Actually, that's a point. If its' the 31st of Jan, then +1 monthdelta will be 28 Feb and another +1 will be 28 March whereas 31st Jan +2 monthdeltas will be 31 March.
That's the kind of thing which really needs to be documented, or I think people really will make mistakes. For example, should a monthdelta include a goal-day so that the example above would go 31 Jan / 28 Feb / 31 March? -T On Fri, Apr 17, 2009 at 11:55 AM, Greg Ewing <greg.ew...@canterbury.ac.nz>wrote: > Jess Austin wrote: > > This is a perceptive observation: in the absence of parentheses to >> dictate a different order of operations, the third quantity will >> differ from the second. >> > > Another aspect of this is the use case mentioned right > at the beginning of this discussion concerning a recurring > event on a particular day of the month. > > If you do this the naive way by just repeatedly adding one > of these monthdeltas to the previous date, and the date is > near the end of the month, it will eventually end up > drifting to the 28th of every month. > > -- > Greg > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > http://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > http://mail.python.org/mailman/options/python-dev/tleeuwenburg%40gmail.com > -- -------------------------------------------------- Tennessee Leeuwenburg http://myownhat.blogspot.com/ "Don't believe everything you think"
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