How to find the date n days ago in Python?

Question

Good evening chaps,

I would like to write a script where I give python a number of days (let s call it d) and it gives me the date we were d days ago.

I am struggling with the module datetime:

import datetime   tod = datetime.datetime.now() d = timedelta(days = 50)  a = tod - h  Type Error : unsupported operand type for - : "datetime.timedelta" and  "datetime.datetime"  

Thanks for your help

Answer 1

You have mixed something up with your variables, you can subtract timedelta d from datetime.datetime.now() with no issue:

import datetime  tod = datetime.datetime.now() d = datetime.timedelta(days = 50) a = tod - d print(a) 2014-12-13 22:45:01.743172 

Answer 2

Below code should work

from datetime import datetime, timedelta  N_DAYS_AGO = 5  today = datetime.now()     n_days_ago = today - timedelta(days=N_DAYS_AGO) print today, n_days_ago