>>> import glob
>>> glob.glob('D:/Personal/Music/Fun/*.mp3')
['D:/Personal/Music/Fun\\All Alone.mp3',
'D:/Personal/Music/Fun\\All Alright.mp3',
'D:/Personal/Music/Fun\\All The Pretty Girls.mp3',
"D:/Personal/Music/Fun\\At Least I'M Not As Sad (As I Used To Be).mp3",
'D:/Personal/Music/Fun\\Barlights.mp3',
'D:/Personal/Music/Fun\\Be Calm.mp3',
'D:/Personal/Music/Fun\\Benson Hedges.mp3',
'D:/Personal/Music/Fun\\Carry On.mp3']
>>> os.listdir(" D:/Personal/Music/Fun")
['AlbumArtSmall.jpg', 'All Alone.mp3', 'All Alright.mp3', 'All The Pretty Girls.mp3', "At Least I'M Not As Sad (As I Used To Be).mp3", 'Barlights.mp3', 'Be Calm.mp3', 'Benson Hedges.mp3', 'Carry On.mp3']
>>> glob.glob('D:/Personal/Music/Fun/A*.mp3')
['D:/Personal/Music/Fun\\All Alone.mp3',
'D:/Personal/Music/Fun\\All Alright.mp3',
'D:/Personal/Music/Fun\\All The Pretty Girls.mp3',
"D:/Personal/Music/Fun\\At Least I'M Not As Sad (As I Used To Be).mp3"]