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Python Functional Python Functional Workhorses attrgetter

Posted by Marco Marco
Marco Marco
Courses Plus Student 12,207 Points

Use sorted() and attrgetter() to sort date_list by the day attribute of each datetime object.

Use sorted() and attrgetter() to sort date_list by the day attribute of each datetime object. Save this sorting into a variable named sorted_dates. i`ve been quiet time trying to understand it without any luck. Any suggestions ?

sorting.py 
import datetime
from operator import attrgetter

date_list = [{
    datetime.datetime(2015, 4, 29, 10, 15, 39),
    datetime.datetime(2006, 8, 15, 14, 59, 2),
    datetime.datetime(1981, 5, 16, 2, 10, 42),
    datetime.datetime(2012, 8, 9, 14, 59, 2),
}]
sorted_dates = sorted(date_list, key = attrgetter("datetime"))

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

Marco Marco You're very close! When using attrgetter(), use the name of the attribute you seek:

sorted_dates = sorted(date_list, key = attrgetter("day"))