capturts on 2019/04/02 16:08
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MP3 support is optional in Pygame, and whether you have the support depends on the way you obtain Pygame. Debian for example never included MP3 support, because MP3 was patented, and Debian has strict freedom guarantees (DFSG) but the patent has now expired so I don't know the current situation.
Have to tried installing the latest PyGame from Wheels? I think the wheels are built with MP3 support.
Ogg is safer because it isn't patent-encumbered so it is available in most builds of Pygame.
pip install pygame==2.0.0.dev3