python 趣味强制请吃饭

# -*- coding: utf-8 -*-
import easygui

who = easygui.buttonbox("你想请谁吃饭 ?", "luckly question", ['我', '步步', '不请'])

#如果不想右上角的关闭按钮能关闭，屏蔽所有的if who is None 部分
while who != '我':
    easygui.msgbox('why is not me,please once again choice')
    who = easygui.buttonbox("你想请谁吃饭 ?", "luckly question", ['我', '步步', '不请'])
    print(who)
    if who is None:
        break

if who is None:
    pass
else:
    easygui.msgbox("对嘛，请%s吃饭就好啦，不要挣扎" % who)