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python批量修改文件后缀示例代码分享

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:

复制代码 代码如下:
# -*- 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()