CODEWITHSUNDEEP
python-3.xdatetime
newcomer
newcomer

Reputation: 3

datetime - a bug or a feature?

from datetime import datetime, timedelta
now = datetime.now()
then = datetime(2001, 1, 1)
delta = now-then
print(delta)
print(delta.days, delta.seconds)
print(delta.hours, delta.minutes)

gives the following errors:

6959 days, 16:09:27.863408

6959 58167

AttributeError: 'datetime.timedelta' object has no attribute 'hours'

AttributeError: 'datetime.timedelta' object has no attribute 'minutes'

is it a bug or a feature?

Upvotes: 0

Views: 225

Answers (2)

9000
9000

Reputation: 40884

A feature: timedelta objects only have .days, .seconds, and .microseconds.

I suppose this is because days are sometimes irregular (e.g. due to leap seconds, and date arithmetic can account for that), while minutes and hours can be readily computed from seconds. Could have been slightly nicer, but still would have a few corner cases.

Upvotes: 1

Sergey
Sergey

Reputation: 532

You can check all attributes in this way:

>>> dir(delta)
['__abs__', '__add__', '__bool__', '__class__', '__delattr__', '__dir__', '__divmod__', '__doc__', '__eq__', '__floordiv__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__mod__', '__mul__', '__ne__', '__neg__', '__new__', '__pos__', '__radd__', '__rdivmod__', '__reduce__', '__reduce_ex__', '__repr__', '__rfloordiv__', '__rmod__', '__rmul__', '__rsub__', '__rtruediv__', '__setattr__', '__sizeof__', '__str__', '__sub__', '__subclasshook__', '__truediv__', 'days', 'max', 'microseconds', 'min', 'resolution', 'seconds', 'total_seconds']

There are no "hours" and "minutes"

Upvotes: 0

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