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python - 关于 dateutil.relativedelta 的问题 - 为什么输出总是为零？

问题描述

为什么这个 relativedelta 属性的输出也为零？数据文件包含两个日期时间字符串，目的是获取两者的时间差。

# python3.6 time_diff.py
0
0
0
0

# cat data
06/21/2019 21:45:24  06/21/2020 21:45:26
06/21/2019 22:42:25  06/22/2020 01:28:41
06/21/2019 22:41:32  06/21/2020 22:42:32
06/20/2019 23:42:25  06/22/2020 02:42:29

# cat time_diff.py
import dateutil.relativedelta, datetime
    
f = open("data", "r")
for line in f:
   t1 = datetime.datetime.strptime(line.split()[0] + " " + line.split()[1], "%m/%d/%Y %H:%M:%S")
   t2 = datetime.datetime.strptime(line.split()[0] + " " + line.split()[1], "%m/%d/%Y %H:%M:%S")
   rd = dateutil.relativedelta.relativedelta(t1, t2)
   print(rd.seconds)

标签： pythonrelativedeltapython-relativedelta

解决方案

代替

t1 = datetime.datetime.strptime(line.split()[0] + " " + line.split()[1], "%m/%d/%Y %H:%M:%S")
t2 = datetime.datetime.strptime(line.split()[0] + " " + line.split()[1], "%m/%d/%Y %H:%M:%S")

一起去

t1 = datetime.datetime.strptime(line.split()[0] + " " + line.split()[1], "%m/%d/%Y %H:%M:%S")
t2 = datetime.datetime.strptime(line.split()[2] + " " + line.split()[3], "%m/%d/%Y %H:%M:%S")

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