如何在Python上检查日期是否在范围内？ [英] How can i check if date is on range on Python?

问题描述

我正在尝试检查今天的日期（格式为 dd-mm-yyyy ）是否在给定范围内。

I'm trying to check if today's date (in dd-mm-yyyy format) is in a given range.

我的代码仅检查日期，而不检查月份或年份...您能帮我看看问题是什么吗？

My code only checks the day, not the month or year... Could you help me to see what's wrong?

import datetime
TODAY_CHECK = datetime.datetime.now()
TODAY_RESULT = ('%s-%s-%s' % (TODAY_CHECK.day, TODAY_CHECK.month, TODAY_CHECK.year))
if '26-11-2017' <= TODAY_RESULT <= '30-11-2017':
    print "PASS!"
else:
    print "YOU SHALL NOT PASS, FRODO."

但是这里没有...

But here it doesn't...

import datetime
TODAY_CHECK = datetime.datetime.now()
TODAY_RESULT = ('%s-%s-%s' % (TODAY_CHECK.day, TODAY_CHECK.month, TODAY_CHECK.year))
if '26-11-2017' <= TODAY_RESULT <= '01-12-2017':
    print "PASS!"
else:
    print "YOU SHALL NOT PASS, FRODO."

推荐答案

您正在比较字符串。您应该比较日期时间/日期对象

You are comparing strings. You should compare datetime/date objects

import datetime
TODAY_CHECK = datetime.datetime.now()
start = datetime.datetime.strptime("26-11-2017", "%d-%m-%Y")
end = datetime.datetime.strptime("30-11-2017", "%d-%m-%Y")
if start <= TODAY_CHECK <= end:
    print "PASS!"
else:
    print "YOU SHALL NOT PASS, FRODO."

或者您可以这样做

start = datetime.datetime(day=26,month=11,year=2017)
end = datetime.datetime(day=30,month=11,year=2017)

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