Why does datetime.timedelta only have the attributes 'days' and 'seconds'?

[Paul Bryan]

I think because minutes and hours can easily be composed by multiplying
seconds. days is separate because you cannot compose days from seconds;
leap seconds are applied to days at various times, due to
irregularities in the Earth's rotation.

On Thu, 2022-04-14 at 15:38 +0200, Loris Bennett wrote:
> "Loris Bennett" <loris.bennett at fu-berlin.de> writes:
> 
> > Hi,
> > 
> > With Python 3.9.2 I get
> > 
> >   $ import datetime
> >   $ s = "1-00:01:01"
> >   $ t = datetime.datetime.strptime(s, "%d-%H:%M:%S")
> >   $ d = datetime.timedelta(days=t.day, hours=t.hour,
> > minutes=t.minute, seconds=t.second)
> >   $ d.days
> >   1
> >   $ d.seconds
> >   61
> >   $ d.minutes
> >   AttributeError: 'datetime.timedelta' object has no attribute
> > 'minutes'
> > 
> > Is there a particular reason why there are no attributes 'minutes'
> > and
> > 'hours and the attribute 'seconds' encompasses is the entire
> > fractional
> > day?
> 
> That should read:
> 
>   Is there a particular reason why there are no attributes 'minutes'
> and
>   'hours' and the attribute 'seconds' encompasses the entire
> fractional
>   day?
> 
> > Cheers,
> > 
> > Loris
> -- 
> Dr. Loris Bennett (Herr/Mr)
> ZEDAT, Freie Universität Berlin         Email
> loris.bennett at fu-berlin.de