List insert at index that is well out of range - behaves like append

Question

I had a list

 a = [1, 2, 3]

when I did

a.insert(100, 100)

[1, 2, 3, 100]

as list was originally of siz

Answer 1

The documentation says:

L.insert(index, object) # insert object before index

So it seems when you try inserting at index 100 it will really get the existing index on the list before 100.