simple_cli_interactive_menu

def function1():
    """Description of Function 1."""
    pass

def funciton2():
    """Description of Function 2."""
    pass
    
def function3():
    """Description of Function 3."""
    pass

def menu_exit():
    """Exit the program."""
    sys.exit()

menu = (
    ('1', function1),
    ('2', function1),
    ('3', function1),
    ('4', function1),
        )
menu = OrderedDict(menu)

if __name__ == '__main__':

    while True:
        print('='*30)
        print('Program Name')
        print('='*30)
        for n, func in menu.items():
            print('{0} - {1}'.format(n, func.__doc__))
        selection = input('Select an option:')

        try:
            menu[selection]()
        except KeyError:
            print('Invalid Option')