I gave the opening keynote at PyCon CA and then gave the same talk at PyData NYC on the various interpreters of Python (Jupyter notebook of my presentation can be found at bit.ly/pycon-ca-keynote; no video yet). I figured people here might find the benchmark numbers interesting so I'm sharing the link here.

I'm still hoping someday speed.python.org becomes a thing so I never have to spend so much time benchmarking so may Python implementations ever again and this sort of thing is just part of what we do to keep the implementation ecosystem healthy.