python 批量修改文件后缀

ipad的goodreader对JS文件支持不太好，虽然可以读取它但总是无法退出，回不了goodreader的主界面，因此我需要把js文件批量变成纯文本。基于这个目的，我搞了下面一个小应用:

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

 

import os

def rename():

    path = raw_input("请输入要处理的文件夹路径")

    print path

    old_ext = "."+raw_input("请输入要处理的文件类型")

    print old_ext

    new_ext = "."+raw_input("请输入你想变成的文件类型")

    print new_ext

    for (path, dirs, files) in os.walk(path):#遍历目录树

        for filename in files:

            ext = os.path.splitext(filename)[1] #取得文件类型，注意它还带着点号

            print ext;

            if(ext == old_ext):

                print "----------------"

                newname = filename.replace(old_ext, new_ext)

                oldpath = path + "\\" + filename

                newpath = path + "\\" + newname

                try:

                    os.rename(oldpath, newpath)

                except BaseException, e:

                   print(str(e))

 

if __name__ == '__main__':

    rename()

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