title: Fastest way to count list values below a threshold
body: <p>Is there list method equivalent to numpy.count_nonzero(lst &lt; t)?
  when I use it on list (lst &lt; t) just returns True instead of list of booleans.
  I want to count list values below some threshold
  what is better - converting to numpy-array, using sort, some kind of list/generator comprehension or something else?</p>