feat: implement PEP 808 — partially dynamic metadata#314
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Allow array and table fields (dependencies, classifiers, entry-points, scripts, gui-scripts, keywords, license-files, optional-dependencies, urls, authors, maintainers, import-names, import-namespaces) to be both statically defined in [project] and listed in project.dynamic. String fields (version, description, requires-python, readme, license) remain prohibited from being both static and dynamic. - Add _DYNAMIC_TABLE_ARRAY_FIELDS frozenset to extra_validations.py - Update validate_project_dynamic() to skip check for list/table fields - Update RedefiningStaticFieldAsDynamic description and URL for PEP 808 - Convert entry-points invalid example to valid partially-dynamic example - Update pdm/redefining-as-dynamic to test description (string field) - Add invalid example for static version listed as dynamic - Add valid examples for partially-dynamic dependencies and entry-points Assisted-by: OpenCode:glm-5
henryiii
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May 25, 2026
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| _URL = ( | ||
| "https://packaging.python.org/en/latest/specifications/pyproject-toml/#dynamic" | ||
| ) | ||
| _URL = "https://peps.python.org/pep-0808/" |
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This is technically correct short-term, but we'll be updating the spec soon, so keeping it is probably better.
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Summary
Implements PEP 808 — partially dynamic metadata, which relaxes the constraint that fields listed in
project.dynamicmust not also be statically defined in the[project]table.Changes
extra_validations.py: Added_DYNAMIC_TABLE_ARRAY_FIELDSfrozenset listing the 13 fields PEP 808 allows to be partially dynamic (authors,maintainers,classifiers,dependencies,entry-points,scripts,gui-scripts,keywords,license-files,optional-dependencies,urls,import-names,import-namespaces). Updatedvalidate_project_dynamic()to skip the static+dynamic check for these fields. String fields (version,description,requires-python,readme,license) remain prohibited from being both static and dynamic.RedefiningStaticFieldAsDynamicerror description and URL to reference PEP 808.description(a string field) instead ofclassifiers.versionlisted as dynamic.dependenciesandentry-points.Assisted-by: OpenCode:glm-5