import datetime
d1 = datetime.date(2015,10,7)
d2 = datetime.date(2015,8,15)
print((d1-d2).days)
2024-01-12 08:22:46
import datetime
d1 = datetime.date(2015,10,7)
d2 = datetime.date(2015,8,15)
print((d1-d2).days)