如何使用python获取精确时间的占用计数数据集，并返回每小时最大值的数据集？

import time
from collections import defaultdict

count_data = defaultdict(int)

def get_usage_count():
    return time.time()

while True:
    current_time = time.localtime()
    hour = current_time.tm_hour
    count = get_usage_count()
    count_data[hour] = max(count_data[hour], count)
    time.sleep(60)  # 每分钟获取一次数据

max_values = [(hour, count) for hour, count in count_data.items()]