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.

Jason Smith
7,697 Pointsname 'timedelta' is not defined. Any hints? Help appreciated
i imported the library, so i'm not sure why it doesn't accept what i gave it.
import datetime
def minutes(datetime_1,datetime_2):
seconds_1 = timedelta.totalseconds(datetime_1)
seconds_2 = timedelta.totalseconds(datetime_2)
return round((seconds_2 - seconds_1) / 60)
2 Answers

Jason Smith
7,697 Pointswhere did you get the value 5 from?

Mark Chesney
11,698 PointsHi Jason,
I think I found the problem:
import datetime
seconds_1 = datetime.timedelta(seconds=5)
datetime
is the module that contains the class timedelta
. timedelta
receives a parameter named seconds
(among others)
Mark Chesney
11,698 PointsMark Chesney
11,698 Points5 was absolutely arbitrary; sorry for any confusion.
Two options for importing:
Option 1 (recommended): import the entire datetime module requires explicit
datetime.timedelta
belowOption 2: from the datetime module, importing only the timedelta class then timedelta on its own will work
Either way,
seconds
is a necessary attribute name, andtotalseconds
will not work.