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

Just a mind gap here. Can someone please help me figure this out?

I'm having an issue remembering how to run the method in this function for the month day

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(dt):
    # compare total days
    delta = today - dt
    return delta.days >= 4745

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

2 Answers

For the last task, you have to use map() and filter() which each take a function and an iterable to apply the function to. For map() and filter() the function argument is just the name of the function you want to apply.

2,470 Points

birth_dates = list(map(date_string, filter(is_over_13, birthdays))) OR birth_dates_com = [date_string(j) for j in [i for i in birthdays if is_over_13(i)]]

What is the question here?