def winner(user_action, computer_choice):

    if user_action == rock and computer_choice == 1:
        print("It's a tie!")
    elif user_action == '1' and computer_choice == 2:
        print('The computer wins')
    elif user_action == '1' and computer_choice == 3:
        print('You win!')

    elif user_action == '2' and computer_choice == 1:
        print('You win!')
    elif user_action == '2' and computer_choice == 2:
        print("It's a tie!")
    elif user_action == '2' and computer_choice == 3:
        print('You lose!')

    elif user_action == '3' and computer_choice == 1:
        print('You lose!')
    elif user_action == '3' and computer_choice == 2:
        print("You win!")
    elif user_action == '3' and computer_choice == 3:
        print('You Tied!')

    #return winner


def menu():

    print('\n    MENU')
    print('(1) Rock')
    print('(2) Paper')
    print('(3) Scissors')
    print('(4) Quit')
    print()

    user_action = input('Chose your action by pressing 1, 2, 3 or 4. ')

    while user_action != '1' and user_action != '2' and user_action != '3' \
          and user_action != '4':
        print('\nError: Invalid selection ')
        user_action = input('\nPlease enter a number between 1 and 4 ')

    return user_action