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![Elizabeth McInerney](https://secure.gravatar.com/avatar/78b99013b1e483da07a7b6ed77c9f32f?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Elizabeth McInerney
3,175 Pointstime_worked
In the video Manipulating Time Already, in Dates and Times, I don't understand how he can use a dir on time_worked when time_worked is just a variable set to an equation (datetime.datetime.now() - treehouse_start).
1 Answer
![Chris Freeman](https://uploads.teamtreehouse.com/production/profile-photos/1153532/micro_image.jpg)
Chris Freeman
Treehouse Moderator 68,423 PointsSomething to remember: Everything in Python is an object. When assigning a variable it is going to be some object based upon the objects used in the equation. There is a bit of magic involved with datetime
. When two datetime
objects are added or subtracted the result is a timedelta
object. You can use timedelta
objects to directly add and subtract to other datetime
and get a datetime
object result.
datatime.datetime.now()
yields a datetime
object
- If
treehouse_start
is adatetime
object,time_worked
will be atimedelta
object. - If
treehouse_start
is atimedelta
object,time_worked
will be adatetime
object.
So the dir()
is returning the attributes of the datetime
object.