On 2006-05-02, John Salerno <[EMAIL PROTECTED]> wrote:
> Yeah, after trying some crazy things, I just wrote it this way:
>
> def truth_test(seq):
> truth = 0
> for item in seq:
> if item:
> truth += 1
> if truth == 1:
> return True
> else:
> return False
>
> Not sure I like having to keep a counter though, but the other stuff I
> did was really convoluted, like checking to see if the first item was
> True, and if it was, popping it from the list and iterating over the
> rest of the items (needless to say, the in-place change wasn't helpful).
Python knows how to count. :)
def countFalse(seq):
return len([v for v in seq if not v])
def countTrue(seq):
return len([v for v in seq if v])
def truth_test(seq):
return countTrue(seq) == 1
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at DISHES!!
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