I am trying to create a Tkinter GUI with multiple pages, each displaying different components mad of different widgets. I’m having trouble working with grids from different objects.

from tkinter import *
import tkinter as tk


class MainWindow(tk.Tk):

    def __init__(self):
        super().__init__()

        MainFrame(self)
#EndClass

class MainFrame(tk.Frame):
""" My pages manager, wich will contain pages and manage how to change them """
    def __init__(self, root):
        super().__init__(root)

        Page()

        MainFrame.mainloop(self)
#EndClass

class Lab(tk.Frame):
""" Some element lik a button with label, for exemple """
    def __init__(self):
        super().__init__()

        #Would be in fact more than just one element
        tk.Label(self, text="AAA", font="Arial 30 bold", bg="red").grid()
#EndClass

class Page(tk.Frame):
""" One page of the application """
    def __init__(self):
        super().__init__()

        Component().grid(row=0, column=0)
#EndClass

class Component(tk.Frame):
""" Functionnal component that could be called in various pages """
    def __init__(self):
        super().__init__()

        #tk.Label(self, text="Label 1", font="Arial 30 bold", bg="red").grid(row=0, column=0, sticky="nswe")
        Lab().grid(row=0, column=0, sticky="nswe")
        tk.Label(self, text="Label 2", font="Arial 30 bold", bg="blue").grid(row=0, column=1, sticky="nswe")
        tk.Label(self, text="Label 3", font="Arial 30 bold", bg="blue").grid(row=1, column=0, sticky="nswe")
        tk.Label(self, text="Label 4", font="Arial 30 bold", bg="red").grid(row=1, column=1, sticky="nswe")
#EndClass

I would like each pages to have their own grid, in which I could place my components in.
Similarly, I’d like to place elements in components grid.

I tried many changes in my previous code, but can’t display at the same time both the Lab object and the labels.