test.py

horse_names = []
horse_finish_times = []

def register_horse(horse_name, horse_number):
    horse = [horse_number, horse_name]
    horse_names.append(horse)
    print("Registered horse")

def record_race_data(horse_number, finish_time):
    horse = [horse_number, finish_time]
    horse_finish_times.append(horse)
    print("Recorded horse finish time")

def calculate_race_winner():
    lowest_time = 10000
    horse_number = 0
    for i in range(0, len(horse_names)): 
        finish_time = horse_finish_times[i][1]
        if finish_time < lowest_time:
            lowest_time = finish_time
            horse_number = horse_finish_times[i][0]
    fastest_horse_number = horse_number
    print("Fastest horse is {}".format(fastest_horse_number))
    return fastest_horse_number

def display_times():
    for i in range(0, len(horse_names)):
        print("Number: {} Name: {} Finish Time: {}".format(horse_names[i][0], horse_names[i][1], horse_finish_times[i][1]))

def print_horse_name(horse_number):
    # print horse name given a horse number
    for i in range(0, len(horse_names)):
        current_horse_number = horse_names[i][0]
        if current_horse_number == horse_number:
            print("Horse with number {} is {}".format(horse_number, horse_names[i][1]))

def get_horse_number():
    horse_number = ""
    while horse_number == "":
        try:
            horse_number = input("Horse Number: ")
            horse_number = int(horse_number)
        except ValueError:
            print("Please enter the horse number correctly.")
            horse_number = ""
    return horse_number

def get_horse_finish_time():
    horse_number = ""
    while horse_number == "":
        try:
            horse_number = input("Horse Finish Time: ")
            horse_number = int(horse_number)
        except ValueError:
            print("Please enter the horse finish time correctly.")
            horse_number = ""
    return horse_number

def main():
    horse_count = 3

    for i in range(0, horse_count):
        horse_number = get_horse_number()
        horse_name = input("Horse Name: ")
        register_horse(horse_name, horse_number)

    for i in range(0, horse_count):
        horse_number = get_horse_number()
        horse_finish_time = get_horse_finish_time()
        record_race_data(horse_number, horse_finish_time)


    fastest_horse_number = calculate_race_winner()
    print_horse_name(fastest_horse_number)

    display_times()


main()