sapristi

import argparse

if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("--name", help="Any name", default="inconnu")
    parser.add_argument("action", help="Action to execute")

    args = parser.parse_args()

    if args.action == "hello":

sapristi

# /etc/udev/rules.d/00-keyboard.rules

ACTION=="add", ATTR{name}=="Bastard Keyboards Charybdis Nano", ATTR{phys}=="*/input0", OWNER="sapristi", RUN+="/usr/local/bin/usb-keyboard-udev Charybdis"

NOTE:
on ubunut, use ACTION=="bind", otherwise device may not be present !!