python 列表分組方法

def page(li, num):
    """
    :param li: 需要分頁的列表
    :param num: 每一頁頁碼數量
    :return: 分頁后列表
    需要導入math模塊
    """
    zu = math.ceil(len(li)/num)
    new_list = []
    n = 0
    while True:
        if n == (zu - 1):
            new_list.append(li3[n:])
            break
        page = li3[n:(n + num)]
        del li3[0:(num-1)]
        new_list.append(page)
        n += 1
    return new_list

list = [1,2,3,3,3,4,5,5,3,4,3,1,2,4,5,6,78,5,67,8,6,5,4,3,2,5,7,9,2,4]
new_list  = page(list, 7)
print(new_list)
# 輸出   [[1, 2, 3, 3, 3, 4, 5], [5, 3, 4, 3, 1, 2, 4], [5, 6, 78, 5, 67, 8, 6], [5, 4, 3, 2, 5, 7, 9], [2, 4]]