Model/packages
Khalim Conn-Kowlessar 375b0e895e add missing ucl.py and _fixtures.py from slices 2-3
Previous slice commits used -a-style and missed these new files;
imports in transform.py and test_transform.py would dangle on a
fresh checkout. Re-running pytest after this commit covers all four
EpcMlTransform tests cleanly.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-16 14:43:09 +00:00
..
domain add missing ucl.py and _fixtures.py from slices 2-3 2026-05-16 14:43:09 +00:00
fetchers added potential file scaffolding: 2026-05-15 10:56:53 +00:00
repos added potential file scaffolding: 2026-05-15 10:56:53 +00:00
utils added potential file scaffolding: 2026-05-15 10:56:53 +00:00
README.md added potential file scaffolding: 2026-05-15 10:56:53 +00:00

Shared packages

Workspace packages consumed by services/*. Each package is its own Python distribution with its own pyproject.toml; services import via the workspace dependency mechanism ({ workspace = true }).

Package Purpose
domain/ Shared domain types — Property, BaselinePerformance, Plan, Scenario, EpcPropertyData, etc. No persistence, no IO, no business logic.
repos/ Persistence layer — one repo per aggregate. Owns the SQL. Depends on domain.
fetchers/ External API clients (gov EPC, Ofgem, Google Solar, etc.). Depend on domain for response shapes.
utils/ Cross-cutting infra — logging, S3, CloudWatch URL builders, SQS task helpers.

Adding a new shared package

Only when a real second consumer materialises. Don't pre-shatter (repos-epc, repos-property, ...) — split when a deployment needs to drop a dep, not before.

See ../ara_backend_design.md §11 for the broader monorepo layout and ../CONTEXT.md for the domain glossary that names the types living in domain/.