#! /usr/bin/python3
# MuseScore batch file conversion
# GNU GENERAL PUBLIC LICENSE GPLv3
 
# !! Will overwrite any existing files with the target extension!!!
 
import os
 
mydir = os.getenv('HOME') + '/Desktop/capella' # <<<<< Change 'Desktop/capella' to the directory your files are in
fromext = '.mscz' # <<<<< Change '.mscz' to the extension for format you want to convert from
intoext = '.xml' # <<<<< Change '.xml' to the extension for format you want to convert to
 
os.chdir(mydir)                                     
print ('---Starting---')
 
for filename in os.listdir(mydir):
    if filename.endswith(fromext):
        newfile, dummy = os.path.splitext(filename)
        command = 'mscore '+filename+' -o '+newfile+intoext
        print (command)
        result = os.system(command)
 
print ('---Finished---')