Using Axel_Erfurt code with files it will like this.
with open('songs.txt') as f,open('songs_out.txt', 'w') as f_out: for line in f: line = line.strip() if line.startswith("#EXTINF"): f_out.write(f'{line}\n') name = line.split(",")[1] f_out.write(f'{name}.mp3\n')