After all it will still be Python. Khan Academy rationale might be false, as the transition path might be easy from Python 2 to Python 3. But in the end they

After all it will still be Python. Khan Academy rationale might be false, as the transition path might be easy from Python 2 to Python 3. But in the end they will have the same stack as before and that's what they clearly try to avoid. Given that it makes sense to transition from a dynamically typed language to a statically typed which offers more compiler feedback.