subtract one day in sqlalchemy code example

Example 1: how to add and subtract days datetime python

a_date = datetime.date(2015, 10, 10)
days = datetime.timedelta(5)

new_date = a_date - days
#Subtract 5 days from a_date


print(new_date)
#OUTPUT
#2015-10-05

Example 2: python timestamp shift one day

from datetime import datetime, timedelta
print datetime.now() + timedelta(days=5, hours=-5)