nixpkgs/pkgs/development/python-modules/mpi4py/default.nix
2019-04-08 12:56:21 +02:00

53 lines
1.5 KiB
Nix

{ stdenv, fetchPypi, fetchpatch, python, buildPythonPackage, mpi, openssh }:
buildPythonPackage rec {
pname = "mpi4py";
version = "3.0.1";
src = fetchPypi {
inherit pname version;
sha256 = "0ld8rjmsjr0dklvj2g1gr3ax32sdq0xjxyh0cspknc1i36waajb5";
};
passthru = {
inherit mpi;
};
postPatch = ''
substituteInPlace test/test_spawn.py --replace \
"unittest.skipMPI('openmpi(<3.0.0)')" \
"unittest.skipMPI('openmpi')"
'';
configurePhase = "";
installPhase = ''
mkdir -p "$out/lib/${python.libPrefix}/site-packages"
export PYTHONPATH="$out/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
${python}/bin/${python.executable} setup.py install \
--install-lib=$out/lib/${python.libPrefix}/site-packages \
--prefix="$out"
# --install-lib:
# sometimes packages specify where files should be installed outside the usual
# python lib prefix, we override that back so all infrastructure (setup hooks)
# work as expected
# Needed to run the tests reliably. See:
# https://bitbucket.org/mpi4py/mpi4py/issues/87/multiple-test-errors-with-openmpi-30
export OMPI_MCA_rmaps_base_oversubscribe=yes
'';
setupPyBuildFlags = ["--mpicc=${mpi}/bin/mpicc"];
nativeBuildInputs = [ mpi openssh ];
meta = {
description =
"Python bindings for the Message Passing Interface standard";
homepage = http://code.google.com/p/mpi4py/;
license = stdenv.lib.licenses.bsd3;
};
}