pętla Pythona przez wszystkie foldery i podfoldery

directory = "c:\\folder\\you\\want\\to\\work_on"

for root, subdirectories, files in os.walk(directory):
    for subdirectory in subdirectories:
        print(os.path.join(root, subdirectory))
    for file in files:
        print(os.path.join(root, file))
siva