[Python-Dev] dateutil
Aahz
aahz at pythoncraft.com
Mon Mar 15 19:28:05 EST 2004
On Tue, Mar 16, 2004, Greg Ewing wrote:
> Gustavo Niemeyer <niemeyer at conectiva.com>:
>>
>> (just as examples)
>>
>> d + relativedelta(day=1)
>> d + relativedelta(day=31)
>
> Sorry, but the more I see of this usage the worse it looks. Here
> you're effectively using '+' as an assignment operator. To me, that's
> a gross abuse of the Python language.
Part of the problem is that relativedelta does need to be a single
complex object. Consider
today() + relativedelta(month=1, dayofweek=FRIDAY)
contrasted with
today() + relativedelta(weeks=4, dayofweek=FRIDAY)
Humans use complex relative date constructs, and many of them depend on
whatever the base time is; in order to do the adjustment correctly, you
need to provide a single change construct.
--
Aahz (aahz at pythoncraft.com) <*> http://www.pythoncraft.com/
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