Open-source alternatives to Wcwidth

Make awesome command-line applications the easy way

Docopt is a command-line argument parser and declarative interface tool that converts raw terminal input into a structured data map. It derives its parsing logic and requirements directly from a standardized POSIX-style help message, using the documentation as the formal specification for the interface. The system implements a POSIX usage pattern parser to translate human-readable help strings into rules for extracting options and positional arguments. It automatically generates help screens and version information based on the internal usage patterns defined by the user. The tool ensures a

General purpose Command Line Interface (CLI) framework for Ruby

A thin, practical wrapper around terminal capabilities in Python

This project is a Python framework for building command-line interfaces by converting standard functions into executable programs. It uses type hints to automatically infer and generate argument parsers, validation logic, and help documentation, allowing developers to define complex terminal applications through simple function signatures. The framework distinguishes itself through a decorator-driven registration system that enables the construction of hierarchical command trees. It supports dependency injection to manage shared state and runtime configuration across subcommands, and it utili

Python Fire is a library that automatically generates command line interfaces from any Python object, function, or class. It removes the need for manual argument parsing by mapping Python dictionaries, lists, and classes directly to terminal commands. The tool converts Python docstrings into formatted terminal help screens and produces shell scripts to enable tab-completion for available commands. It can wrap existing libraries or external modules to expose their functionality via the terminal without requiring modifications to the original source code. The library supports hierarchical comm

python-prompt-toolkit is a Python library and terminal user interface framework used for building interactive command line interfaces. It provides a toolkit for constructing complex terminal applications with advanced input handling and layout management. The project features a real-time syntax highlighting engine and a rendering system that ensures correct alignment and display of double-width Unicode characters. It includes specialized capabilities for command line autocompletion, providing ghost text suggestions and searchable input history. The framework covers a broad range of interface

Python Command-line Application Tools

Python and tab completion, better together.

Simple Lightweight Option Parsing - ✨ new contributors welcome ✨

Optimist is a commandline option parser for Ruby that just gets out of your way.

a Ruby command-line application framework

Click is a Python framework for building command-line interfaces. It provides a declarative approach to defining command structures, allowing developers to map functions to command-line arguments, options, and nested groups using decorators. The framework handles the complexities of parameter parsing, type validation, and help documentation generation automatically. The project distinguishes itself through its hierarchical context system, which propagates configuration and state across nested commands, and its environment-aware parameter resolution that prioritizes command-line inputs, enviro

Toolkit for developing sleek command line apps.

Asciimatics is a cross-platform terminal user interface framework and console wrapper. It functions as a curses-compatible library providing a toolkit for building interactive text-based applications, an ASCII art generator, and a terminal animation engine. The project distinguishes itself through a visual effects engine capable of rendering sprites, particle systems, and anti-aliased lines. It includes specialized systems for creating moving text-based graphics and tools for converting image files into character-based representations. The framework covers core terminal management including

This project is a Python terminal user interface library and toolkit designed for building interactive command-line applications. It provides a terminal input manager and a widget toolkit for rendering dashboards, menus, and editors within a terminal emulator. The library enables the creation of full-screen terminal interfaces and interactive shells. It distinguishes itself with advanced input handling, including lexer-based syntax highlighting for visual feedback on code structure and support for industry-standard keyboard navigation modes such as Emacs and Vi. The capability surface covers

Create beautiful and testable command-line interfaces.

A make-like build utility for Ruby.

Colorama is a Python terminal styling library and cross-platform console utility that translates ANSI escape sequences into native system calls. It acts as a terminal output stream wrapper, intercepting and processing control codes to ensure consistent text formatting and styling across different operating systems. The library standardizes terminal output by mapping abstract escape sequences to specific operating system APIs, enabling reliable coloring and cursor positioning in environments that lack native ANSI support. It utilizes runtime platform dispatching to apply the appropriate logic

Rich is a comprehensive library for building sophisticated command-line interfaces and terminal applications. It provides a robust console formatting engine and a layout framework that enables developers to render rich text, syntax-highlighted code, and complex data structures directly in the terminal. By utilizing a recursive constraint-based layout engine, the library allows for the creation of hierarchical grids, panels, and trees that maintain their structure even as terminal dimensions change. What distinguishes the library is its ability to manage persistent, real-time terminal interfac

This project is a framework for building interactive, graphical-style terminal applications. It provides a declarative component model that organizes user interfaces into a tree of nested widgets, each managing its own lifecycle, state, and rendering. By subclassing the base application class, developers can construct complex, keyboard-navigable interfaces that run directly within terminal emulators. The framework distinguishes itself through a reactive architecture and a CSS-based layout engine. It uses a reactive attribute system to automatically track state changes and trigger targeted int

Run shell commands safely, even with user-supplied values