martisak

from dateutil.relativedelta import relativedelta
import datetime
today = datetime.datetime.today()
rd = relativedelta(datetime.datetime(2016,8,15,9,0),today).__dict__

periods = ["years", "months", "days", "hours", "minutes", "seconds"]

msg = ["{{{0}}} {0}".format(period).format(**rd)
    for period in periods
    if rd[period] > 0]