regression-io/claude-config-plugins/dependencies

myproject/
├── pyproject.toml      # Project config (preferred)
├── requirements.txt    # Or traditional requirements
├── src/
│   └── myproject/
│       ├── __init__.py
│       └── main.py
├── tests/
│   └── test_main.py
└── .venv/              # Virtual environment (gitignored)

# Create
python -m venv .venv
 
# Activate
source .venv/bin/activate  # Unix
.venv\Scripts\activate     # Windows
 
# Always use virtual environments
# Never install globally with sudo pip

[project]
name = "myproject"
version = "0.1.0"
requires-python = ">=3.10"
dependencies = [
    "fastapi>=0.100.0",
    "pydantic>=2.0",
]
 
[project.optional-dependencies]
dev = [
    "pytest>=7.0",
    "ruff>=0.1.0",
    "mypy>=1.0",
]
 
[tool.ruff]
line-length = 88
select = ["E", "F", "I", "N", "W"]
 
[tool.mypy]
strict = true

# Install with dev deps
pip install -e ".[dev]"
 
# Format and lint
ruff check --fix .
ruff format .
 
# Type check
mypy src/
 
# Run tests
pytest -v --cov=src