It’s the easiest one to fix, though. 2to3 does it easily. If it were the only change, we would not be having this conversation. It might have even not deserv

It’s the easiest one to fix, though. 2to3 does it easily. If it were the only change, we would not be having this conversation. It might have even not deserved a major version bump (given that even minor releases of Python don't conserve backwards compatibility).