chore(deps): update policyengine to 4.18.9#601
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Pulls in the dataset-autosave-corruption fix (policyengine.py #450): the region-scoped dataset copy no longer overwrites the shared single-year file baked into the Modal image, which was crashing state runs and silently corrupting national results in reused containers. No worker code change needed. Companion model pins unchanged; uv lock resolves cleanly. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Fixes #600
What
Bumps the simulation worker's
policyenginepin from4.18.8to4.18.9and relocksuv.lock.Why
policyengine 4.18.9 ships the dataset-autosave-corruption fix (policyengine.py #450, issue #449). In 4.18.8, constructing a region-scoped dataset copy auto-saved over the shared single-year file baked into the Modal image, corrupting it inside reused containers — crashing subsequent state runs (
No households found matching state_fips=N) and silently computing national results on one state's data. 4.18.9 removes the construction-time autosave and builds scoped copies withfilepath=None.Changes
projects/policyengine-api-simulation/pyproject.toml:policyengine==4.18.8→4.18.9(one line).projects/policyengine-api-simulation/uv.lock: relocked (policyengine v4.18.8 -> v4.18.9; no other packages changed).No worker code change is required — the corruption occurred entirely inside policyengine.py's
run().Verification
uv lockresolved cleanly with companion pins (policyengine-core,policyengine-us,policyengine-uk) unchanged.model_post_initno longer callsself.save(), and the US/UK region-scoped copies usefilepath=None.ruff format --checkclean (no Python changed). No changelog mechanism in this repo.Not run locally: Modal deploy — the merge triggers the deploy pipeline, which rebuilds the image on the new policyengine version (the single-year prebuild layers rerun on the version bump, ~1 min). CI on this PR is the source of truth.