使用Python中的DateTime模块比较时间

Question

我必须找到格式 datetime.datetime.now().replace(microsecond=0)的某个时间段是否大于5分钟。我怎样才能做到这一点？这是我的代码：

ttime = datetime.now().replace(microsecond=0)
print "Current Time:- "+str(ttime)
a = raw_input("Press y and Enter")
if a=="y":
    print "OK!"
    ntime = datetime.now().replace(microsecond=0)
    difference = ntime-ttime
    if difference> #I don't know what to put!:
        print "Difference is greater than 5 min"
    else:
        print "Difference is not greater than 5 min"

Answer 1

您可以使用difference = timedelta(minutes=5)：

>>> from datetime import datetime, timedelta
>>> ttime = datetime.now().replace(microsecond=0)
>>> ntime = datetime.now().replace(microsecond=0)
>>> ntime - ttime > timedelta(minutes=5)
True

timedelta用5分钟初始化的对象：

>>> timedelta(minutes=5)
datetime.timedelta(0, 300)

要获取更多信息，请阅读有关timedelta对象的文档。

Answer 2

import datetime
ttime = datetime.datetime.now().replace(microsecond=0)
print "Current Time:- "+str(ttime)
a = raw_input("Press y and Enter")
if a=="y":
    print "OK!"
    ntime = datetime.datetime.now().replace(microsecond=0)
    if ttime < ntime - datetime.timedelta(minutes=5):
        print "Difference is greater than 5 min"
    else:
        print "Difference is not greater than 5 min"