Source: pytest-mpi Followup-For: Bug #993691 Yeah, there's something right weird going on here. I can't reproduce locally.
The error itself is an error. It shouldn't be trying to build a wheel for mpi4py in the first place. That implies it's downloading mpi4py source and rebuilding, the error happens because the build tools are not installed in the debci instance. In testing previously it never tried to "rebuild" mpi4py like this. It's supposed to be using the python3-mpi4py package, which is installed. I'm stumped. Maybe it will wash out with the openmpi updates currently in train. Drew
