如何检查日期是否已通过Python传递（简单）

Question

I have looked around to see if I can find a simple method in Python to find out if a date has passed.

For example:- If the date is 01/05/2015 , and the date; 30/04/2015 was in-putted into Python, it would return True, to say the date has passed.

This needs to be as simple and efficient as possible.

Thanks for any help.

Answer 1

you may use datetime, first parse String to date, then you can compare

import datetime
d1 = datetime.datetime.strptime('05/01/2015', "%d/%m/%Y").date()
d2 = datetime.datetime.strptime('30/04/2015', "%d/%m/%Y").date()
d2>d1

Answer 2

from datetime import datetime
present = datetime.now()
print datetime(2015,04,30) < present #should return true

Sourced some material from this question/answer: How to compare two dates?

Answer 3

Just compare them?

>>> t1 = datetime.datetime.now()
>>> t2 = datetime.datetime.now()
>>> t1>t2
False
>>> t1<t2
True

Answer 4

You can create a simple function which does this:

def has_expired(date):
    import datetime

    return date < datetime.datetime.now()

Answer 5

Two line code here

from datetime import datetime
print datetime(2015,04,30) < datetime.strptime(inputdate, "%d/%m/%Y").date()