############################################################
#
# Ask the Question.
# Get the answer.
# If Yes    ..... rejoice!
# If No     ..... weep!
# Otherwise ..... Error!!!!!


# Data Structures
# ===============

# Many ways to say Yes ... Maybe a tuple of all?
#                          To test response against
# Many ways to say No  ... Maybe a tuple of all?
#                          To test response against
############################################################

def Y_N():

    Yes = ('Y', 'y', 'yes', 'Yes', 'YES');
    No  = ('N', 'n', 'no' , 'No' , 'NO' );

    while True:
        Response = input("Do you understand Loops yet???  ");

        if   Response in Yes:
            print("Jolly Good!");       break
        elif Response in No:
            print("Well, Try harder!"); break
        else:
            print("Answer must be Yes or No!")

#############################################################################
# TEST BED


Y_N()