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

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{ stdenv
, buildPythonPackage
, pkgs
, numpy
, scipy
, enum34
, protobuf
, pip
, python
}:
buildPythonPackage rec {
inherit (pkgs.cntk) name version src meta;
buildInputs = [ pkgs.cntk pkgs.swig pkgs.openmpi ];
propagatedBuildInputs = [ numpy scipy enum34 protobuf pip ];
CNTK_LIB_PATH = "${pkgs.cntk}/lib";
CNTK_COMPONENT_VERSION = pkgs.cntk.version;
postPatch = ''
cd bindings/python
sed -i 's,"libmpi.so.12","${pkgs.openmpi}/lib/libmpi.so",g' cntk/train/distributed.py
'';
postInstall = ''
rm -rf $out/${python.sitePackages}/cntk/libs
ln -s ${pkgs.cntk}/lib $out/${python.sitePackages}/cntk/libs
# It's not installed for some reason.
cp cntk/cntk_py.py $out/${python.sitePackages}/cntk
'';
# Actual tests are broken.
checkPhase = ''
cd $NIX_BUILD_TOP
${python.interpreter} -c "import cntk"
'';
}