Reference

PyPI protocol and configuration details.

• Standards

  Packaging PEPs and specifications implemented by the PyPI ecosystem.

• HTTP endpoints

  The routes every index serves, plus health and metrics.

• Upload rules

  The exact upload checks peryx runs: wheel .dist-info matching, the digest fields it verifies, PEP 440 version matching for admin operations, and the mutation paths for verb-named projects, with every accept/reject table and error string.

• Simple API serving

  Simple API version derivation, gpg-sig retention, provenance, and slashless URL redirects.

• Mirroring

  Select, sync, and verify PyPI projects and artifacts.

• Availability behavior

  Python package authority keys, replica reads, upload retries, reclamation references, and log fields.

• PyPI changelog compatibility

  The Warehouse XML-RPC routes, journal contract, and mirror recovery procedure.

• Policy settings

  PyPI-specific fallback, version, distribution, wheel-tag, release-age, and attestation policy.

• Shadowed candidates

  Inspect the Python distribution selected from a virtual index and the candidates it shadows.