Move item from one 2D list cell to another specific cell in the same list

Question

So, say that I have a 2D list with these items:

foo = [[1,2,3][4,5,6]]

and I want to move foo[1][0] to foo[0][1] to make this output:

foo = [[1,4,2,3][5,6]]

How would I go about doing that?

Answer 1

you can simply do this

foo[0].insert(1,foo[1].pop(0))

Answer 2

• Use insert to insert an item into an array into a certain index
• Use pop to remove and return an item from a list at a certain index

Combine both

foo = [[1,2,3], [4,5,6]]
foo[0].insert(1, foo[1].pop(0))