In [1]: import datetime
In [2]: L = []
In [3]: for i in range(10):
...: L.append(datetime.datetime.now() - datetime.timedelta(days=i))
...:
In [4]: L
Out[4]:
[datetime.datetime(2017, 3, 20, 13, 23, 21, 840827),
datetime.datetime(2017, 3, 19, 13, 23, 21, 840862),
datetime.datetime(2017, 3, 18, 13, 23, 21, 840871),
datetime.datetime(2017, 3, 17, 13, 23, 21, 840877),
datetime.datetime(2017, 3, 16, 13, 23, 21, 840883),
datetime.datetime(2017, 3, 15, 13, 23, 21, 840888),
datetime.datetime(2017, 3, 14, 13, 23, 21, 840894),
datetime.datetime(2017, 3, 13, 13, 23, 21, 840899),
datetime.datetime(2017, 3, 12, 13, 23, 21, 840904),
datetime.datetime(2017, 3, 11, 13, 23, 21, 840909)]
In [5]: L.sort()
In [6]: L
Out[6]:
[datetime.datetime(2017, 3, 11, 13, 23, 21, 840909),
datetime.datetime(2017, 3, 12, 13, 23, 21, 840904),
datetime.datetime(2017, 3, 13, 13, 23, 21, 840899),
datetime.datetime(2017, 3, 14, 13, 23, 21, 840894),
datetime.datetime(2017, 3, 15, 13, 23, 21, 840888),
datetime.datetime(2017, 3, 16, 13, 23, 21, 840883),
datetime.datetime(2017, 3, 17, 13, 23, 21, 840877),
datetime.datetime(2017, 3, 18, 13, 23, 21, 840871),
datetime.datetime(2017, 3, 19, 13, 23, 21, 840862),
datetime.datetime(2017, 3, 20, 13, 23, 21, 840827)]