Set last day of month in date

Question

how can I set a month date to appear with last day of month. Currently I have

 2008-01-01 for January

but I want it

 2008-01-31. 

Thanks in advance

Answer 1

Use replace of datetime module

import datetime
datetime.datetime.strptime('2008-01-01','%Y-%d-%m').replace(day=31)