> Single scalar constructor should Vector2(1) == Vector2(1, 1) This is the kind of situation where I'd follow PEP20: "In the face of ambiguity, refuse the temptation to guess." There's an obvious pitfall if you expected to pass a tuple and you instead pass a scalar or the wrong length tuple - it silently succeeds but constructs the wrong Vector. Perhaps raise a TypeError?
> Lower dimensional to higher dimension contructors should work: > Vector3(1, Vector2(2, 3)) == Vector3(1, 2, 3) We don't need this because we have star args: Vector3(1, *Vector2(2, 3))
