def METHOD_NAME(self, quiet=False, retry=0):
    assert not self._proc
    if not quiet and not retry:
        click.secho('Launching Indico', fg='green', bold=True)
    try:
        argv = _disable_reloader(sys.argv)
        self._proc = subprocess.Popen(argv)
    except OSError as exc:
        delay = (retry + 1) * 0.5
        click.secho(f'Could not launch Indico: {exc}', fg='red', bold=True)
        click.secho(f'Retrying in {delay}s', fg='yellow')
        time.sleep(delay)
        self.METHOD_NAME(quiet=quiet, retry=(retry + 1))