def integerSizing():

    while True:

        positiveIntegers = []

        try:
            while len(positiveIntegers) < 10:
                integer = int(input("Enter Positive Integer: "))
                if integer < 1:
                    print("Integer must be positive")
                    continue

                positiveIntegers.append(integer)
                positiveIntegers.sort()
                largest = positiveIntegers[-1]

            print("The largest number is %d" % largest)
            print("Please choose a new program")

        except ValueError:
            print("Please enter a positive integer.")
            continue
        else:
            return