nixpkgs/pkgs/development/python-modules/h5py/default.nix

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{ stdenv, fetchPypi, fetchpatch, python, buildPythonPackage
, numpy, hdf5, cython, six, pkgconfig
, mpi4py ? null, openssh }:
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assert hdf5.mpiSupport -> mpi4py != null && hdf5.mpi == mpi4py.mpi;
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with stdenv.lib;
let
mpi = hdf5.mpi;
mpiSupport = hdf5.mpiSupport;
in buildPythonPackage rec {
version = "2.7.1";
pname = "h5py";
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src = fetchPypi {
inherit pname version;
sha256 = "180a688311e826ff6ae6d3bda9b5c292b90b28787525ddfcb10a29d5ddcae2cc";
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};
configure_flags = "--hdf5=${hdf5}" + optionalString mpiSupport " --mpi";
postConfigure = ''
${python.executable} setup.py configure ${configure_flags}
# Needed to run the tests reliably. See:
# https://bitbucket.org/mpi4py/mpi4py/issues/87/multiple-test-errors-with-openmpi-30
${optionalString mpiSupport "export OMPI_MCA_rmaps_base_oversubscribe=yes"}
'';
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preBuild = if mpiSupport then "export CC=${mpi}/bin/mpicc" else "";
nativeBuildInputs = [ pkgconfig ];
buildInputs = [ hdf5 cython ]
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++ optional mpiSupport mpi;
propagatedBuildInputs = [ numpy six]
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++ optionals mpiSupport [ mpi4py openssh ];
patches = [
# Patch is based on upstream patch. The tox.ini hunk had to be removed.
# https://github.com/h5py/h5py/commit/5009e062a6f7d4e074cab0fcb42a780ac2b1d7d4.patch
./numpy-1.14.patch
];
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meta = {
description =
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"Pythonic interface to the HDF5 binary data format";
homepage = http://www.h5py.org/;
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license = stdenv.lib.licenses.bsd2;
};
}