python中re.findall()找到的结果替换

正则表达式re模块中用findall查找到的是ascii码，所以当比对替换时也需要对应的ascii码才能匹配成功。以下程序是查找文件夹下文件名中含有男、女的文件，并将男替换成1，将女替换成2的程序

# -*- coding: utf-8 -*-

import fnmatch
import os
import codecs
import re
import sys

def iterfindfiles(path, fnexp):
    for root, dirs, files in os.walk(path):
        for filename in fnmatch.filter(files, fnexp):
            yield os.path.join(root, filename)

def fiterFiles():
    
    path=raw_input("input dir:")
    filterfiletype=raw_input("input file filter type:")

    #quanjiao_2_banjiao(path)

    for filename in iterfindfiles(path,filterfiletype):
        SingerList=re.findall('((..?)).dat',filename)
        for SingerName in SingerList:
            if(SingerName=='xc4xd0'):
                SingerName='1'
                new_filename=re.sub('((..?)).dat','(1).dat',filename)
                print new_filename
                os.rename(filename,new_filename)
                #print SingerName
            elif(SingerName=='xc5xae'):
                SingerName='2'
                new_filename=re.sub('((..?)).dat','(2).dat',filename)
                print new_filename
                os.rename(filename,new_filename)

def main():
    fiterFiles()


if __name__ == "__main__":
    main()