使用变量作为列表上的索引

Question

I have two lists:

List1 = [1, 3, 6, 8, 1, 61, 89, ...]  # This is how List1 is declared
List2[1][3][6][8][1][61][89][...]  # This is how I want to access data from List2

List1 is a one one-dimensional list with undefined size (can have 1, 2 or infinite items)

List2 is a multi-dimensional (nested) list (can be 2d or 3d or infinite)

I wanted to use the lists like this List2[List1[0]][List1[1]][List1[...]] ; I want to access the data in List2 using the data from List1 .

I tried the following but I got an error

 len(List2[List1])

How can I access List2 's data by using the indexes in List1 ?

Answer 1

len(List2[List1]) : You are trying to index a List2 using List1 while indexing in lists is done using integers.

Try: len(List2[List1[0]])