Yes, I have and it was simple but with plenty of footguns for developers who had not groked how you were supposed to work with strings. I am happy we moved away

Yes, I have and it was simple but with plenty of footguns for developers who had not groked how you were supposed to work with strings. I am happy we moved away from that but I am not happy with the solution Python 3 picked. I think e.g. Ruby 1.9 came up with a nicer solution to the problem and one which broke much less code.