Time value does not match the format. ValueError in python

Question

I am trying to convert a string to datetime object using the strptime function.

I am encountering a ValueError that says format doesn't match, so I did double checking and confirmed that the format in the string matches the format I am passing as the parameter for strptime.

I have also referenced this question: time data does not match format but there the month and year were swapped.

So does this only work with the '%y-%m-%d %H:%M:%S' format or is it dynamic as per the user input like in my case '%y-%m-%d-%H:%M:%S' ?

input:-

from datetime import datetime

stg = "2022-10-31-01:17:46"

do = datetime.strptime(stg, '%y-%m-%d-%H:%M:%S')

output

ValueError: time data '2022-09-31-01:17:46' does not match format '%y-%m-%d-%H:%M:%S'

Expected output:

#while printing 'do'
2020-09-31-01:17:46

Answer 1

You're almost there. You need %Y instead of %y since you're providing the year with the century (2022 instead of 22).

Your code would be

from datetime import datetime

stg = "2022-10-31-01:17:46"

do = datetime.strptime(stg, '%Y-%m-%d-%H:%M:%S')