How come string.maketrans does not work in Python 3.1?

Question

I\'m a Python newbie.

How come this doesn\'t work in Python 3.1?

from string import maketrans   # Required to call maketrans function.

intab = \"aei         


        

Answer 1

"this is string example....wow!!!".translate(str.maketrans("aeiou","12345"))

This works, and no additional byte transformation. I don't know the reason why to use byte instead of str.