` reference them. These copies exist so the validator still finds them when it is installed as a wheel, with nothing but the package on disk. `tests/test_data.py` at the repository root fails if a copy and its original drift apart.