convenience

[Greg Ewing]

On 23/03/22 7:00 am, Avi Gross wrote:
> But are there costs or even errors
> if you approach an inner part of an object directly? Can there be dunder methods not
> invoked that would be from the standard approach? What kind of inadvertent
> errors can creep in?

The attribute could be a property that returns different objects
at different times depending on some condition. In that case
you will need to think about whether you want the current value
of the attribute, or the value it had when you looked it up
before.

Concerning dunder methods, there are a bunch of them involved in
looking up an attribute of an object. Theoretically it's possible
for these to have side effects and for bad things to happen if you
skip them. But that would be very unusual and surprising, and we
generally assume such things don't happen.

-- 
Greg