Easiest way to remove unicode representations from a string in python 3?

I have a string in python 3 that has several unicode representations in it, for example:

t = 'R\\u00f3is\\u00edn'

and I want to convert t so that it has the proper representation when I print it, ie:

>>> print(t)
Róisín

However I just get the original string back. I've tried re.sub and some others, but I can't seem to find a way that will change these characters without having to iterate over each one. What would be the easiest way to do so?