[Bugs] #2579 UNSP: Story Builder fails to start after running Music Painter

[Sugar Labs Bugs]

#2579: Story Builder fails to start after running Music Painter
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    Reporter:  carrott                    |          Owner:  alsroot                    
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  StoryBuilder               |        Version:  Unspecified                
    Severity:  Unspecified                |       Keywords:                             
Status_field:  Unconfirmed                |   Distribution:  Unspecified                
   Seeta_dev:                             |  
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 On Build 861 10.1.3-au2

 Seems very reproducible.

 * Start laptop
 * Start Story Builder (it starts)
 * Stop Story Builder
 * Start Music Painter
 * Play something
 * Stop Music Painter
 * Start Story Builder
 * Observe exception in log:

 {{{
 1296867252.415880 ERROR olpcgames.canvas: Uncaught top-level exception:
 Traceback (most recent call last):
   File "/home/olpc/Activities/StoryBuilder.activity/olpcgames/canvas.py",
 line 116, in _start
     fn()
   File "/home/olpc/Activities/StoryBuilder.activity/StoryBuilder.py", line
 326, in __init__
     self.set_theme()
   File "/home/olpc/Activities/StoryBuilder.activity/StoryBuilder.py", line
 391, in set_theme
     self.character_buttons = self.load_buttons()
   File "/home/olpc/Activities/StoryBuilder.activity/StoryBuilder.py", line
 366, in load_buttons
     button = CharacterButton(button_def)
   File "/home/olpc/Activities/StoryBuilder.activity/StoryBuilder.py", line
 274, in __init__
     self.sound = load_sound(definition["sound"])
   File "/home/olpc/Activities/StoryBuilder.activity/StoryBuilder.py", line
 86, in load_sound
     sound = pygame.mixer.Sound(fullname)
 error: mixer system not initialized
 }}}

-- 
Ticket URL: <http://bugs.sugarlabs.org/ticket/2579>
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