Crash if no audio system found about pyxel

[kitao]

Pyxel uses the sounddevice (https://github.com/spatialaudio/python-sounddevice/tree/0.3.11), the Python wrapper of PortAudio. It seems that there's no way to detect the audio card is active or not in the soudedevice APIs (am I right?), so I need to change the soundedevice or detect it before using it.

I'll investigate.

[Godzil]

Well at least you could try/catch in audioplayer.py when the call to OutputStream is made to catch the error.

Maybe no the most clean way, but would at least prevent the crash and stackdump.

(I know that I should install the audio driver, but that PC has proved to be painful on that point)

[kitao]

Exactly! I overlooked sounddevice raised exception. I'll catch it.

[Godzil]

I've seen that there is this function though:

http://python-sounddevice.readthedocs.io/en/0.3.11/#sounddevice.query_devices

Not necessarily useful here, but if you want to allow at some point the user to select which audio device to use, that could be an idea!

[kitao]

Thank you for the information!
Though I haven't released it as python package for PyPI not yet, I fixed it in the master branch.

[kitao]

This bug is fixed in 0.7.3.
Please let me know if it doesn't work.