Talks - Ofek Lev: Hatch: The only tool you need

Hatch is a modern Python project manager that aims to be an all-in-one tool, replacing multiple tools like pyenv, Twine, and versioning utilities

Key features include:

• Environment management with inheritance and matrix support
• Built-in build backend (hatchling)
• Script running and task automation
• Dependency management
• Package publishing to PyPI
• Python version management

Provides good defaults out of the box while remaining highly configurable through plugins

Environments are a core feature:

• Can be virtual environments or container-based
• Support matrices for testing across Python versions
• Allow inheritance for shared configurations
• Can include custom dependencies and settings

Build system capabilities:

• Supports wheel and sdist formats
• Handles static metadata
• Includes hooks for customization
• Compatible with private repos

Developer workflow features:

• Script running with environment activation
• Coverage testing integration
• Static analysis tools support
• Development mode (editable installs)
• Version management

VS Code integration and workspace support (coming soon) for managing multiple related projects

Uses pyproject.toml for configuration with optional additional config in hatch.toml

Performance improvements including UV integration for faster dependency resolution

Extensive plugin system allows extending functionality for custom build targets, environments, and tools