Retry on advanced-alchemy wrapped exceptions#12
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Walk the __cause__/__context__ chain in _retry_handler so postgres_retry fires when the retriable DBAPIError has been re-raised by advanced-alchemy's wrap_sqlalchemy_exception() as a RepositoryError / IntegrityError. Closes #11. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
_retry_handlernow walks the__cause__/__context__chain (with aseencycle guard) sopostgres_retryfires when the retriableDBAPIErrorhas been re-raised by advanced-alchemy'swrap_sqlalchemy_exception()as aRepositoryError/IntegrityError.advanced-alchemyadded to the dev dependency group only — no new runtime dependency; the chain walk is library-agnostic.test_postgres_retry_advanced_alchemycovers SQLSTATEs08000/08003/40001(retried) and40002(not retried) through the wrapped-exception path.Closes #11.
Test plan
uv run ruff format/ruff checkcleanuv run ty checkcleanpytestin docker — 21/21 pass, 100% coverage ondb_retry/retry.py🤖 Generated with Claude Code