typer

Typer is a Python library used to create command-line interface (CLI) applications. It leverages modern Python type hints to define CLI arguments and options, reducing code duplication and providing strong editor support with autocompletion and type checking. Key capabilities include: - Automatic generation of help screens (`--help`) and shell completion for Bash, Zsh, Fish, and PowerShell. - Support for complex command structures, including nested trees of commands and groups of subcommands. - A standalone `typer` command-line tool that can run Python scripts as CLIs even if they do not use the Typer library internally. - Integration with the Rich library for formatted error reporting. - Minimal boilerplate, allowing developers to start with as few as two lines of code.