Error: NoneType ‘object has no attribute ‘seconds’

Time-famifamifamifamitime _operationon/date date date
import date
import date date
import date date
start time = datetime.date.time.now(()
> endtime = datetime.date.date.now(()
> endtime = date.date.date.now(),
print (endtime-starttime). seconds
print(endtime-starttime). seconds
> change after changes:
import date
date
import date
date> starttime
starttime = date date date date.date.time.now()
s
print(a)