比较python中的时间增量 [英] Comparing a time delta in python

问题描述

我有一个变量，它是< type'datetime.timedelta'> ，我想将其与某些值进行比较。

I have a variable which is <type 'datetime.timedelta'> and I would like to compare it against certain values.

让我们说d生成这个 datetime.timedelta 值 0：00：01.782000

Lets say d produces this datetime.timedelta value 0:00:01.782000

我想像这样比较：

#if d is greater than 1 minute 
if d>1:00:
  print "elapsed time is greater than 1 minute"

我已经尝试转换 datetime.timedelta.strptime（）但这似乎工作。有更简单的方法来比较这个值吗？

I have tried converting datetime.timedelta.strptime() but that does seem to work. Is there an easier way to compare this value?

推荐答案

你必须要在指定的时间内创建一个新的 timedelta ： / p>

You'll have to create a new timedelta with the specified amount of time:

d > timedelta(minutes=1)

或者这个稍微更完整的脚本将有助于阐述：

Or this slightly more complete script will help elaborate:

import datetime
from time import sleep

start = datetime.datetime.now()
sleep(3)
stop = datetime.datetime.now()

elapsed = stop - start

if elapsed > datetime.timedelta(minutes=1):
    print "Slept for > 1 minute"

if elapsed > datetime.timedelta(seconds=1):
    print "Slept for > 1 second"

输出：

Slept for> 1秒

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