On Tue, 02 May 2006 17:15:05 GMT, rumours say that John Salerno
<[EMAIL PROTECTED]> might have written:
>Another thing I'm trying to do is write a function that tests to see if
>a list contains exactly one true item, and the rest are false (obviously
>this would have to be a list of boolean values, I guess). I'm sure this
>isn't a handy utility, but I enjoy figuring out how to implement it.
>>> def true_count_is(predicates, count):
return count == sum(map(bool, predicates))
>>> true_count_is([True, True, False], 1)
False
>>> true_count_is([True, False, False], 1)
True
--
TZOTZIOY, I speak England very best.
"Dear Paul,
please stop spamming us."
The Corinthians
--
http://mail.python.org/mailman/listinfo/python-list
