python --批量重命名文件名

# -*- coding: utf-8 -*-
import os
path = "d:\\curl\data\\"
for file in os.listdir(path):
print file
if(os.path.isfile(os.path.join(path,file))==True):
if file.find('.')>0:
newname="new_"+file
os.rename(os.path.join(path,file),os.path.join(path,newname))
print file,'ok'

# -*- coding: utf-8 -*-
import os

def BatchRename(path,pattern):
os.chdir(path)
fileList=os.listdir(path)
dotIndex = pattern.rfind('.')
fileName = pattern[ : dotIndex]
fileExt = pattern[dotIndex : ]
genNum = 0
for fileItem in fileList:
fileFullName = fileName + '_' + str(genNum) + fileExt
os.rename(fileItem, fileFullName)
print (fileItem + ' => ' + fileFullName)
genNum += 1

if __name__ == '__main__':
BatchRename("d:\\curl\\data","test.log")

import os
os.chdir("d:\\curl\\data")
for file in os.listdir("d:\\curl\\data"):
print file
if(os.path.splitext(file)[1] == ".log"):
print "yes"
os.rename(file, os.path.splitext(file)[0]+".jpg")