PyPy finally got $200K of funding, from Mozilla.[1] They're going to support Python 3.5. PyPy ought to be able to use a version of NumPy written in Python. If someone can pound Python's little tin god into making Python's new type annotations have sane semantics (as in enforcing the typing), then NumPy in Python could come up to NumPy speed.

The amount of C code used with Python declined somewhat with Python 3, because the C interface changed and things had to be reimplemented. There's pymysql, for example, which is a database connector in pure Python. No more need for the C version.

[1] https://morepypy.blogspot.com/2016/08/pypy-gets-funding-from...