I'm not expecting a change either, I was also just documenting observed breakages.  Given that I've ported a *ton* of code to 3.5 and only seen a handful of failures related to this issue, I agree that it's better just to provide information and let packages fix their code.

I am keeping a running document of such issues here: https://wiki.python.org/moin/PortingToPy3k/34to35

As for the larger question of doctests, we can discuss elsewhere.  Probably not appropriate for *this* issue <wink>.