EasyGui(easygui-docs-0.96\tutorial\index.html)

import easygui as g
import sys

while 1:
    g.msgbox('mess1')

    msg = 'ms2'
    title = 'ms3'
    choices = ['a','b','c','d']

    choice = g.choicebox(msg, title, choices)

    g.msgbox('your choice is'+str(choice),'result')

    msg = 'try again'
    title = 'select'

    if g.ccbox(msg, title):
        pass
    else:
        sys.exit(0)