Hello, I'm the author of psutil and I received 2 bug reports complaining about lack of PyModule_GetState: https://github.com/giampaolo/psutil/issues/853 https://github.com/giampaolo/psutil/issues/1045 There is also a ticket for pypy: https://bitbucket.org/pypy/pypy/issues/2450/cant-import-psutil-on-pypy3-miss... Since it seems this is not going to be fixed any time soon I'm curios: does this mean C extension modules cannot be compiled with pypy3? Are there alternatives to PyModule_GetState() which could be used? Thanks in advance. -- Giampaolo - http://grodola.blogspot.com