我想了解递归过程？

Question

houses = ["Shaah's house", "Joseph's house", "Kyle's house", "Stan's house"]

def deliver_presents_recursively(houses):

    # Worker elf doing his work

    if len(houses) == 1:

        house = houses[0]

        print("Delivering presents to", house)

    else:

        mid = len(houses) // 2

        first_half = houses[:mid]

        second_half = houses[mid:]

        # Divides his work among two elves

        deliver_presents_recursively(first_half)

        deliver_presents_recursively(second_half)

交付呈现_递归（房屋）