Reverse a string without using reversed() or [::-1]?

Question

I came across a strange Codecademy exercise that required a function that would take a string as input and return it in reverse order. The only problem was you could not use

Answer 1

i just solved this in code academy and was checking my answers and ran across this list. so with a very limited understanding of python i just did this and it seamed to work.

def reverse(s):
    i = len(s) - 1
    sNew = ''
    while  i >= 0:
        sNew = sNew + str(s[i])
        i = i -1
    return sNew