[Python-Dev] Python-Dev Digest, Vol 69, Issue 143 (original) (raw)

Greg Ewing greg.ewing at canterbury.ac.nz
Fri Apr 17 03:55:58 CEST 2009

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

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