>>> from separate import separate

>>> ln1 = [5.65, 3.35, 9.54, 6.25, 2.5, 0.0, 1.5, 2.1]
>>> li1, ld1 = separate(ln1, 0.0)
>>> li1 == [2, 3, 5, 6, 9] and ld1 == [0.25, 0.35, 0.5, 0.54, 0.65]
True

>>> ln1 = [5.65, 3.35, 9.54, 6.25]
>>> li1, ld1 = separate(ln1, 0.0)
>>> li1 == [3, 5, 6, 9] and ld1 == [0.25, 0.35, 0.54, 0.65]
True