walk.py

#!/usr/bin/env python

''' example of a visitor pattern '''

import os

def printer (dir, file):
	print(dir + os.path.sep + file)

def vwalk (path, visit):

	for root, dirs, files in os.walk(path):

		for file in files:
			visit(root, file)

		for dir in dirs:
			vwalk(dir, visit)

vwalk('..', printer)