majiayu000/claude-arsenal
xiaohongshu
xiaohongshu
286 148
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Astral UV
astral-uv
Fast Python package and project management using Astral's uv. Use when installing packages, managing virtual environments, running Python scripts, or initializing Python projects. Triggers on: pyproject.toml, requirements.txt, Python dependency discussions, virtual environment setup.
SKILL.md
Full skill instructions
Astral UV
UV is an extremely fast Python package installer and resolver written in Rust.
Quick Reference
| Task | Command |
|---|---|
| Create venv | uv venv |
| Install package | uv pip install <pkg> |
| Add dependency | uv add <pkg> |
| Run script | uv run <script.py> |
| Sync dependencies | uv sync |
| Init project | uv init |
Project Management
Initialize a new project:
uv init my-project
cd my-project
Add dependencies (updates pyproject.toml automatically):
uv add requests httpx
uv add --dev pytest ruff
Sync environment with lockfile:
uv sync
Running Code
Run scripts without manual venv activation:
uv run python script.py
uv run pytest
uv run ruff check .
Run with inline dependencies:
uv run --with requests script.py
Virtual Environments
uv venv # Create .venv
uv venv --python 3.12 # Specific Python version
pip Interface
Drop-in pip replacement (10-100x faster):
uv pip install requests
uv pip install -r requirements.txt
uv pip compile requirements.in -o requirements.txt
Python Version Management
uv python install 3.12 # Install Python version
uv python list # Show available versions
uv python pin 3.12 # Pin version for project
Best Practices
- Prefer
uv addoveruv pip installfor project dependencies - Use
uv runinstead of activating venvs manually - Commit
uv.lockto version control - Use
uv sync --frozenin CI for reproducible builds - Add dev dependencies with
uv add --dev
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