''' Purpose: use programmer-defined functions from module uva
'''

import uva                                  # get access to module being tested


# test credits_to_go()

reply = input( "Enter credits earned: " )
credits_earned = int( reply ) # Here's what the user supplied.

credits_needed = uva.credits_to_go( credits_earned ) # Pass in argument credits_earned!
# credits_earned replaces the parameter n. credits_earned is the ARGUMENT
# with the explicit value to replace the placeholder parameter n in the function
# definition! If the user types 18, reply = '18', credits_earned is 18


print( "credits_to_go(", credits_earned, "):", credits_needed )

print()


# test how_old_is_UVA()


age = uva.how_old_is_UVA()

print( "how_old_is_UVA():", age )

# test grade_as_percent( right, total )

reply = input("Enter right and total: ")    # If I enter '61 100'
right, total = reply.split()                # '61', '100'
right, total = int( right ), int( total )   # 61, 100

# Pass it into the function

# IMPORTANT
# variable = function call = function( arguments )
# variable stores the result of the function call!

# pct stores the return value of the function call!
pct = uva.grade_as_percent( right, total ) # pass in arguments right and total into function

print( pct ) # If we didn't return the string of percent%, we could've done print(pct,'%')