[Python] How to create a menu on every frame of a Tkinter application

I'm aware of how to create a basic Tkinter menu bar, but I'm not sure how to implement it such that the menu appears on every frame of a multi-frame GUI.

I will be using the menu bar to switch between frames. Therefore, I need to run the controller.show_frame command within the menu commands. I am currently using buttons to do this.

I'm unable to find a way to do this, as (as far as I am aware) the menu must be created in the frame class rather than the tk.Tk class, in order to allow me to run the function.

Here is the code:

""" Messing about with tkinter """
import tkinter as tk
LARGE_FONT = ("Verdana", 12)

class Window(tk.Tk):
""" Main class """

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

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 frame in (Main, Checker):
current_frame = frame(container, self)
self.frames[frame] = current_frame
current_frame.grid(row=0, column=0, sticky="nsew")

self.show_frame(Main)

def show_frame(self, cont):
""" Raises a particular frame, bringing it into view """

frame = self.frames[cont]
frame.tkraise()

def qprint(quick_print):
""" Function to print a string """
print(quick_print)

class Main(tk.Frame):
""" Main frame of program """

def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="Main Menu", font=LARGE_FONT)
label.pack(pady=10, padx=10)

class Checker(tk.Frame):
""" Password Strength Checker """

def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="Password Checker", font=LARGE_FONT)
label.pack(pady=10, padx=10)


APP = Window()
APP.geometry("350x200")
APP.mainloop()

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