How would you rearrange a text file containing lists by the length of lists

Question

for example if i had a text file which contains:

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

to:

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

Answer 1

data = [[1, 2, 3, 4, 5], [6, 7, 8], [3, 5, 8, 2]]

sorted(data, key=lambda x : len(x))

Result with:

[[6, 7, 8], [3, 5, 8, 2], [1, 2, 3, 4, 5]]