python遍歷文件夾和文件

import os
import os.path
rootdir = './'

for parent,dirnames,filenames in os.walk(rootdir):
    for dirname in dirnames:
        print "parent is:" + parent
        print  "dirname is" + dirname

    for filename in filenames:
        print "parent is:" + parent
        print "filename is:" + filename
        print "the full name of the file is:" + os.path.join(parent,filename)