PolicyEngine/policyengine.py

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PolicyEngine's main user-facing Python package, incorporating country packages and integrating data visualization and analytics.

Stars: 7
Forks: 9
Open beginner issues: 0
Indexed issues: 30
Avg merge: 15h 51m
Merged PRs (30d): 9

Dominant language: Python
License: AGPL-3.0
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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30 issues indexed so far

Preserve nullable SPM statuses in wrapper summaries and JSON Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PolicyEngine/policyengine.py#518 · Opened Sep 14, 2026
Add a stable behavior-input boundary for population data Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PolicyEngine/policyengine.py#510 · Opened Aug 31, 2026
Add source-only Armenia Axiom integration Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

PolicyEngine/policyengine.py#509 · Opened Aug 30, 2026
NZ source-only Axiom transport and entitlement smoke Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

PolicyEngine/policyengine.py#507 · Opened Aug 30, 2026
New Zealand pilot: run Axiom rules over Microcosm NZ Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

PolicyEngine/policyengine.py#506 · Opened Aug 29, 2026
ensure_datasets: consume Microcosm-published UK releases (manifest-verified), so analyses can swap bases by URI Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

PolicyEngine/policyengine.py#495 · 2 comments · Opened Aug 17, 2026
Adopt Microcosm naming (populace-data → microcosm-data, legacy-aware certification) Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

PolicyEngine/policyengine.py#490 · Opened Aug 7, 2026
LRUCache.add silently keeps the old value for an existing key Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

PolicyEngine/policyengine.py#487 · Opened Jul 23, 2026
Port some features from uk-chat into `.py` itself Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

PolicyEngine/policyengine.py#484 · Opened Jul 23, 2026
PolicyEngineUKDataset.load() raises KeyError: 'person_weight' for directly-supplied UK datasets Open

Difficulty 3/5 1-2 days Newbie friendliness 78/100

PolicyEngine/policyengine.py#478 · Opened Jul 20, 2026
README population quickstart still teaches enhanced_frs_2023_24 Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

PolicyEngine/policyengine.py#473 · Opened Jul 16, 2026
Add a versioned execution receipt contract Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PolicyEngine/policyengine.py#468 · Opened Jul 10, 2026
Promotion certification suite: pre-registered out-of-sample scorecard at default-flip time Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PolicyEngine/policyengine.py#462 · 1 comment · Opened Jul 7, 2026
Axiom-engine pilot model version for Nigeria (rulespec-ng) Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

PolicyEngine/policyengine.py#461 · Opened Jul 7, 2026
Axiom-engine pilot model version for Ghana (rulespec-gh) Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

PolicyEngine/policyengine.py#460 · Opened Jul 7, 2026
Household results return numeric indices for enum variables (state_code -> 4.0, filing_status -> 0.0) Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

PolicyEngine/policyengine.py#459 · Opened Jul 7, 2026
Simulation cache is write-only: uuid4 keys mean ensure() never reloads results, and data_folder accumulates orphaned h5 files Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PolicyEngine/policyengine.py#455 · Opened Jul 7, 2026
Add a datasets-only mode to `policyengine bundle install` (inverse of --no-datasets) Open

Difficulty 4/5 3-5 days Newbie friendliness 58/100

PolicyEngine/policyengine.py#452 · 1 comment · Opened Jul 3, 2026
Remove regional H5 path templates from US Populace release contract Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

PolicyEngine/policyengine.py#445 · Opened Jul 1, 2026
Bump (or relax) the policyengine-us pin — 1.729.0 is behind 1.742.0 Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

PolicyEngine/policyengine.py#436 · 1 comment · Opened Jun 24, 2026
Certify populace-uk as the UK certified default Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

PolicyEngine/policyengine.py#408 · Opened Jun 13, 2026
Compute labor supply response revenue_change instead of preserving legacy zero Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PolicyEngine/policyengine.py#369 · Opened May 19, 2026
examples/us_budgetary_impact.py consumes excessive memory (peak ~7.5 GB RSS / 82 GB VMS) Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PolicyEngine/policyengine.py#328 · 1 comment · Opened May 1, 2026
Local reproducibility snapshots for researchers using the Python package Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

PolicyEngine/policyengine.py#320 · Opened Apr 21, 2026
Capture compute / runtime environment in TROs (container SHA, Python version, cloud region) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PolicyEngine/policyengine.py#319 · Opened Apr 21, 2026
Represent restricted-input provenance in TROs (UK FRS, IRS PUF) via external-DOI pinning Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PolicyEngine/policyengine.py#318 · Opened Apr 21, 2026
Contribute PolicyEngine vocabulary patterns to TRACE / TROv Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

PolicyEngine/policyengine.py#316 · Opened Apr 21, 2026
UK: structural reforms gated on `*.in_effect=True` silently no-op via `simulation_modifier` path Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

PolicyEngine/policyengine.py#302 · Opened Apr 20, 2026
Drop Python 3.9 support (cleanup checklist) Open

Difficulty 5/5 3-5 days Newbie friendliness 35/100

PolicyEngine/policyengine.py#279 · Opened Apr 17, 2026
Make `policyengine.py` the immutable release boundary for country model and data versions Open

code-health enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

PolicyEngine/policyengine.py#270 · 1 comment · Opened Apr 10, 2026

PolicyEngine/policyengine.py

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