批量重命名

import os
path = os.getcwd()
os.chdir(path)
file_name = os.listdir(path)
# print file_name

for each in file_name:
    if ('WC' in each) and ('WCT' not in each):
        name_rew = 'WCT' + each[2:]
        os.rename(each,name_rew)
        print '%s rename to %s' %(each,name_rew)
    else:
        print 'the file name is %s\t,don\'t need to rename' %(each)