def songs_to_plfile(self):
for song in self:
if not song.location:
continue
loc = song.location
# replacing old root with new root in the playlist file
if self.old_root is not None and self.new_root is not None:
if loc.startswith(self.old_root):
loc = os.path.join(self.new_root,
loc[len(self.old_root):].lstrip('/'))
else:
loc = os.path.join(self.new_root, loc.lstrip('/'))
loc = to_fat_compat(loc)
target_song = Song(loc)
target_song.title = song.title
target_song.artist = song.artist
target_song.length = song.length
yield target_song
