Message 71648 - Python tracker

> If Filename has no parent class but is convertible to bytes(), os
> functions requires no change and so we can fix it before final 3.0 ;-)

This sounds highly optimistic.

Also, I think it's wrong to introduce a string-like class with implicit
conversion both to bytes and to str, while we have taken all measures to
make sure that bytes/str exchangeability doesn't exist any more in py3k.