Why does the attached code gives none when when print(letters.reverse()) is interpreted.

Question

https://code.sololearn.com/cQ6FqXQyAhGf/?ref=app

Answer 1

letters.reverse() has no return value so there is nothing to print. The reversing is done in place so the original list is reversed and no new list is created.

Answer 2

Try this:

List = [1, 2, 3, 4]
List.reverse()
print(List)