Valid Year - Dev Shed

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May 10th, 2004, 06:13 PM

rockets12345

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Valid Year

Hi, I am trying to find out how to check if it's a valid year or not i.e. above 1950 and not greater than the current. I have a string in which the first four characters need to be a valid Year. So I am extracting the first four characters and now I need see if all the characters are valid digits and then check for the validity of the year. Any built-in functions I can use or any ideas thanks for help.

May 10th, 2004, 06:41 PM

Scorpions4ever

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Code:

import time

def valid_date(s):
    dtnow = time.localtime()
    year = dtnow[0]
    try:
        y = int(s)
        if y > 1950 and y < year:
            return 1
    except ValueError:
        pass
    return 0        

print valid_date("1984")
print valid_date("abc")
print valid_date("2007")

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May 11th, 2004, 02:32 AM

netytan

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You might want to look at the strftime() and strptime() functions in the time module - i've had alot of fun playing with date formats like this before. Anyway these two are definatly good for comparing/playign with times!

http://www.python.org/doc/2.3.3/lib/module-time.html

Take care,

Mark.

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