# files/walking.py
import os


for root, dirs, files in os.walk('.'):
    abs_root = os.path.abspath(root)
    print(abs_root)

    if dirs:
        print('Directories:')
        for dir_ in dirs:
            print(dir_)
        print()

    if files:
        print('Files:')
        for filename in files:
            print(filename)
        print()