Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Functional Python Functional Workhorses Map and Filter

Britt Danzer
Britt Danzer
19,539 Points

Keep getting error message didn't get correct items in birth_dates

I'm unsure why this is returning an error when in VS code it is returning the correct answer

import datetime

birthdays = [
    datetime.datetime(2012, 4, 29),
    datetime.datetime(2006, 8, 9),
    datetime.datetime(1978, 5, 16),
    datetime.datetime(1981, 8, 15),
    datetime.datetime(2001, 7, 4),
    datetime.datetime(1999, 12, 30)

today = datetime.datetime.today()

def is_over_13(datetime):
    return today.year*365 - datetime.year*365 >= 4745

def date_string(datetime):
    return datetime.strftime("%B %d")

birth_dates = map(date_string, filter(is_over_13, birthdays))
Cheo R
Cheo R
37,150 Points

I copied and pasted your code. Passed with n problem. Try restarting the exercise.

1 Answer

I think there is a problem with your is_over_13 formula. What you have considers the year but not the number of days. To make it a little easier to see divide by 365 and you have:

today.year - datetime.year >= 13.

Use the second birthday, datetime.datetime(2006, 8, 9), to test

With your formula:

2019 - 2006 >= 13 is true. However the person won't be 13 until 8,9 so the answer should be false.

I used:

(today - datetime).days