Over 50% of the top 200 most downloaded packages on PyPI are python 3 compatible.
So http://python3wos.appspot.com/ has become the Python 3 Wall of Superpowers.
It took 4 years from the initial python 3.0 release.
No one expected 3.0 to be picked up as fast as any 2.X increment, though 4 years feels like a bit much to me.
Anyways, congratulations to us & python!