Programming Exercise 3-1
Programming Exercise 12-6
def main():
# Local variable
num = 0
# Get number as input from the user.
while num <= 0: num = int(input('Enter a positive whole number: ')) # Call the sum_num function and display the sum. print('The sum of 1 -', num, 'is', format(sum_nums(num), ',')) # The sum_nums function accepts an integer argument and returns # the sum of all the integers from 1 up to the number passed as # an argument. def sum_nums(n): if n == 0: return n else: return n + sum_nums(n-1) # Call the main function. main()