How to use it in Mac OS?

Hello, I run the example code, but no any responses. The program is running all the time, and there's nothing wrong with it. And this is my code.
```
player = mpv.MPV(ytdl=True)
url = 'https://www.bilibili.com/video/av16942715/'
player.play(url)
```