#! /usr/bin/env python3
"""Use case of subprocess.CompletedProcess with __bool__() method"""

from subprocess import run, CompletedProcess
from random import choice
from sys import stderr


def cpbool(self):
    """Method to become CompletedProcess.__bool__()"""
    return self.returncode == 0


if __name__ == '__main__':
    CompletedProcess.__bool__ = cpbool
    cmds = ['/bin/true', '/bin/false']
    cmd = choice(cmds)
    if run(cmd):
        print('Yay')
    else:
        print(':-(', file=stderr)