AttributeError：'int'对象没有属性'get'？

Question

基本上，我在调用#Topscores方法时创建了另一个窗口。在此窗口中有一个列表框和一个排序按钮。

当我点击排序按钮时，它会假设对列表框中的值进行排序，但每当我点击排序按钮时，它会显示

  

AttributeError：'int'对象没有属性'get'

在这行代码上

temp_list = list(topscoreslistbox.get(0,END))

任何人都可以帮我这个吗？

顺便说一句，Listbox如何获取其值来自#TopscoresStop方法。

def main():
        root = Tk()
        root.wm_attributes("-topmost", 1)
        root.title("Solar Car Racing")
        root.geometry("1600x900")
        topscoreslistbox = 0

        sw = StopWatch(root)
        sw.place(x=120, y=80)

        sw2 = StopWatch2(root)
        sw2.place(x=840, y=80)

    def Topscores():
        toplevel() = Toplevel()
        toplevel.title("Top Scores")
        topscoreslistbox = Listbox(toplevel, selectmode=EXTENDED, height=3, width=20, font=("Helvetica", 26))                   
        topscoreslistbox.pack(side=RIGHT, fill=BOTH, expand=1, pady=5, padx=2)

        first = Label(toplevel, text=("1st"), font=("Algerian", 30))
        first.pack(side=TOP)

        second = Label(toplevel, text=("2nd"), font=("Algerian", 30))
        second.pack(side=TOP)     

        third = Label(toplevel, text=("3rd"), font=("Algerian", 30))
        third.pack(side=TOP)  

        Buttonsort = Button(toplevel, text="Sort", command=Sort)
        Buttonsort.pack()        

    def TopscoresStop():
        tempo = sw._elapsedtime - sw.lapmod2
        tempo2 = sw2._elapsedtime2 - sw2.lapmod2

            if sw._running:
                sw.after_cancel(sw._timer)            
                sw._elapsedtime = time.time() - sw._start    
                sw._setTime(sw._elapsedtime)
                sw._running = 0

            if len(sw.laps) == 3:
                return

            sw.laps.append(sw._setLapTime(tempo))
            topscoreslistbox.insert(END, (str(sw.one.get()) , "%.2f" % sw._elapsedtime))
            topscoreslistbox.yview_moveto(1)

            if sw2._running2:
                sw2.after_cancel(sw2._timer2)            
                sw2._elapsedtime2 = time.time() - sw2._start2    
                sw2._setTime(sw2._elapsedtime2)
                sw2._running = 0

            if len(sw2.laps) == 3:
                return

            sw2.laps.append(sw2._setLapTime(tempo))
            topscoreslistbox.insert(END, (str(sw.two.get()) , "%.2f" % sw2._elapsedtime2))
            topscoreslistbox.yview_moveto(1)

    def Sort():
        temp_list = list(topscoreslistbox.get(0,END))
        temp_list.sort()
        topscoreslistbox.delete(0, END)
        for item in temp_list:
            topscoreslistbox.insert(END, item)