Not Working

[roothaxor]

Traceback (most recent call last):
File "was.py", line 46, in
device_scanning = pyglet.media.load(script_dir + '/audio/device_scanning.mp3
')
File "C:\Python27\lib\site-packages\pyglet\media_init_.py", line 1429, in l
oad
source = get_source_loader().load(filename, file)
File "C:\Python27\lib\site-packages\pyglet\media_init_.py", line 1410, in l
oad
return riff.WaveSource(filename, file)
File "C:\Python27\lib\site-packages\pyglet\media\riff.py", line 185, in __init
__
file = open(filename, 'rb')
IOError: [Errno 2] No such file or directory: '/audio/device_scanning.mp3'