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 Dates and Times in Python Let's Build a Timed Quiz App Timestamp Ordering

Ralph Hellstern
Ralph Hellstern
5,390 Points

timestamp_oldest

What is wrong with my code? Thank you!

timestamp.py
# If you need help, look up datetime.datetime.fromtimestamp()
# Also, remember that you *will not* know how many timestamps
# are coming in.
import datetime

def timestamp_oldest(*args):
    list1 = [*args]
    list2 = list1.sort()
    oldest = list2[0]
    return datetime.datetime.fromtimestamp(oldest)

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 66,727 Points

Hey Ralph Hellstern, you are very close. The sort() method sorts a list in place and returns a None value. The leaves your list2 set to None.

Use simply list.sort() alone.

:point_right: change oldest to be derive from list1 and you should be golden!

Ralph Hellstern
Ralph Hellstern
5,390 Points

Thank you! This was really helpful.