I don't know how up-to-date it is, but there's this list of libraries and packages:

https://bitbucket.org/pypy/compatibility/wiki/Home

I'm mostly missing Qt GUI support myself. Hopefully cppyy (http://doc.pypy.org/en/latest/cppyy.html) matures, as then it will be possible to use C++ libraries automatically without none or very little binding work.