## arguments

* argparse : the standard way
* getopt : for C users
* baker : decorator overs functions
* [docopt](http://docopt.org/) : CLI description language ; python 3.6 ! ; nim port available

## TUI

* must display tables
* must display progress bar

## semver


* pip install semver https://pypi.org/project/semver/, https://github.com/python-semver/python-semver/releases
* pip install python-semanticversion
* most pakging tool : packaging https://packaging.pypa.io/en/latest/version.html, setuptool, distutils

## arch

use `os.uname()`

## downloader

* requests

## install

* unpack in ~/.local/programs/<cli>
* link exe in ~/.local/bin