MCPInstall

python-packaging

by laurigates

Build and publish Python packages with uv. Use when the user mentions building packages, publishing to PyPI, wheel/sdist creation, or entry points.

Installs
301
Last 24h
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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/laurigates/claude-plugins --skill python-packaging
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads python-packaging automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Python Packaging

Quick reference for building and publishing Python packages with UV and modern build tools.

When to Use This Skill

Use this skill when...Use uv-project-management instead when...
Building a wheel/sdist with uv build for PyPI distributionSetting up a new project's pyproject.toml or adding runtime dependencies
Publishing a release to PyPI or a private index with uv publishManaging the lockfile or syncing the local virtual environment
Configuring entry points, console scripts, or package metadata for distributionResolving dependency conflicts or pinning versions for development

When This Skill Applies

  • Building Python packages (wheels, sdists)
  • Publishing to PyPI or private indexes
  • Package versioning
  • Build system configuration
  • Editable installations

Quick Reference

Building Packages

# Build package
uv build

# Build specific formats
uv build --wheel
uv build --sdist

# Output location: dist/

Publishing

# Publish to PyPI
uv publish

# With token
uv publish --token $PYPI_TOKEN

# To Test PyPI
uv publish --publish-url https://test.pypi.org/legacy/

Package Structure

my-package/
├── pyproject.toml
├── README.md
├── LICENSE
├── src/
│   └── my_package/
│       ├── __init__.py
│       ├── __version__.py
│       └── main.py
└── tests/

pyproject.toml Configuration

[project]
name = "my-package"
version = "0.1.0"
description = "A great package"
readme = "README.md"
requires-python = ">=3.11"
license = {text = "MIT"}
authors = [
    {name = "Your Name", email = "you@example.com"}
]
keywords = ["python", "package"]
classifiers = [
    "Development Status :: 4 - Beta",
    "Intended Audience :: Developers",
    "Programming Language :: Python :: 3",
    "Programming Language :: Python :: 3.11",
]

dependencies = [
    "requests>=2.31.0",
]

[project.optional-dependencies]
dev = ["pytest", "ruff", "ty"]

[project.urls]
Homepage = "https://github.com/user/my-package"
Documentation = "https://my-package.readthedocs.io"
Repository = "https://github.com/user/my-package.git"
Issues = "https://github.com/user/my-package/issues"

[project.scripts]
my-cli = "my_package.cli:main"

[build-system]
requires = ["uv_build>=0.9.2,<0.10.0"]
build-backend = "uv_build"

Versioning

[project]
version = "0.1.0"  # Manual versioning

# Dynamic versioning (from git tags)
dynamic = ["version"]

[tool.uv]
version-provider = "git"

Entry Points

[project.scripts]
my-cli = "my_package.cli:main"

[project.gui-scripts]
my-gui = "my_package.gui:main"

[project.entry-points."my_plugin"]
plugin1 = "my_package.plugins:plugin1"

Build Backends

UV Build (default)

[build-system]
requires = ["uv_build>=0.9.2,<0.10.0"]
build-backend = "uv_build"

Setuptools

[build-system]
requires = ["setuptools>=68", "wheel"]
build-backend = "setuptools.build_meta"

Hatchling

[build-system]
requires = ["hatchling>=1.18"]
build-backend = "hatchling.build"

Common Workflows

Publish to PyPI

# 1. Build
uv build

# 2. Check built packages
ls dist/

# 3. Publish
uv publish --token $PYPI_TOKEN

Test PyPI First

# Publish to Test PyPI
uv publish --publish-url https://test.pypi.org/legacy/ \
           --token $TEST_PYPI_TOKEN

# Test installation
pip install --index-url https://test.pypi.org/simple/ my-package

Package Classifiers

Common classifiers:

classifiers = [
    # Development Status
    "Development Status :: 3 - Alpha",
    "Development Status :: 4 - Beta",
    "Development Status :: 5 - Production/Stable",

    # Audience
    "Intended Audience :: Developers",
    "Intended Audience :: Science/Research",

    # License
    "License :: OSI Approved :: MIT License",

    # Python Versions
    "Programming Language :: Python :: 3",
    "Programming Language :: Python :: 3.11",
    "Programming Language :: Python :: 3.12",

    # Framework
    "Framework :: Django",
    "Framework :: FastAPI",

    # Topic
    "Topic :: Software Development :: Libraries",
    "Topic :: Scientific/Engineering",
]

Full list: https://pypi.org/classifiers/

See Also

  • uv-project-management - Project setup and dependencies
  • python-development - Core Python patterns
  • uv-workspaces - Building workspace packages

References

FAQ

What does the python-packaging skill do?

Build and publish Python packages with uv. Use when the user mentions building packages, publishing to PyPI, wheel/sdist creation, or entry points.

How do I install python-packaging?

Run npx skills add https://github.com/laurigates/claude-plugins --skill python-packaging in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/python-packaging/ (personal) or .claude/skills/python-packaging/ (project).

Which AI agents can use python-packaging?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is python-packaging safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains python-packaging?

It is published by laurigates in laurigates/claude-plugins. It has 301 recorded installs.

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