python: convert “5,4,2,4,1,0” into [[5, 4], [2, 4], [1, 0]]

Question

Is there a \"straightforward\" way to convert a str containing numbers into a list of [x,y] ints?

# from: \'5,4,2,4,1,0,3,0,5,1,3,3,14,32,3,5\'
# to: [[5, 4         


        

Answer 1

You can shorten the first part (converting "1,2,3" to [1, 2, 3]) by using the split function:

num_list = num_str.split(",")

There might be an easier way to get pairs, but I'd do something like this:

xy_pairs = []
for i in range(0, len(num_list), 2):
    x = num_list[i]
    y = num_list[i + 1]
    xy_pairs.append([x, y])

Also, since these are all lists of a defined length (2), you should probably use a tuple:

xy_pairs.append((x, y))