''' Purpose: Introduce user defined functions
'''

def wahoo():
    ''' Prints the string Wahoo-wa!!!
    '''
    #return 'Jessica' #once python hits this the function is over

    print( "Wahoo-wa!!!" )
    # If there is no return statement here so default return value is None

    #return 'Tierney'
    # If we put a return statement the function hands back the value after
    # the keyword return

def wahoos( occurrences ):
    ''' This is a doc string. This function executes
        wahoo() occurrences times.
    '''
    #print (occurrences)
    for occurrence in range(0, occurrences):
        #print( 'Wahoo-wa' )
        wahoo()


def year_founded():
    ''' Returns the year UVA was founded
    '''

    return 1819

def clas_credits_to_go(c):
    ''' Returns the number of credits
        needed to graduate based on c
    '''

    CLAS_CREDIT_REQUIREMENT = 120

    needed = CLAS_CREDIT_REQUIREMENT - c
    return needed

#print( 'Quinn' )
# This will run with import of uva.py if not in a function