从python中csv文件的当前日期时间中减去日期时间

import csv
from datetime import datetime

with open('data.csv', 'r') as file:
    reader = csv.reader(file)
    for row in reader:
        date_str = row[0]  # 假设日期时间在第一列
        date_time = datetime.strptime(date_str, '%Y-%m-%d %H:%M:%S')  # 解析日期时间

current_time = datetime.now()

time_difference = current_time - date_time

days = time_difference.days
hours = time_difference.seconds // 3600
minutes = (time_difference.seconds // 60) % 60
seconds = time_difference.seconds % 60

print(f"日期时间差：{days}天 {hours}小时 {minutes}分钟 {seconds}秒")