Tkinter：'int' 对象不支持项目分配

Question

我有一个很大的问题。前段时间我将两个代码合并到这个代码中，我早些时候解决了这个问题，现在合并它们后它又回来了，我真的不知道现在该怎么办，所以我会很感激我能得到的每一个帮助。我收到这个烦人的错误消息：

TypeError: 'int' object does not support item assignment

我不明白我刚刚去掉它怎么会出现

import tkinter as tk

NUM_BUTTONS = 2
button_list = [1, 2]
label_list = [1, 2]
label_text_list = [1, 2]


class Demo1:

    def __init__(self, master):
        self.master = master
        self.frame = tk.Frame(self.master)
        self.button1 = tk.Button(text='Menu', command=self.new_window)
        self.button1.grid(row=3, column=1)
        self.button2 = tk.Button(text='Quit', command=self.close_windows)
        self.button2.grid(row=3, column=3)
        self.label1 = tk.Label(text='Controller')
        self.label1.grid(row=1, column=2)

    def new_window(self):
        self.newWindow = tk.Toplevel(self.master)
        self.app = Demo2(self.newWindow)

    def close_windows(self):
        self.master.destroy()


class Demo2:

    def __init__(self, master):
        self.master = master
        self.frame = tk.Frame(self.master)

        for i in range(NUM_BUTTONS):

            def wrap(button_num=i):
                toggle_text(button_num)

            button = tk.Button(
                self.frame, text='WL', width=12, bg='red', command=wrap)
            button.grid(row=2, column=i)
            button_list.append(button)

            label = tk.Label(
                self.frame, text=label_text_list[i], width=12, bg='red')
            label.grid(row=1, column=i)
            label_list.append(label)
            self.frame.pack()

            def toggle_text(button_num):
                self.button = button_list[button_num]
                label = label_list[button_num]

                if button['text'] == 'WL':
                    button['text'] = 'WYL'
                    label['bg'] = 'green'

                else:
                    button['text'] = 'WL'
                    label['bg'] = 'red'

    def close_windows(self):
        self.master.destroy()


def main():
    root = tk.Tk()
    app = Demo1(root)
    root.mainloop()

if __name__ == '__main__':
    main()

Answer 1

label 是一个整数

label = label_list[button_num] 正在使用顶部的 label_list label_list = [1, 2]

然后您正在尝试为其设置属性

 2["color"] = "green"

显然行不通:)

您可以通过将顶部的行更改为

来修复它

label_list = []

Tkinter：'int' 对象不支持项目分配

Tkinter: 'int' object does not support item assignment

python

user-interface

tkinter