GTK Key Press Secret Code - idqd

#!/usr/bin/env python

import gtk,os,random

class WIN:
    def __init__(self):
        self.CODE=""
        self.win=gtk.Window()
        self.win.connect("destroy", lambda w:gtk.main_quit())
        self.win.show()

        self.vbox=gtk.VBox()
        self.win.add(self.vbox)
        self.win.connect("key-press-event", self.closeme)
        self.win.connect("key-press-event", self.code)
        for i in range(0,5):
            filename="/usr/share/dict/words"
            file=open(filename,'r')
            file_size=os.stat(filename)[6]
            file.seek((file.tell()+random.randint(0,file_size-1))%file_size)
            file.readline()
            line=file.readline()

            self.button=gtk.Button(line)
            self.button.connect("clicked", self.Title_Changer, line)

            self.vbox.pack_start(self.button)
        self.win.show_all()

    def Title_Changer(self, widget, title):
        self.win.set_title(title)

    def closeme(self, widget, event):
        if event.keyval == gtk.keysyms.Escape:
            gtk.main_quit()

    def code(self, widget, event):
        if event.keyval == gtk.keysyms.i:
            self.CODE="i"
        else:
            self.CODE=self.CODE + chr(event.keyval)
        print self.CODE
        if self.CODE == "idqd":
            self.CODE=''
            self.alert()

    def alert(self):
        msgbox = gtk.MessageDialog(self.win,gtk.DIALOG_DESTROY_WITH_PARENT,gtk.MESSAGE_WARNING,gtk.BUTTONS_CLOSE, "You Win" )
        msgbox.run()
        msgbox.destroy()

mainapp=[]

for i in range(1,4):
    mainapp.append(WIN())
gtk.main()