human
Solve the following python programming problem given the following code:
@cli.command()
@click.option('--phantomjs-path', default='phantomjs', help='phantomjs    path')
@click.option('--port', default=25555, help='phantomjs    port')
@click.option('--auto-restart', default=False, help='auto    restart    phantomjs    if    crashed')
@click.argument('args', nargs=(-1))
@click.pass_context
def phantomjs(ctx, phantomjs_path, port, auto_restart, args):
assistant
#Here is the Python code you requested.

    """Run phantomjs fetcher if phantomjs is installed.
    """
    args = (args or (ctx.default_map and ctx.default_map.get('args', [])))
    import subprocess
    g = ctx.obj
    _quit = []
    phantomjs_fetcher = os.path.join(os.path.dirname(pyspider.__file__), 'fetcher/phantomjs_fetcher.js')
    cmd = (([phantomjs_path, '--ssl-protocol=any', '--disk-cache=true'] + list((args or []))) + [phantomjs_fetcher, str(port)])
    try:
        _phantomjs = subprocess.Popen(cmd)
    except OSError:
        logging.warning('phantomjs    not    found,    continue    running    without    it.')
        return None
    def quit(*args, **kwargs):
        _quit.append(1)
        _phantomjs.kill()
        _phantomjs.wait()
        logging.info('phantomjs    exited.')
    if (not g.get('phantomjs_proxy')):
        g['phantomjs_proxy'] = ('127.0.0.1:%s' % port)
    phantomjs = utils.ObjectDict(port=port, quit=quit)
    g.instances.append(phantomjs)
    if g.get('testing_mode'):
        return phantomjs
    while True:
        _phantomjs.wait()
        if (_quit or (not auto_restart)):
            break
        _phantomjs = subprocess.Popen(cmd)