[Tkinter] Forms' expansion

[Yoriz]

Something like this ?

import tkinter as tk


class MainFrame(tk.Frame):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.create_form1()
        self.create_form2()

    def create_form1(self):
        form1 = tk.Frame(self.master, background="pink")
        form1.pack(fill=tk.BOTH, expand=1)
        lbl = tk.Label(form1, text="Form1")
        lbl.pack(expand=1)

    def create_form2(self):
        form2 = tk.Frame(self.master, background="lightblue")
        form2.pack(fill=tk.BOTH)
        btn = tk.Button(form2, text="Form2")
        btn.pack()


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