for_some(), for_all()?
aurora
aurora00 at gmail.com
Wed Sep 22 12:57:21 EDT 2004
I am trying to test a list to see if some or all elements pass a test. For
example I can use reduce() to test if any element is 0.
>>> lst = [1,2,0,3]
>>> test = lambda x: x == 0
>>> reduce(operator.__or__,[test(x) for x in lst])
True
However I bet reduce() does not exploit the short circuit logic. Also it
is a little clumsy to create another list to pass into reduce. Is there
some equivalent of
for_some(test, lst)
or
for_all(test, lst)?
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