PERF: Lazily load exports infrastructure - #2455
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Richard Lundeen (rlundeen2) merged 2 commits intoAug 22, 2026
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Defer model re-exports until first access and add a repository-wide lazy package contract test with a ratcheting eager-package exception list. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: d2bd1e1d-bef9-454a-b04a-be5fde48fcab
This was referenced Aug 21, 2026
Richard Lundeen (rlundeen2)
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Exercise model package dir hooks and export resolution in the coverage process so diff coverage includes the PEP 562 contract. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: d2bd1e1d-bef9-454a-b04a-be5fde48fcab
Roman Lutz (romanlutz)
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Very interesting!
Richard Lundeen (rlundeen2)
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August 22, 2026 03:22
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Description
This is the first PR in a two-PR change stack. Follow-up: #2456.
Add a shared PEP 562 lazy-import helper that resolves and caches package exports on first access while exposing unresolved names through
dir().Migrate all public
pyrit.modelspackage exports to this contract._LAZY_EXPORTSis the runtime source of truth,__all__derives from it, andTYPE_CHECKINGimports preserve editor and static-analysis support. Existing named imports and object identity remain compatible.Add focused helper tests and a repository-wide package contract test. The contract test discovers every package initializer, validates migrated packages, spot-checks model imports, and maintains an exact exception ratchet for packages that remain eager.
Tests and Documentation
python -m pytest -q tests\unit\common tests\unit\models— 1,426 passedSKIP=ty-check python -m pre_commit run --all-files— passedty-checkhook was stopped after it stalled in the local environment.