I know there is no current plan to implement scipy in pypy, but searching the PyPy website, I was not able to find the reason.
If
it is not to be included as a feature due to lack of interest or
developer time, I am offering to begin rewriting scipy in pure python (I have quite a bit of free time to do this).
If it has been discussed and actively excluded from pypy, I would like to know that before I waste too much time rewriting it.
I
have an active interest in being able to use some modules which depend
on scipy while using the PyPy interpreter (especially pyBrain). I have
seen the hack on the pypy blog:
http://morepypy.blogspot.com/2011/12/plotting-using-matplotlib-from-pypy.html
I
could simply use the hack myself, but unless there's a reason not too, I
think it'd be nice to have scipy available as a pure
python module (perhaps called scipypy in the same manner as numpy).
--
Steven Jackson