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' 

代码2：

# -*- 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")

 代码3：

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")