Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Functional Python Functional Workhorses Map and Filter

Posted by Malcolm Aldrin Masumba
Malcolm Aldrin Masumba
3,689 Points

where m i going wrong with this

i keep getting bummer try again

birthdays.py 
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):
    return delta.days >= 4745

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

birth_dates = map(date_string, filter(is_over_13, birthdays))

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

You've got the right idea to take the "days" member of the difference, but this code for "is_over_13" is missing the calculation and assignment of "delta".

Add a line that creates "delta" using "today" and "dt".