Python Learning Os.walk ()

Os.walk (Top,topdown = True,onerror = None,followlinks = False)

Parameters

• Top -Every folder in the root directory (including itself), resulting in 3-tuple (Dirpath, dirnames, filenames) "Folder path, folder name, file name".

• Topdown --optional, true or unspecified, a 3-tuple of a directory will be generated first (directory top-down) than the 3-tuple of any of its subfolders. If Topdown is False, a 3-tuple of a directory will be generated after the 3-tuple of any of its subfolders (directory bottom-up).

• onerror --optional, is a function; It is called when there is a parameter, an OSError instance. After reporting this error, continue to walk, or throw exception to terminate walk.

• followlinks --set to True to access the directory through a soft link.

return value

The method has no return value.

Instance

#-*-Coding:utf-8-*-#import osimport os.pathfor root, dirs, files in Os.walk ("D:\Leo\cew", Topdown=false): for    name In Files: print (        name)        print ('-' *10) for    name in dirs: print (        name)        print (' # ' *10)

Execution results

2.txt
----------
ew
##########
New text document. txt
----------
1
##########
2
##########

Querying with the tree command

Tree d:\leo\cewd:\leo\cew├─ 1 └─ 2     └─ew

Python Learning Os.walk ()