[python] 디렉토리내 파일 이름 변경

import re

import os

for root, dirs, files in os.walk('C:test\testFolder'):

    for fname in files:

        print(fname)

        match = re.findall("^[0-9]+ ",fname)

        fname_new = re.sub("^[0-9]+ ",match[0][:-1]+".",fname)

        os.rename(fname,fname_new)

        print(fname_new)