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