python 将一个列表分为多个列表 指定分成几个列表 指定列表元素个数

l = [1,2,3,4,5,8]

def split(a, n, list_num=0):
    '''
    
    :param a: list 
    :param n: split to n parts
    :param list_num: sub list elements count
    :return: 
    '''
    if list_num and len(a) > list_num:
        n = len(a) // list_num
        print('n', n)


    k, m = divmod(len(a), n)
    return (a[i*k+min(i, m):(i+1)*k+min(i+1, m)] for i in range(n))

l_split = split(l, 3, 10)
print(list(l_split))

print(len(l))
print(len(l) // 3)

l = [1,2,3,4,5]

def split(a, n):
    k, m = divmod(len(a), n)
    return (a[i*k+min(i, m):(i+1)*k+min(i+1, m)] for i in range(n))

l_split = split(l, 3)
print(list(l_split))

参考
https://stackoverflow.com/questions/2130016/splitting-a-list-into-n-parts-of-approximately-equal-length