It looks, like opening the audio device requires thread support on some
platforms. I changed the sdlmixer.open_audio() call to support threads,
which seems to fix the problem.
While working on that, sdlmixer.init() was changed to support the
optional INIT_FLAC/INIT_MOD... arguments properly, so do not forget to
initialize sdlmixer with something like:
import pygame2.sdlmixer.constants as const
import pygame2.sdlmixer as sdlmixer
...
sdlmixer.init (const.INIT_FLAC|const.INIT_MOD...)
...
if you want support for additional audio formats.
The changes are committed in SVN revision 2740.
Regards
Marcus