61 lines
5.9 KiB
Markdown
61 lines
5.9 KiB
Markdown
# RC-011: Code review of MIL-003 (the pandas analysis: read_data to day_in_fahrenheit)
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## Metadata
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| Key | Value |
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| --- | --- |
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| ID | RC-011 |
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| CrossReference | [MIL-003], [QC-PY-001] |
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## Version History
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| Date | Status | Author | Reviewer | Change | Commit |
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| --- | --- | --- | --- | --- | --- |
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| 2026-10-13 | Proposed | Jens Tirsvad Nielsen | AI as stand-in for S01 | Initial version | pending |
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---
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## Artifact Under Review
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- Instance reviewed: the source and tests that [MIL-003] delivers (the pandas analysis: read_data to day_in_fahrenheit)
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- Checklist used: [QC-PY-001]
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- Scope: full review of the files changed on the branch of the milestone
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- Language and domain: n/a
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- Language reviewer: none
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- Mode: autonomous, not independent (the reviewer is `AI as stand-in for S01`; the assistant also wrote the code; the review of the files was done by the `python-developer` agent of the session)
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## Checklist Results
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| # | Criterion | Status | Evidence/Notes |
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| --- | --- | --- | --- |
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| 1 | Packages, modules, functions, variables, classes and constants follow PEP 8 casing (`snake_case`, `PascalCase`, `UPPER_SNAKE`) | Pass | `analysis`, `read_data`, `to_data_dict`, `to_temp_list`, `average_temp`, `max_temp`, `row_for_day`, `hottest_row`, `day_in_fahrenheit` are `snake_case`. |
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| 2 | Names state purpose in the domain's language; no unexplained abbreviations, no single-letter names outside tiny scopes | Pass | Names are the lectures' (`temp_list`, `average_temp`, `data`, `rows`); `celsius` states the unit. |
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| 3 | Code is produced by the project's formatter and passes its linter with no unexplained suppressions | Pass | `ruff check` and `ruff format --check` exit 0. One suppression exists, `# noqa: E402` in `tests/test_analysis.py`, and it is explained: the import must follow `pytest.importorskip("pandas")` so that the module is skipped when the extra is missing. |
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| 4 | Every function and method signature is type-annotated, including `-> None` | Pass | Every function is annotated, including the return types `pandas.DataFrame`, `list[int]`, `float` and `int`; the tests are annotated `-> None`. |
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| 5 | No bare `except:`, no swallowed exceptions; specific exceptions are raised and the cause is kept (`raise ... from`) | Pass | `day_in_fahrenheit` raises a specific `ValueError` with the day and the row count when the day is not in the table exactly once; nothing is caught or swallowed. |
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| 6 | No mutable default arguments and no shadowed builtins | Pass | The only default is an immutable `DATA_FILE`; no builtin is shadowed. |
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| 7 | Files, locks and connections are managed with context managers | N-A | The module opens no file itself; `pandas.read_csv` opens and closes the file. |
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| 8 | Public modules, classes and functions have docstrings that say what, not how | Pass | Module docstring and Doxygen `@brief`, `@param`, `@return` (and `@throws`) on every function; `doxygen Doxyfile` exits 0 with no warnings. |
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| 9 | Logging uses `logging`, not `print`; no secrets or personal data in log output | N-A | The module neither logs nor prints. |
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| 10 | Classes and operations trace to the Design Class Diagram they implement; deviations are recorded | Pass | No Design Class Diagram exists (a learning project of this size, recorded in the open issues of [PP-001]); the functions trace to the lectures and to the tasks of [MIL-003]. |
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| 11 | Tests exist for new behaviour, are named for the behaviour, and do not depend on order or the network | Pass | `tests/test_analysis.py` has 13 tests named for behaviour, one for each Go/No-Go criterion of [MIL-003] plus the empty result for an unknown day; none depends on order or the network; `pytest` reports 27 passed. |
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| 12 | Type checker runs in strict mode without errors; `Any` is justified in a comment | Pass | `python -m mypy` runs with `strict = true`: no issues in 8 source files. The one `Any` is `dict[Hashable, Any]` of `to_data_dict`, justified in a comment (the cell values of the table are heterogeneous) and given by the signature of `DataFrame.to_dict`. |
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| 13 | Dependencies are declared and pinned in the project's dependency file, none unused | Pass | `pandas` and `pandas-stubs` are declared in the `pandas` and `dev` extras with lower bounds and are used; `dependencies = []` is unchanged and `csv_reader` still imports no `pandas`. |
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| 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 | Column names and Fahrenheit factors come from `constants.py`; the maximum is stated once (`max_temp`, reused by `hottest_row`); the temperature list is stated once (`to_temp_list`, reused by `average_temp`). |
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| 15 | Imports point inward: business-rule modules import no framework, database, UI or delivery-mechanism code, and there are no import cycles | Pass | `analysis` imports `pandas` and `weather.constants`; no import cycle; `csv_reader` does not import `analysis`. |
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| 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 | Small functions with one reason to change each; no class hierarchy. |
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## Overall Verdict
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Go — all Mandatory criteria pass or are not applicable. Assessed on 2026-10-13 by the assistant that wrote the code, as stand-in for S01 in autonomous mode. Mode: autonomous, not independent. The pull request is the second look.
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## Action Items
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| Action | Owner | Due |
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| --- | --- | --- |
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| Challenge this `Go` in the run summary or on the pull request if the stand-in decision is not wanted | S01 | 2026-10-23 |
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---
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[MIL-003]: ../../milestones/mil-003-pandas-analysis.md
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[QC-PY-001]: ../../../framework/qc/code/qc-programming-python.md
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[PP-001]: ../../project-plan.md
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