python 批量修改檔案尾碼

ipad的goodreader對JS檔案支援不太好，雖然可以讀取它但總是無法退出，回不了goodreader的主介面，因此我需要把js檔案批量變成純文字。基於這個目的，我搞了下面一個小應用:

# -*- coding:utf-8 -*-import osdef rename():    path = raw_input("請輸入要處理的檔案夾路徑")    print path    old_ext = "."+raw_input("請輸入要處理的檔案類型")    print old_ext    new_ext = "."+raw_input("請輸入你想變成的檔案類型")    print new_ext    for (path, dirs, files) in os.walk(path):#遍曆分類樹        for filename in files:            ext = os.path.splitext(filename)[1] #取得檔案類型，注意它還帶著點號            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()