如何将 function 应用于列表中的每组三个？

Question

The list is 2, 4, 5, 1, 2, 3, 3, 5, 1 How would I get the output to be

2,4,5

1,2,3

3,5,1

And then be able to apply a function to each of these three lists?

Answer 1

its simple

mylist = [2, 4, 5, 1, 2, 3, 3, 5, 1]
subset_len = 3
print([mylist[subset_len*i:subset_len*(i+1)] for i in range(len(mylist)//subset_len)])

Answer 2

You can try with this:

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

elements_for_list = 3

splitted_data = [data[i: i+elements_for_list] for i in range(0, len(data), elements_for_list)]

for values in splitted_data:
    # apply the sum function on each list
    print(sum(values))