lilypath =''
try:
lilypath = os.environ['LILYPOND_SOURCEDIR'] + '/'
-except IndexError:
- lilypath = os.environ['HOME'] + 'musix/current'
+except KeyError:
+ print 'Please set LILYPOND_SOURCEDIR to the toplevel source, eg LILYPOND_SOURCEDIR=/home/foobar/lilypond-1.2.3/'
+ sys.exit(1)
+
lilypath = lilypath + '/bin/'
sys.path.append(lilypath)