[Python-ideas] [Python-ideos] Dedicated overloadable boolean operators

[Chris Barker - NOAA Federal]

> What does it _matter_ that you get True (or 1, etc) instead of
> [True, True, True, True, True, True]?

Sometimes you want to know that everything in an array is True ( which
is common enough that numpy.alltrue() exists)

But other times you want to know which items in an array a true, and
which are not -- most often to use as a Boolean mask -- in which case,
an array that happens to have all true values is a different beast
altogether from a single True. And remember that thee could be arrays
of any number of dimensions.

Also: Python Truthyness rules define an empty container as False, and
any non-empty container as True -- it's probably better not to make
arrays unique in that regard.

-CHB






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