Python Packaging

Create, structure, and distribute Python packages using modern packaging tools, pyproject.toml, and publishing to PyPI.

When to Invoke

• Creating Python libraries for distribution
• Building CLI tools with entry points
• Publishing packages to PyPI or private repositories
• Setting up Python project structure (src layout vs flat)
• Configuring pyproject.toml, setup.py, or setup.cfg
• Building wheels and source distributions
• Versioning and releasing Python packages
• Creating namespace packages or multi-package projects

Core Concepts

Package Structure

• Source layout: src/package_name/ (recommended)