Function do_rounds

example_code/item_112.py:66–77

(database, species, *, now_func=datetime.now)

from datetime import datetime

def do_rounds(database, species, *, now_func=datetime.now):
    now = now_func()
    feeding_timedelta = database.get_food_period(species)
    animals = database.get_animals(species)
    fed = 0

    for name, last_mealtime in animals:
        if (now - last_mealtime) >= feeding_timedelta:
            database.feed_animal(name, now)
            fed += 1

    return fed


print("Example 3")