我正在尝试使用面向对象的方法来创建一个从 tkinter 的 Toplevel 继承的类,通过按下主窗口中的按钮来触发。
当前代码引发 AttributeError('MakeWindow' 对象没有属性 'tk')。谁能指出我正确的方向?
#! python3
import tkinter as tk
class Application:
def __init__(self, master):
self.frame = tk.Frame(master)
self.frame.pack()
self.okButton = tk.Button(self.frame, text="OK",
command=self.window_maker).pack()
self.quitButton = tk.Button(self.frame, text="Close",
command=self.frame.quit).pack()
def window_maker(self):
MakeWindow("A message to Toplevel")
class MakeWindow(tk.Toplevel):
def __init__(self, message):
super().__init__(self)
self.message = message
self.display = tk.Label(self, text=message)
self.display.pack()
if __name__ == '__main__':
root = tk.Tk()
app = Application(root)
root.mainloop()
完整追溯:
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users\r\AppData\Local\Programs\Python\Python35\lib\tkinter\__init__.py", line 1550, in __call__
return self.func(*args)
File "C:/Users/r/PycharmProjects/tkinter_gui/y.py", line 15, in window_maker
MakeWindow("A message to Toplevel")
File "C:/Users/r/PycharmProjects/tkinter_gui/y.py", line 20, in __init__
super().__init__(self)
File "C:\Users\r\AppData\Local\Programs\Python\Python35\lib\tkinter\__init__.py", line 2182, in __init__
BaseWidget.__init__(self, master, 'toplevel', cnf, {}, extra)
File "C:\Users\r\AppData\Local\Programs\Python\Python35\lib\tkinter\__init__.py", line 2132, in __init__
BaseWidget._setup(self, master, cnf)
File "C:\Users\r\AppData\Local\Programs\Python\Python35\lib\tkinter\__init__.py", line 2110, in _setup
self.tk = master.tk
AttributeError: 'MakeWindow' object has no attribute 'tk'