Python3 os.walk() Method
Python3 OS File/Directory Methods
Overview
The os.walk() method can create a generator to generate all files in the directory to be searched and its subdirectories.
The os.walk() method is used to output the file names in a directory by walking through the directory tree, either top-down or bottom-up.
The os.walk() method is a simple and easy-to-use file and directory traversal iterator that can help us efficiently handle file and directory related tasks.
Valid on Unix and Windows.
Syntax
walk()The method syntax is as follows:
os.walk(top[, topdown=True[, onerror=None[, followlinks=False]]])
Parameters
-
top-- For every folder under the root directory (including itself), it yields a 3-tuple (dirpath, dirnames, filenames) [folder path, folder names, file names].
topdown-- Optional. If True or not specified, a directory's 3-tuple will be generated before any of its subfolders' 3-tuples (top-down). If topdown is False, a directory's 3-tuple will be generated after any of its subfolders' 3-tuples (bottom-up).
onerror-- Optional. It is a function; it is called with one argument, an OSError instance. After reporting this error, continue walking, or raise an exception to terminate the walk.
followlinks-- If set to true, directories are accessed through symbolic links.
Return Value
Returns a generator.
Example
The following example demonstrates the use of the walk() method:
Example
import os
for root, dirs, files in os.walk(".", topdown=False):
for name in files:
print(os.path.join(root, name))
for name in dirs:
print(os.path.join(root, name))
The output of the above program is:
./.bash_logout ./amrood.tar.gz ./.emacs ./httpd.conf ./www.tar.gz ./mysql.tar.gz ./test.py ./.bashrc ./.bash_history ./.bash_profile ./tmp ./tmp/test.pyOther Extensions