How much days left from today to given date

Question

I have a date - 2015.05.20

What is the best way to calculate using python how much days left from today till this date?

from datetime import *
today = date.today()
future = date(2015,05,20)
???

Answer 1

import datetime

today = datetime.date.today()
future = datetime.date(2019,9,20)
diff = future - today
print (diff.days)

diff is a timedelta object.