ARC

A tool for building declarative, and highly extendable CLI systems for Python 3.10+

ARC Features

• Command line arguments based on python type hints
• Arbitrary command nesting
• Automatic --help documentation
• Fully Extensible with custom middlewares, types, validators, parameter configurations, etc...

Links

• Docs
• Playground
• PyPi

Quick Start

import arc

@arc.command
def hello(name: str):
    """My first arc program!"""
    arc.print(f"Hello {name}!")

hello()

$ python hello.py Sean
Hello, Sean!

$ python hello.py --help
USAGE
    hello.py [-h] [--] name

DESCRIPTION
    My first arc program!

ARGUMENTS
    name

OPTIONS
    --help (-h)  Displays this help message

Installation

$ pip install arc-cli

Clone for development

$ git clone https://github.com/seanrcollings/arc
$ uv sync

Tests

Tests are written with pytest

$ pytest