Max Consecutive Sum

large_sum

def large_sum(el):
    class _helper:
        large_pos = len(el)
        current_pos = len(el)
        large = []
        current = []
    h = _helper()
    def _large_sum(_el, pos):
        if pos == len(_el) - 1:
            h.large_pos -= 1
            h.current_pos -= 1
            if _el[pos] < 0:
                return 0
            else:
                h.current = h.large = [_el[pos]]
                return _el[pos]
        csum = _large_sum(_el, pos + 1) + _el[pos]
        if csum > 0:
            if csum > sum(h.large):
                h.large = h.current = [_el[pos]] + h.current
                h.current_pos -= 1
                h.large_pos = h.current_pos
            else:
                h.current = [_el[pos]] + h.current
                h.current_pos -= 1
            return csum
        else:
            h.current = []
            h.current_pos -= 1
            return 0
    _large_sum(el, 0)
    print h.large

large_sum([-1, 5, 6, -2, 20, -50, 4])