This generic code used for all python scripts. The quotes are to ensure that the source .py file can still be run as a python script, but does not include any sys.path handling. Otherwise, the lilypond-book calls inside the build might modify installed .pyc files. """ for d in ['@lilypond_datadir@', '@lilypond_libdir@']: sys.path.insert (0, os.path.join (d, 'python')) # dynamic relocation, for GUB binaries. bindir = os.path.abspath (os.path.dirname (sys.argv[0])) for p in ['share', 'lib']: datadir = os.path.abspath (bindir + '/../%s/lilypond/current/python/' % p) sys.path.insert (0, datadir) """