title: Set output device for pygame mixer
body: <p>I need to play audio files through different audio devices using pygame. Apparently this is possible by parameter <code>devicename</code> in method <a href="https://www.pygame.org/docs/ref/mixer.html#pygame.mixer.init" rel="noreferrer">pygame.mixer.init()</a>, but there is no documentation for it.</p>
  
  <p>My questions:</p>
  
  <p>1- How to set output device for pygame mixer (or channel/sound if possible)?</p>
  
  <p>2- How to list all available device-names?</p>