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"""This module contains a code example related to

Think Python, 2nd Edition

by Allen Downey

http://thinkpython2.com

Copyright 2015 Allen Downey

License: http://creativecommons.org/licenses/by/4.0/

"""

from __future__ import print_function, division

import os

def walk(dirname):

"""Prints the names of all files in dirname and its subdirectories.

This is the version in the book.

dirname: string name of directory

"""

for name in os.listdir(dirname):

path = os.path.join(dirname, name)

if os.path.isfile(path):

print(path)

else:

walk(path)

def walk2(dirname):

"""Prints the names of all files in dirname and its subdirectories.

This is the exercise solution, which uses os.walk.

dirname: string name of directory

"""

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

for filename in files:

print(os.path.join(root, filename))

if __name__ == '__main__':

walk('.')

walk2('.')