laurigates/claude-plugins

uv-run

Run Python scripts with uv (PEP 723 inline deps, --with for one-off deps).

Quelltext ansehen

Verwendung

  1. Installationsbefehl kopieren und das Quellpaket vor der Installation in der eigenen Agentenumgebung prüfen.
  2. Benötigte Werkzeuge, Zugangsdaten und Hosts im Original prüfen.
  3. Eingabe und gewünschtes Ergebnis beschreiben und die Ausgabe mit den Quellen abgleichen.
npx skills add https://github.com/laurigates/claude-plugins --skill uv-run

Vor dem Start

  • Die Installation umfasst weder Modellabo noch API-Kontingent oder Dateizugriffsrechte.
  • Sterne und Installationen zeigen Aktivität, keine unabhängige Qualitäts- oder Sicherheitsprüfung.
Originales Skill-Dokument

Aus dem Quell-Repository gerendert; Überschriften, Beispiele, Code, Tabellen, Links und Bilder bleiben erhalten.

UV Run

Run Python scripts with uv - no manual venv activation needed.

When to Use This Skill

Use this skill when...Use a focused sibling instead when...
Running a one-off script with uv run script.py and no project contextAdding a long-lived dependency to a project — use uv-project-management
Embedding PEP 723 inline metadata or --with deps into a self-contained scriptInstalling a global CLI tool (uv tool install / uvx) — use uv-tool-management
Executing project commands inside the project venv without manual activationAuthoring the project's pyproject.toml or lockfile — use uv-project-management

Core Capabilities

  • Direct execution: uv run script.py handles environment automatically
  • Temporary dependencies: uv run --with requests script.py for one-off needs
  • Inline dependencies: PEP 723 metadata blocks for self-contained scripts
  • Ephemeral tools: uvx tool runs CLI tools without installation

Essential Commands

Running Scripts

bash
# Run script (uv manages environment automatically)
uv run script.py

# Run with arguments
uv run script.py --input data.csv --output results.json

# Run a specific module
uv run -m http.server 8000

# Run with specific Python version
uv run --python 3.12 script.py

Temporary Dependencies

Add dependencies for a single run without modifying project:

bash
# Single dependency
uv run --with requests fetch_data.py

# Multiple dependencies
uv run --with requests --with rich api_client.py

# Version constraints
uv run --with 'requests>=2.31' --with 'rich>12,<14' script.py

# Combine with project dependencies
uv run --with pytest-benchmark pytest  # Add benchmark to existing pytest

Inline Script Dependencies (PEP 723)

Create self-contained scripts with embedded dependencies:

python
#!/usr/bin/env -S uv run --script
# /// script
# requires-python = ">=3.11"
# dependencies = [
#   "requests>=2.31",
#   "rich>=13.0",
# ]
# ///

import requests
from rich import print

response = requests.get("https://api.github.com")
print(response.json())

Run directly:

bash
uv run script.py

# Or make executable:
chmod +x script.py
./script.py

Managing Script Dependencies

bash
# Initialize script with metadata
uv init --script example.py --python 3.12

# Add dependency to script
uv add --script example.py requests rich

# Lock script dependencies for reproducibility
uv lock --script example.py

Ephemeral Tool Execution (uvx)

Run CLI tools without installation:

bash
# Run tool once
uvx pycowsay "Hello from uv!"
uvx httpie https://api.github.com
uvx ruff check .

# With specific version
uvx ruff@0.1.0 check .

# uvx is shorthand for:
uv tool run pycowsay "Hello"

Shebang Patterns

Self-Contained Executable Script

python
#!/usr/bin/env -S uv run --script
# /// script
# dependencies = ["click", "rich"]
# ///

import click
from rich import print

@click.command()
@click.argument('name')
def hello(name):
    print(f"[green]Hello, {name}![/green]")

if __name__ == "__main__":
    hello()

Script with Python Version Requirement

python
#!/usr/bin/env -S uv run --script --python 3.12
# /// script
# requires-python = ">=3.12"
# dependencies = ["httpx"]
# ///

import httpx
# Uses Python 3.12+ features

When to Use Each Pattern

ScenarioApproach
Quick one-off taskuv run --with pkg script.py
Reusable scriptInline deps (PEP 723)
Shareable utilityPEP 723 + shebang
Team collaborationInline deps + uv lock --script
Run CLI tool onceuvx tool
Project scriptsuv run (uses project deps)

uvx vs uv run --with

  • `uvx tool`: Run a CLI tool without installation (e.g., uvx ruff check .)
  • `uv run --with pkg`: Run a script with temporary dependencies (e.g., uv run --with requests script.py)
bash
# Run a tool (CLI application)
uvx httpie https://api.github.com

# Run a script with dependencies
uv run --with httpx api_test.py

Profiling and Debugging

bash
# CPU profiling
uv run python -m cProfile -s cumtime script.py | head -20

# Line-by-line profiling (temporary dependency)
uv run --with line-profiler kernprof -l -v script.py

# Memory profiling
uv run --with memory-profiler python -m memory_profiler script.py

# Real-time profiling (ephemeral tool)
uvx py-spy top -- python script.py

# Quick profiling
uv run --with scalene python -m scalene script.py

See Also

  • uv-project-management - Project dependencies and lockfiles
  • uv-tool-management - Installing CLI tools globally
  • python-development - Core Python language patterns

References

  • Official docs: https://docs.astral.sh/uv/guides/scripts/
  • PEP 723: https://peps.python.org/pep-0723/
  • Tools: https://docs.astral.sh/uv/guides/tools/

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