any(), all() and empty iterable
python.list at tim.thechases.com
Thu Apr 16 20:27:25 CEST 2009
Raymond Hettinger wrote:
> I will not change the sentence to "return false if any element
> of the iterable is false." The negations make the sentence
> hard to parse mentally
Just as a ribbing, that "return X if any element of the iterable
is X" is of the same form as the original. The negation is only
of the X, not of the sentence structure.
> I will probably leave the lead-in sentence as-is but may
> add another sentence specifically covering the case for
> an empty iterable.
as one of the instigators in this thread, I'm +1 on this solution.
Changing the implementation of all() would break waaaay too much
stuff, so I'm -1 on that. Adding a one-sentence clarification to
the docs is a heckuva lot easier.
> P.S. Now maybe we can start a new thread about why sum()
> returns zero ;-)
NOOOOooooooo! (runs screaming) :-)
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