Convert date integers (ex. 43831) to regular format

[Galven]

Hi,

I'm currently learning Python 3 and I am struggling with converting date integers into another format.
The dates have the format 43831, 43832, etc. 43831 being 01-01-2020.

What line of code I need to use to convert my whole column into, let's say, a date format "dd-mm-yyyy"?



Screenshot if the above deson't work: https://ibb.co/rm044MN
I tried things, in vain.

Thank you.

[buran]

post your code, sample input, expected output, full error traceback as text, using proper BBCode tags.
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See BBcode help for more info.
Are these comming from Excel?

[bowlofred]

Something like this would be a start...

>>> from datetime import datetime,timedelta
>>> (datetime(1900, 1, 1) + timedelta(days=43831-2)).strftime("%d-%m-%Y")
'01-01-2020'