#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2008 Doug Hellmann All rights reserved.
     #
     """Traverse a directory tree.
     """
     
     __version__ = "$Id$"
     #end_pymotw_header
     
     import os
     import os.path
     import pprint
     
     def visit(arg, dirname, names):
         print dirname, arg
         for name in names:
             subname = os.path.join(dirname, name)
             if os.path.isdir(subname):
                 print '  %s/' % name
             else:
                 print '  %s' % name
         print
     
     os.mkdir('example')
     os.mkdir('example/one')
     f = open('example/one/file.txt', 'wt')
     f.write('contents')
     f.close()
     f = open('example/two.txt', 'wt')
     f.write('contents')
     f.close()
     os.path.walk('example', visit, '(User data)')