cli-fw

A compact dataclass-driven command-line framework extracted from the Pacman and RAG projects.

uv add cli-fw

Example

from dataclasses import dataclass
from cli_fw import Command, arg


@dataclass
class Serve:
    port: int = arg(help="Port to listen on", default=8000)


command = Command("serve", schema=Serve)
parsed = command.execute(["--port", "8080"])

It supports positional and optional arguments, choices, booleans, lists, nested commands, generated help, and typed parse errors.

Where I use it

This is my internal CLI framework for 42 projects. The latest implementation was extracted from Pacman, a work-in-progress group project in the 42 organization, with behavior checked against RAG Against the Machine. Pacman uses it for the game command and RAG uses it to validate command syntax and produce diagnostics before command execution.

Dependencies

Python 3.10+
typed-errs for Result, Err, and diagnostics

Development and release

Run mise run check. Every push to master publishes a unique 0.0.<CI run> ZeroVer version through PyPI Trusted Publishing. mise run publish remains available.

Development Status
- 3 - Alpha
Environment
- Console
Programming Language
- Python :: 3 :: Only
Typing
- Typed

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