Check if soundfiles exist for jeopardy music

music.py

@@ -1,5 +1,6 @@
 from __future__ import print_function
 
+import os
 import sys
 from PySide import phonon
 
@@ -19,7 +20,10 @@ class MusicBox(object):
 	@classmethod
 	def add_music(clazz, name, media_path):
 		if name not in clazz.media.iterkeys():
+			if not os.path.isfile(media_path):
+				return False
 			clazz.media[name] = phonon.Phonon.MediaSource(media_path)
+		return True
 
 	@classmethod
 	def play_music(clazz, name):

seopardy.py

@@ -59,7 +59,9 @@ if __name__ == '__main__':
 	MusicBox.init()
 	for name, path in config["music"].iteritems():
 		if path:
-			MusicBox.add_music(name, path)
+			if not MusicBox.add_music(name, path):
+				print("Error: Could not load music %s (file %s)" % (name, path), file=sys.stderr)
+				sys.exit(1)
 
 	# create board
 	board = SeopardyGame(questions, gamestate)