Purpose¶

You want to isolate domain from infrastructure. Ports (interfaces) live in domain, adapters depend on domain but not vice versa. Each bounded context should only depend on its own domain.

Configuration¶

Using named captures, you can enforce that each bounded context only depends on its own domain:

rules:
  - name: domain-no-infra
    modules: contexts.{context}.domain
    allow:
      standard_library: [dataclasses, typing, abc]
      third_party: []
      local: [contexts.{context}.domain, shared.domain]

  - name: adapters-depend-on-domain
    modules: contexts.{context}.adapters
    allow:
      standard_library: ["*"]
      third_party: ["*"]
      local:
        - contexts.{context}.adapters
        - contexts.{context}.domain
        - shared

Result¶

With {context}, contexts.boards.domain can only import from contexts.boards.domain and shared.domain — not from contexts.auth.domain:

contexts/boards/domain/service.py:2
    [domain-no-infra] contexts.boards.domain.service → contexts.auth.domain.models (local)

Found 1 violation(s).