I didn’t, because I pulled an Antoine and enjoyed weather, people and Florence. :)

I understand it’s okay to apply this towards 3.2 & 3.3 (with the proposed fixes)?

2.7 is not necessary because this problem doesn’t exist there:

> os.path.join(b'foo', u'bar')
u'foo/bar'

Introducing explicit sanity checks there would cause people wanting to eat our hearts. :)