The metakit.py file is a small wrapper around Mk4py, the compiled extension. It has always been available in the source release, at:
metakit-*/python/metakit.py
But I've just (May 2, 2001) made a copy of it for people who did not download the sources and just fetched a binary build:
https://www.equi4.com/pub/mk/metakit.py
Right now, "metakit.py" adds just a single function:
def dump(view, title=None): """pretty printer for MK views"""