Modern Python

Use this skill for Python modernization work that should improve code quality without fighting the repository’s existing setup.

Apply this skill when

• adding type hints or improving Python ergonomics
• cleaning up package structure or module layout
• improving linting, formatting, or test workflow choices
• updating scripts or package code to clearer modern idioms

Repository-specific focus

• preserve the repository’s supported Python version expectations
• prefer changes that work with the existing pyproject.toml, requirements files, and selected environment tooling
• use standard library features and clear typing before reaching for new dependencies
• keep python -m hb_library_viewer working

Working principles

1. prefer clear modern syntax that matches the supported runtime
2. keep tooling recommendations consistent with the repository’s actual workflow