[Python-Dev] dateutil (original) (raw)

Gustavo Niemeyer niemeyer at conectiva.com
Tue Mar 16 09:26:42 EST 2004

I don't know. The problem here is that it is not obvious what is going to happen. Consider:

d1 = date(2004, 1, 31) d2 = date(2004, 1, 28) d11 = d1 + relativedelta(months=1) d21 = d2 + relativedelta(months=1)

It's obvious to me, and should be obvious to anyone who knows the behavior of this class. They'll land on Feb/29 and Feb/28, respectively.

If you subscribe to d11 == d21, what do you expect to be the result of:

Why would I 'subscribe' to that?

d11 + relativedelta(months=1) d21 + relativedelta(months=1)

Whatever you choose it will be seriously inconsistent from one point of view or another.

They'll land on Mar/29 and Mar/28? Where's the incosistency!?

-- Gustavo Niemeyer http://niemeyer.net

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