Many ways Python traverses a directory

1.os.popen running the Shell List command

def traverseDirByShell(path):    forin os.popen(‘ls ‘ + path):        print f.strip()

2. Using the Glob module

Glob.glob (path) returns the file name with the directory. Wildcard characters are similar to shells. Path cannot contain shell variables.

def traverseDirByGlob(path):    path = os.path.expanduser(path)    forin‘/*‘):        print f.strip()

3. Using Os.listdir (recommended)

The method returns the name of the file or subdirectory without the root directory

def traverseDirByListdir(path):    path = os.path.expanduser(path)    forin os.listdir(path):        print f.strip()

4. Using Os.walk (recommended)

Returns a tuple containing 3 items: current directory name, subdirectory name, sub-file name

def traverseDirByOSWalk(path):    path = os.path.expanduser(path)    forin os.walk(path):        #print(‘dirname is %s, subdir is %s, subfile is %s‘ % (dirname, subdir, subfile))        print(‘[‘‘]‘)        forin subfile:            print(os.path.join(dirname, f))

Integration code:

#!/usr/bin/pythonImportOs fromGlobImportGlob def printseparator(func):     def deco(path):Print"Call method%s, result is:"% func.__name__) Print ("-"* +) func (path) print ("="* +)returnDeco@printSeparator def Traversedirbyshell(path):     forFinchOs.popen (' ls '+ path):PrintF.strip ()@printSeparator def traversedirbyglob(path):Path = Os.path.expanduser (path) forFinchGlob (path +'/* '):PrintF.strip ()@printSeparator def traversedirbylistdir(path):Path = Os.path.expanduser (path) forFinchOs.listdir (PATH):PrintF.strip ()@printSeparator def traversedirbyoswalk(path):Path = Os.path.expanduser (path) for(DirName, SubDir, Subfile)inchOs.walk (PATH):#print (' dirname is%s, SubDir was%s, Subfile is%s '% (dirname, subdir, subfile))Print' ['+ DirName +'] ') forFinchSubfile:print (Os.path.join (dirname, F))if__name__ = =' __main__ ': Path =R ' ~/src/py 'Traversedirbyglob (path) traversedirbyglob (path) traversedirbylistdir (path) traversedirbyoswalk (path)

Many ways Python traverses a directory