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

All I did to achieve a reverse string is use the xrange function with the length of the string in a for loop and step back per the following:

myString = "ABC"

for index in xrange(len(myString),-1):
    print index

My output is "CBA"