# Dialog.py -- Tkinter interface to the tk_dialog script. from Tkinter import *from Tkinter import _cnfmerge if TkVersion <= 3.6:    DIALOG_ICON = 'warning'else:    DIALOG_ICON = 'questhead'  class Dialog(Widget):    def __init__(self, master=None, cnf={}, **kw):        cnf = _cnfmerge((cnf, kw))        self.widgetName = '__dialog__'        Widget._setup(self, master, cnf)        self.num = self.tk.getint(                self.tk.call(                      'tk_dialog', self._w,                      cnf['title'], cnf['text'],                      cnf['bitmap'], cnf['default'],                      *cnf['strings']))        try: Widget.destroy(self)        except TclError: pass    def destroy(self): pass def _test():    d = Dialog(None, {'title': 'File Modified',                      'text':                      'File "Python.h" has been modified'                      ' since the last time it was saved.'                      ' Do you want to save it before'                      ' exiting the application.',                      'bitmap': DIALOG_ICON,                      'default': 0,                      'strings': ('Save File',                                  'Discard Changes',                                  'Return to Editor')})    print d.num  if __name__ == '__main__':    t = Button(None, {'text': 'Test',                      'command': _test,                      Pack: {}})    q = Button(None, {'text': 'Quit',                      'command': t.quit,                      Pack: {}})    t.mainloop()