python-conventions

Development

Creating or modifying Python code in packages/python_viterbo. Covers directory layout, stage entrypoints, config files, data outputs, tests, lint commands.

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Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/data/python-conventions/SKILL.md

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Python Conventions

Example: example-pipeline

Study src/viterbo/experiments/example_pipeline/ before creating experiments:

src/viterbo/experiments/example_pipeline/
├── SPEC.md           # Research question, method, success criteria
├── stage_build.py    # Stage 1: generate data
├── stage_analyze.py  # Stage 2: compute results
└── stage_plot.py     # Stage 3: create figures

config/example-pipeline/
└── default.json      # Parameters for reproducible runs

data/example-pipeline/
├── synthetic_data.json
└── results.json

tests/test_example_pipeline.py

Run stages:

uv run python -m viterbo.experiments.example_pipeline.stage_build
uv run python -m viterbo.experiments.example_pipeline.stage_analyze
uv run python -m viterbo.experiments.example_pipeline.stage_plot

Directory Layout

All paths relative to packages/python_viterbo/:

Artifact	Path
Experiment code	`src/viterbo/experiments/<label>/`
Stage entrypoints	`src/viterbo/experiments/<label>/stage_<name>.py`
Spec	`src/viterbo/experiments/<label>/SPEC.md`
Configs	`config/<label>/<variant>.json`
Data artifacts	`data/<label>/`
Tests	`tests/test_<label>.py`
Thesis assets	`../latex_viterbo/assets/<label>/`

Commands

cd packages/python_viterbo
uv sync --extra dev          # Install dependencies
uv run ruff format .         # Format
uv run ruff check --fix .    # Lint
uv run pyright               # Type check
uv run pytest tests/         # Test

Code Style

Docstrings: inputs, outputs, shapes/dtypes
Pure functions preferred
Comments explain WHY, not WHAT