ImportError: dynamic module does not define module export function (PyInit_MPI)

[Deepak Chandan]

After compiling from source, during usage I get a "ImportError: dynamic module does not define module export function (PyInit_MPI)" with this line "from mpi4py import MPI". Surprisingly, if I go to the site-packages directory then importing MPI does not raise the above error. This is quite bizarre and I don't know how to resolve this. What might be causing the problem and how can it be resolved? I am using Python 3.

[Lisandro Dalcin]

I guess you have an import path issue, and your Python 3 interpreter is picking a Python 2 mpi4py build.

What's the output of the following command?:

$ python3 -c "import mpi4py; print(mpi4py)"

Does the path correspond to your Python 3 site-packages directory?

[Lisandro Dalcin]

@dchandan Any news? Could you figure out what's going one?

[Lisandro Dalcin]

This does not look like an issue in mpi4py. As the OP did not replied back, I'm closing it as invalid.