Dependency Skill

Dependency Skill

Purpose

Manage Python dependencies efficiently using the uv package manager.

Instructions

Initialize a new project

uv init

Add production dependencies

uv add typer rich textual pydantic tinydb questionary pyfiglet python-dateutil

Add development dependencies

uv add --dev pytest pytest-cov black ruff mypy

Sync dependencies (install from lock file)

uv sync

Run scripts

uv run python -m package_name.main
uv run pytest

Update dependencies

uv lock --upgrade
uv sync

Remove a dependency

uv remove package-name

Common Dependency Sets

Todo App Dependencies

# Core
uv add typer rich textual pydantic tinydb questionary pyfiglet python-dateutil

# Development
uv add --dev pytest pytest-cov black ruff

Web App Dependencies

uv add fastapi uvicorn sqlmodel httpx

Examples

Full project setup

# Initialize
uv init

# Add all dependencies at once
uv add typer[all] rich textual pydantic tinydb questionary pyfiglet python-dateutil

# Add dev dependencies
uv add --dev pytest pytest-cov

# Sync to install
uv sync

# Verify installation
uv run python -c "import rich; print(rich.__version__)"

Best Practices

• Always use uv instead of pip for modern Python projects
• Lock dependencies with uv.lock for reproducibility
• Separate dev dependencies from production
• Run commands with uv run to ensure correct environment
• Update dependencies regularly with uv lock --upgrade

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