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Callum AndersonData Analysis Techdegree Student 10,200 Points
Curious of an alternate way of completing the challenge
I understand that with code challenges that its one way or no way from what it wants but really curious to see if this would work or why it doesn't. Code below.
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), ] sorting_dates = sorted(date_list, key=attrgetter(datetime.strptime(date_list, %d))) print(sorting_dates)
Chris FreemanTreehouse Moderator 68,404 Points
Interesting approach. Perhaps you meant to use
strftime which produce a
str from a
datetime object instead of
strptime which produces a
datetime object by parsing a string according to a format template. The argument to
key must be a callable function that produces a comparable object ("a > b", etc.) so it can be applied to each item in the sorted container. Using
strftime and a lambda function passes the challenge:
Also, challenge looking for
sorted_dates = sorted(date_list, key=lambda x: str(attrgetter(x.strftime("%d"))))
Post back if you have more questions. Good luck!!