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Pythonos.walk() Method

❮ OS Module


Example

Travers all the branch of a specified path:

#Import os Library
import os

# Travers all the branch of a specified path
for (root,dirs,files) in os.walk('C:/W3school/',topdown=True):
  print("Directory path: %s"%root)
  print("Directory Names: %s"%dirs)
  print("Files Names: %s"%files)
Try it Yourself »

Definition and Usage

The os.walk() method generates the file and directory names in a directory tree by walking the tree using top-down or bottom-up approach.

Each directory in the tree is rooted to the top directory. It yields a tuple that contains directory path, directories name and file name

The os.walk() method use os.scandir() method for produce listing


Syntax

os.walk(top, topdown=True, onerror=None, followlinks=False)

Parameter Values

Parameter Description
top Required. Represent path-like object to be traversed
topdown Optional. Represent a topdown approach by default. If specified False the bottom-up approach is implemented
onerror Optional. Represent an OSError.The default value of onerror is none but it is specified it should be a function that can report the error to continue with the walk, or raise an exception to abort the walk
follow_symlinks Optional. Represent a boolean value either True or False. If its True method will follow the symbolic link

Technical Details

Return Value: Tuple
Python Version: pre 2.6
Python Change Log: 2.6- The followlinks parameter.
3.5- This function now calls os.scandir() instead of os.listdir(), making it faster by reducing the number of calls to os.stat().
3.6- Accepts a path-like object

❮ OS Module

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