如何在关闭python应用程序的事件中附加方法？

Question

我需要解决以下面临的问题。我有一个Tkinter UI，其中有3个按钮（“注册”，“锁定文件夹”和“解锁文件夹”）。与所有应用程序一样，右上角有一个十字按钮。请参考以下快照。因此，想法是，当用户通过此UI解锁其文件夹，然后按下十字按钮时，必须关闭该文件夹以及该用户可能已打开的所有文件夹内容。下面是关闭文件夹的代码。def lockFolder_crossButton():    if userName.get()!='':      answer_folder = getFolderName()     #####check if the folder has already been locked or not!!!!*********      if os.path.exists('./secretFolder/'+userName.get()):          LockFolder.lockFolders(userName.get(), answer_folder)    global timer_active    timer_active = 'no'    window.destroy()上面的代码存在于类“ openApplication.py”中，该类在运行该应用程序时启动。以下Faceface.launch.pyw类的代码导入此类。#!python2.7import sys, osscriptdir, script = os.path.split(__file__)pkgdir = os.path.join(scriptdir, 'pkgs')sys.path.insert(0, pkgdir)os.environ['PYTHONPATH'] = pkgdir + os.pathsep + os.environ.get('PYTHONPATH', '')# APPDATA should always be set, but in case it isn't, try user home# If none of APPDATA, HOME, USERPROFILE or HOMEPATH are set, this will fail.appdata = os.environ.get('APPDATA', None) or os.path.expanduser('~')if 'pythonw' in sys.executable:    # Running with no console - send all stdstream output to a file.    kw = {'errors': 'replace'} if (sys.version_info[0] >= 3) else {}    sys.stdout = sys.stderr = open(os.path.join(appdata, script+'.log'), 'w', **kw)else:    # In a console. But if the console was started just for this program, it    # will close as soon as we exit, so write the traceback to a file as well.    def excepthook(etype, value, tb):        "Write unhandled exceptions to a file and to stderr."        import traceback        traceback.print_exception(etype, value, tb)        with open(os.path.join(appdata, script+'.log'), 'w') as f:            traceback.print_exception(etype, value, tb, file=f)    sys.excepthook = excepthookif __name__ == '__main__':    from openApplication import self    self那么，有什么想法要解决的吗？您如何建议解决该问题？