Python 3.x tkinter中包含类的新窗口为空

我有一些测试代码，它定义了几个窗口和函数（一个用于显示框架，一个用于新窗口）。我在创建新的_窗口函数时遇到了一个错误，因为它没有打开指定的窗口，而是打开了一个空白窗口。我认为这是因为我在与主类相关的类中定义了窗口，框架在主类中定义，但窗口不是，但我担心我对如何调试迷茫了

非常感谢任何帮助

import tkinter as tk
from tkinter import ttk
from tkinter.filedialog import askopenfilename

class Randomize(tk.Tk):

    def __init__(self, *args, **kwargs):

        tk.Tk.__init__(self, *args, **kwargs)

        tk.Tk.wm_title(self, "Randomize those names!")

        container = tk.Frame(self)
        container.pack(side="top", fill="both", expand = True)
        container.grid_rowconfigure(0, weight=1)
        container.grid_columnconfigure(0, weight=1)

        self.frames = {}

        for F in (HomeWindow, NewWin):

            frame = F(container, self)
            self.frames[F] = frame
            frame.grid(row=0, column=0, sticky="nsew")

        self.show_frame(HomeWindow)

    def show_frame(self, cont):
        frame = self.frames[cont]
        frame.tkraise()

##trying to create a new window instead of just changing the original one        
    def new_window(self, cont):
        window = tk.Toplevel(self)
        window.tkraise() 

class HomeWindow(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self,parent)

        label = ttk.Label(self, text="Choose a File and Start")
        label.pack(pady=10,padx=10)

##calls NewWin in a new frame but the same window, works     
        button = ttk.Button(self, text="File",
                            command=lambda: controller.show_frame(NewWin))
        button.pack()
##should call NewWin through new_window, instead opens blank window    
        button2 = ttk.Button(self, text="New Window",
                            command=lambda: controller.new_window(NewWin))
        button2.pack()

class NewWin(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = ttk.Label(self, text="NewWindow")
        label.pack(pady=10,padx=10)

        button1 = ttk.Button(self, text="Back to Home",
                            command=lambda: controller.show_frame(HomeWindow))
        button1.pack()

app = Randomize()
app.mainloop()

应该是

def new_window(self, cont):
    window = tk.Toplevel(self)
    frame = cont(window, window) # cont = NewWin
    frame.pack()

但框架中的按钮不起作用。新窗口没有

show\u frame（）

方法

也许如果你使用

    frame = cont(window, self) # self

---

然后，新窗口中的按钮将更改主窗口中的框架。

TopLevel

始终创建空窗口-代码正常工作。现在您必须将

NewWin

frame放入此窗口。谢谢，这非常有用！