''' Purpose: define some functions related to UVA
'''

# No Parameters, Returns 1819

def year_founded():
    year = 1819
    return year

# One Parameter, returns to_do (calculation)

def credits_to_go( number_of_credits_so_far ):
    to_do = 120 - number_of_credits_so_far
    return to_do

# Two Parameters, returns average (calculation), calls function within function

def credits_per_semester_remaining( number_of_credits_so_far , number_semesters_so_far ):
    to_do = credits_to_go( number_of_credits_so_far )           # Call a function within a function!!!
    numbers_of_semesters_left = 8 - number_semesters_so_far
    average = to_do / numbers_of_semesters_left
    return average