On 02.04.2014 15:04, Skip Montanaro wrote:
> On Wed, Apr 2, 2014 at 7:52 AM, M.-A. Lemburg wrote:
> print now() + RelativeDateTime(months=+1, day=1)
>> 2014-05-01 14:49:05.83
>
> I find this sort date arithmetic unintuitive, though I'm at a loss to
> come up with better logic than you have:
>
On 2014-04-02, at 15:04 , Skip Montanaro wrote:
> On Wed, Apr 2, 2014 at 7:52 AM, M.-A. Lemburg wrote:
> print now() + RelativeDateTime(months=+1, day=1)
>> 2014-05-01 14:49:05.83
>
> I find this sort date arithmetic unintuitive, though I'm at a loss to
> come up with better logic than you
On Wed, Apr 2, 2014 at 7:52 AM, M.-A. Lemburg wrote:
> >>> print now() + RelativeDateTime(months=+1, day=1)
> 2014-05-01 14:49:05.83
I find this sort date arithmetic unintuitive, though I'm at a loss to
come up with better logic than you have:
>>> d = Date(2014, 2, 28)
>>> d + RelativeDateTime(m
n 31.03.2014 21:09, Chris Barker wrote:
> On Fri, Mar 28, 2014 at 2:52 PM, Fred Drake wrote:
>
>> On Fri, Mar 28, 2014 at 5:19 PM, Greg Ewing
>> wrote:
>>> ISO 8601 doesn't seem to define a representation for
>>> negative durations, though, so it wouldn't solve the
>>> original problem.
>>
>> As
On 2014-03-28, at 17:19 , Skip Montanaro wrote:
> (*) As an aside (that is, this belongs in a separate thread if you
> want to discuss it), in my opinion, attempting to support ISO 8601
> formatting is pointless without the presence of an anchor datetime.
> Otherwise how would you know how far bac
On Fri, Mar 28, 2014 at 2:52 PM, Fred Drake wrote:
> On Fri, Mar 28, 2014 at 5:19 PM, Greg Ewing
> wrote:
> > ISO 8601 doesn't seem to define a representation for
> > negative durations, though, so it wouldn't solve the
> > original problem.
>
> Aside from the horribleness of the ISO 8601 notati
Greg Ewing :
> ISO 8601 doesn't seem to define a representation for
> negative durations, though, so it wouldn't solve the
> original problem.
XSD uses ISO 8601 durations and allows a sign before the initial "P".
It would appear PT1M means 60 or 61 seconds. P1D means 23, 24 or 25
hours. P1M mean
On Fri, Mar 28, 2014 at 5:19 PM, Greg Ewing wrote:
> ISO 8601 doesn't seem to define a representation for
> negative durations, though, so it wouldn't solve the
> original problem.
Aside from the horribleness of the ISO 8601 notation for a duration, it's
best not to confuse the notions of duratio
Alexander Belopolsky wrote:
I meant ISO 8601 syntax for "durations" [1].
ISO 8601 doesn't seem to define a representation for
negative durations, though, so it wouldn't solve the
original problem.
--
Greg
___
Python-Dev mailing list
Python-Dev@python
On Fri, Mar 28, 2014 at 11:07 AM, Alexander Belopolsky
wrote:
>> Is it open to debate or is it now cast in stone?
>
> I think the barrier for changing str() is lower than that for changing
> repr(), but I would be against any changes in this area. (I may have had a
> different view if ISO 8601 sy
On Fri, 28 Mar 2014 11:19:52 -0500
Skip Montanaro wrote:
> On Fri, Mar 28, 2014 at 11:07 AM, Alexander Belopolsky
> wrote:
> >> Is it open to debate or is it now cast in stone?
> >
> > I think the barrier for changing str() is lower than that for changing
> > repr(), but I would be against any ch
On Fri, Mar 28, 2014 at 12:19 PM, Skip Montanaro wrote:
> (*) As an aside (that is, this belongs in a separate thread if you
> want to discuss it), in my opinion, attempting to support ISO 8601
> formatting is pointless without the presence of an anchor datetime.
>
I meant ISO 8601 syntax for "d
On Fri, Mar 28, 2014 at 7:03 AM, Steven D'Aprano
wrote:
> py> str(timedelta(0, -1))
> '-1 day, 23:59:59'
> ..
> Does anyone remember the rationale for this behaviour?
I don't recall any better rationale than what I wrote in the docs: "String
representations of timedelta objects are normalized si
There's a furious discussion going on at the python-list mailing list,
about negative timedelta strings:
py> str(timedelta(0, -1))
'-1 day, 23:59:59'
This is documented. It's even documented as being "somewhat unusual". I
found a tracker item for it, back in July 2010:
http://bugs.python.org/
14 matches
Mail list logo
