tjh.dev
1{ stdenv, fetchPypi, isPy27, python, buildPythonPackage
2, numpy, hdf5, cython, six, pkgconfig, unittest2
3, mpi4py ? null, openssh }:
4
5assert hdf5.mpiSupport -> mpi4py != null && hdf5.mpi == mpi4py.mpi;
6
7with stdenv.lib;
8
9let
10 mpi = hdf5.mpi;
11 mpiSupport = hdf5.mpiSupport;
12in buildPythonPackage rec {
13 version = "2.9.0";
14 pname = "h5py";
15
16 src = fetchPypi {
17 inherit pname version;
18 sha256 = "9d41ca62daf36d6b6515ab8765e4c8c4388ee18e2a665701fef2b41563821002";
19 };
20
21 configure_flags = "--hdf5=${hdf5}" + optionalString mpiSupport " --mpi";
22
23 postConfigure = ''
24 ${python.executable} setup.py configure ${configure_flags}
25
26 # Needed to run the tests reliably. See:
27 # https://bitbucket.org/mpi4py/mpi4py/issues/87/multiple-test-errors-with-openmpi-30
28 ${optionalString mpiSupport "export OMPI_MCA_rmaps_base_oversubscribe=yes"}
29 '';
30
31 preBuild = if mpiSupport then "export CC=${mpi}/bin/mpicc" else "";
32
33 checkInputs = optional isPy27 unittest2;
34 nativeBuildInputs = [ pkgconfig ];
35 buildInputs = [ hdf5 cython ]
36 ++ optional mpiSupport mpi;
37 propagatedBuildInputs = [ numpy six]
38 ++ optionals mpiSupport [ mpi4py openssh ];
39
40 meta = {
41 description =
42 "Pythonic interface to the HDF5 binary data format";
43 homepage = http://www.h5py.org/;
44 license = stdenv.lib.licenses.bsd2;
45 };
46}