How do I check date of birth format is correct

Question

I'm currently coding an account signup on python and I need the user to enter their date of birth in the format DD/MM/YYYY.

How would I be able to check in the code if the input is valid or not?

dob=input("Enter your date of birth in the format DD/MM/YYYY")

https://stackoverflow.com/questions/16870663/how-do-i-validate-a-date-string-format-in-python — Ashu, Jun 23 '17 at 08:49
Possible duplicate of [How can I validate a date in Python 3.x?](https://stackoverflow.com/questions/2216250/how-can-i-validate-a-date-in-python-3-x) — Nilesh Khisadiya, Jun 23 '17 at 09:18

score 2 · Accepted Answer · answered Jun 23 '17 at 08:49

2

import datetime

try:
    date_of_birth = datetime.datetime.strptime(dob, "%d/%m/%Y")
except:
    print("Incorrect date!")

answered Jun 23 '17 at 08:49

Błotosmętek

12,717
19
29

score 1 · Answer 2 · answered Jun 23 '17 at 08:48

1

Use following code

from datetime import datetime
i = str(raw_input('date'))
try:
    dt_start = datetime.strptime(i, '%d/%m/%Y')
except ValueError:
    print "Incorrect format"

answered Jun 23 '17 at 08:48

Jay Parikh

2,419
17
13

2

`raw_input()` returns a string, so there's no use in calling `str(raw_input())` – Thierry Lathuille Jun 23 '17 at 10:50

score 0 · Answer 3 · answered Jun 23 '17 at 08:49

Try using the datetime library

from datetime import datetime  
def validate(date_text):
        try:
            datetime.datetime.strptime(date_text, '%d/%m/%Y')
        except ValueError:
            raise ValueError("Incorrect data format, should be YYYY-MM-DD")

How do I check date of birth format is correct

3 Answers3