# RC-024: Review of PY-MIL-002

## Metadata
| Key | Value |
| --- | --- |
| ID | RC-024 |
| CrossReference | [PY-MIL-002], [QC-PY-001] |

## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-14 | Accepted | Jens Tirsvad Nielsen | AI as stand-in for S01 | Initial version | pending |

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## Artifact Under Review

- Instance reviewed: [PY-MIL-002]
- Checklist used: [QC-PY-001]
- Scope: full review
- Language and domain: n/a (technical type)
- Language reviewer: none
- Mode: autonomous, not independent (reviewer is `AI as stand-in for S01`)

## Checklist Results

| # | Criterion | Status | Evidence/Notes |
| --- | --- | --- | --- |
| 1 | Packages, modules, functions, variables, classes and constants follow PEP 8 casing (`snake_case`, `PascalCase`, `UPPER_SNAKE`) | Pass | Modules, classes and functions use snake_case and PascalCase; ruff rule set N passes on `src`, `tests` and `tools`. |
| 2 | Names state purpose in the domain's language; no unexplained abbreviations, no single-letter names outside tiny scopes | Pass | Names state purpose (`FlashCardView`, `language_text_id`, `generate_images`). |
| 3 | Code is produced by the project's formatter and passes its linter with no unexplained suppressions | Pass | `ruff check` and `ruff format --check` pass with no suppressions. |
| 4 | Every function and method signature is type-annotated, including `-> None` | Pass | Every signature is annotated; `mypy --strict` passes on 13 source files and on `tools/generate_images.py`. |
| 5 | No bare `except:`, no swallowed exceptions; specific exceptions are raised and the cause is kept (`raise ... from`) | Pass | The only `except` is `tk.TclError` in the e2e fixture, used to skip when no display exists; none is bare or swallowed silently. |
| 6 | No mutable default arguments and no shadowed builtins | Pass | No mutable defaults, no builtin shadowed. |
| 7 | Files, locks and connections are managed with context managers | Pass | Files are written with `Path.write_bytes`; the Tk root is destroyed in the fixture teardown. |
| 8 | Public modules, classes and functions have docstrings that say what, not how | Pass | Public modules, classes and functions have Doxygen docstrings; `doxygen Doxyfile` ends with 0 warnings. |
| 9 | Logging uses `logging`, not `print`; no secrets or personal data in log output | Pass | No `print`; no logging is needed in a view. |
| 10 | Classes and operations trace to the Design Class Diagram they implement; deviations are recorded | Pass | `FlashCardView` and `FlashCardViewModel` are classes of DCD-001 with the names and responsibilities given there; `create_application` is the composition root `app.main` of DCD-001. |
| 11 | Tests exist for new behaviour, are named for the behaviour, and do not depend on order or the network | Pass | 18 tests: view model, image generator, application entry, and 5 e2e tests of the real window (not skipped on this machine); none uses the network. |
| 12 | Type checker runs in strict mode without errors; `Any` is justified in a comment | Pass | `mypy --strict` reports no issue; no `Any`. |
| 13 | Dependencies are declared and pinned in the project's dependency file, none unused | Pass | `dependencies` stays empty; the tool uses the standard library only. |
| 14 | Each piece of knowledge (a business rule, constant, format, validation or query) is defined in one place; code is merged only where it expresses the same knowledge, not where it merely looks alike | Pass | Colours, sizes, fonts and file names come from `constants.py` once; the image generator reads sizes from it. |
| 15 | Imports point inward: business-rule modules import no framework, database, UI or delivery-mechanism code, and there are no import cycles | Pass | `lint-imports` reports `Layers point inward` kept; the view model imports no Tkinter. |
| 16 | SOLID holds: a class or module has one reason to change; new behaviour is added by extension, not by editing a type test in several places; subclasses honour the contract of their base; protocols are narrow; high-level code depends on protocols or abstract types and receives its implementations | Pass | The view only builds widgets; the texts come from the view model (single responsibility); nothing is switched on type. |
| 17 | Source is laid out in the layers and folders of the clean architecture folder structure (`domain`, `application`, `infrastructure`, `presentation` packages under `src/`, and `unit`, `integration` and `e2e` under `tests/`), in `snake_case`, and imports between the layers point inward | Pass | `presentation/features/flash_card/` holds view and view model as the clean-architecture skill's default layout; tests are in `unit` and `e2e`. |
| 18 | File and folder names are English, contain no space and no character outside letters, digits, `-`, `_` and `.`, and follow the casing of the language for files | Pass | File and folder names are English snake_case; no space. |

## Overall Verdict

Go — every Mandatory criterion passes. Reviewed by AI as stand-in for S01; not independent of the author.

Milestone MIL-002 Go criteria: 1 title, colour and padding asserted by the e2e test; 2 canvas 800 x 526 with one image and two texts (Arial 40 italic, Arial 60 bold) asserted; 3 buttons use `wrong.png`/`right.png`, bd 0, grid row 1 columns 0 and 1 asserted; 4 the view model supplies the texts and its tests import no Tkinter; 5 this record; 6 `pytest` 18 passed. All Go. The generated card images were inspected by eye.

## Action Items

| Action | Owner | Due |
| --- | --- | --- |
| none | - | - |

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[PY-MIL-002]: ../../../src/flash_card/presentation
[QC-PY-001]: ../../../framework/qc/code/qc-programming-python.md