def _getSound(playCmdSounds, prefs, prefName):
noPlay = Sound.NoPlay()
if not playCmdSounds:
return noPlay
soundPref = prefs.getPrefVar(prefName)
if soundPref is None:
sys.stderr.write("StatusBar cannot play %r; no such preference" %
prefName)
return noPlay
elif not hasattr(soundPref, "play"):
sys.stderr.write(
"StatusBar cannot play %r; preference exists but is not a sound" %
prefName)
return noPlay
return soundPref
