[Tkinter] Tkinter classes

[Yoriz]

When you inherit from another class you don't call it
simply change

class Window(tk.Tk()):

to

class Window(tk.Tk):

and your code will work.

Here is an example of your previous post code with the forms as separate classes

import tkinter as tk


class MainFrame(tk.Tk):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.form1 = Form1(self, background="pink")
        self.form2 = Form2(self, background="lightblue")
        self.form2.btn.bind("<Button-1>", self.on_form2_button)

    def on_form2_button(self, event):
        print("form2 button clicked")


class Form1(tk.Frame):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.pack(fill=tk.BOTH, expand=1)
        lbl = tk.Label(self, text="Form1")
        lbl.pack(expand=1)


class Form2(tk.Frame):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.pack(fill=tk.BOTH)
        self.btn = tk.Button(self, text="Form2")
        self.btn.pack()


if __name__ == "__main__":
    main_frame = MainFrame()
    main_frame.mainloop()