gist for https://www.v2ex.com/t/796730

continuous_sum.py

def continuous_sum(lst):
    if len(lst) <= 1:
        return lst
    total = 0
    results = []
    for i in lst:
        if i == 0:
            continue
        if i > 0:
            if total >= 0:
                total += i
            else:
                results.append(total)
                total = i
        if i < 0:
            if total <= 0:
                total += i
            else:
                results.append(total)
                total = i
    results.append(total)
    return results