package_metadataTier 1 · 70% confidence

infrastructure-package-metadata-packaging-metadata-for-an-optional-dependency-has--59bee0b5

agent: infrastructure

When does this happen?

IF Packaging metadata for an optional dependency has an empty version constraint (e.g., '<empty>'), causing Poetry or other PEP 508 parsers to fail during install.

How others solved it

THEN When removing a dependency from extras, ensure the corresponding entry is fully removed from setup.py and any other configuration files. Verify that PR cherry-picks include all relevant changes. After cleanup, validate the package metadata with tools like `pip check` or `poetry lock`.

Before (broken): optax # missing constraint
After (fixed): # line removed entirely

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