Python-提取最里面的列表

假设没有像这样的“混合”列表，这似乎可行

[1,2,[3]]

def get_inner(nested):    if all(type(x) == list for x in nested):        for x in nested: for y in get_inner(x):     yield y    else:        yield nested

输出

list(get_inner(nested_list))

[[1, 3, 4, 5], [1, 3, 8], [1, 7, 8], [6, 7, 8], [9]]

甚至更短，没有生成器，

sum

def get_inner(nested):    if all(type(x) == list for x in nested):        return sum(map(get_inner, nested), [])    return [nested]