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

[Lars Liedtke]

Additionally, which datatype would you expect them to be returned in?

One could argument for int or float (Decimal?),  both could be valid 
datatypes, depending on how exact you might want them, while the second 
is the time base of SI units.

Cheers
Lars


-- 
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Am 14.04.22 um 17:01 schrieb 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