miniblog.

Wow, Pypy now supports numpy and pandas! https://morepypy.blogspot.co.uk/2017/03/pypy27-and-pypy35-v57-two-in-one-release.html (a major reason for using CPython previously)

"XXX The functional organization of this file is terrible" -- Bluntness in the CPython source code.

I'm *really* impressed with CPython's bigint performance. It's beating Julia, which uses GMP! (I imagine Julia will overtake in future.)