{ stdenv, fetchurl, python, buildPythonPackage , numpy, hdf5, cython , mpiSupport ? false, mpi4py ? null, mpi ? null }: assert mpiSupport == hdf5.mpiSupport; assert mpiSupport -> mpi != null && mpi4py != null && mpi == mpi4py.mpi && mpi == hdf5.mpi ; with stdenv.lib; buildPythonPackage rec { name = "h5py-2.3.1"; src = fetchurl { url = "https://pypi.python.org/packages/source/h/h5py/${name}.tar.gz"; md5 = "8f32f96d653e904d20f9f910c6d9dd91"; }; setupPyBuildFlags = [ "--hdf5=${hdf5}" ] ++ optional mpiSupport "--mpi" ; setupPyInstallFlags = setupPyBuildFlags; preBuild = if mpiSupport then "export CC=${mpi}/bin/mpicc" else ""; buildInputs = [ hdf5 cython ] ++ optional mpiSupport mpi ; propagatedBuildInputs = [ numpy ] ++ optional mpiSupport mpi4py ; meta = { description = "Pythonic interface to the HDF5 binary data format"; homepage = "http://www.h5py.org/"; license = stdenv.lib.licenses.bsd2; }; }