Efficient Python to Python IPC [closed]
Native objects don't get shared between processes (due to reference counting).
Instead, you can pickle them and share them using unix domain sockets, mmap, zeromq, or an intermediary such a sqlite3 that is designed for concurrent accesses.
Both execnet and Pyro mention PyPy <-> CPython
communication. Other packages from Python Wiki's Parallel Processing page are probably suitable too.