When it comes to menus, this is what I do:

print("===Menu===")
print("1. Option A")
print("2. Option B")
print("3. Option C")
choice = input("Enter the number of your choice:")
if choice == 1:
 print("You chose option 1!")
else if choice == 2:
 print("You chose option 2!")
else if choice == 3:
 print("You chose option 3!")

I Hope this helps!

Solutin

you can make menus with functions, or no functions, or classes anything. but functions would be preferred, since you could call them again, and again.

def menu():
   # Code to menu

like that. make your menu stuff there, and call the name where you want it.

menu()

like that.
It should work

For this, you can use functions, it can reuse it every time you call it!

# The menu function
def menu():
    # Your code here

# Every time you want to call it,
# just do:
menu()
# Easy! right?

Methods are a term from classes, it's basically functions but it's scope is only inside the class and not globally like functions. To call it, you will need to call the class name, then a ., and finally the method name:

# A simple example of classes in Python
class Breakfast:
    def serve(who):
        print("Have a nice breakfast, " + who + "!")

# Use it is like this:
Breakfast.serve("John")

# Output:
# Have a nice breakfast, John!

You should learn more about Python classes to know more about it!