Quick Question about Dictionaries

[Extra]

You should not use recursion for this. Instead of having validate call login if validation fails, login should call validation in a loop until the validation is successful.

def validate(user, password):
    if StandardUsers().get(user) == password:
        MainMenu()#go to mainMenu
        return True
    return False

def login():
    while True:
        user = input("Enter your name: ")
        password = input("Enter your password: ")
        if validate(user, password):
            break
        else:
            print('You are not registered to use this program')

Thanks for the advice.