How to go back days on datetime, python?

Question

I need to return a string in the format "dd/mm/yyyy" in python, I got through the library datetime.

import datetime
date = datetime.datetime.now().strftime("%d/%m/%y")

But I also need the date 7 days ago, a week earlier.

Answer 1

Here’s what you can do, datetime.timedelta:

import datetime

date_now = datetime.datetime.now()
seven_days_ago = date_now - datetime.timedelta(days=7)
print('now:', date_now.strftime("%d/%m/%y")) # 02/01/18
print('7 dias atrás:', seven_days_ago.strftime("%d/%m/%y")) # 26/12/17

DEMONSTRATION