{ lib, buildPythonPackage, fetchFromGitHub, cython, setuptools, mpi, toPythonModule, pytestCheckHook, mpiCheckPhaseHook, }: buildPythonPackage rec { pname = "mpi4py"; version = "4.1.0"; pyproject = true; src = fetchFromGitHub { repo = "mpi4py"; owner = "mpi4py"; tag = version; hash = "sha256-Hm+x79utOrjAbprud2MECgakyOzgShSwNuoyZUcTluQ="; }; build-system = [ cython setuptools ]; nativeBuildInputs = [ mpi ]; dependencies = [ # Use toPythonModule so that also the mpi executables will be propagated to # generated Python environment. (toPythonModule mpi) ]; pythonImportsCheck = [ "mpi4py" ]; nativeCheckInputs = [ pytestCheckHook mpiCheckPhaseHook ]; disabledTestPaths = lib.optionals (mpi.pname == "mpich") [ # These tests from some reason cause pytest to crash, and therefor it is # hard to debug them. Upstream mentions these tests to raise issues in # https://github.com/mpi4py/mpi4py/issues/418 but the workaround suggested # there (setting MPI4PY_RC_RECV_MPROBE=0) doesn't work. "test/test_util_pool.py" "demo/futures/test_futures.py" ]; __darwinAllowLocalNetworking = true; # skip spawn related tests for openmpi implemention # see https://github.com/mpi4py/mpi4py/issues/545#issuecomment-2343011460 env.MPI4PY_TEST_SPAWN = if mpi.pname == "openmpi" then 0 else 1; passthru = { inherit mpi; }; meta = { description = "Python bindings for the Message Passing Interface standard"; homepage = "https://github.com/mpi4py/mpi4py"; changelog = "https://github.com/mpi4py/mpi4py/blob/${src.tag}/CHANGES.rst"; license = lib.licenses.bsd2; maintainers = with lib.maintainers; [ doronbehar ]; }; }