depot/third_party/nixpkgs/pkgs/development/python-modules/scikit-learn/default.nix
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GitOrigin-RevId: 540dccb2aeaffa9dc69bfdc41c55abd7ccc6baa3
2021-05-28 11:39:13 +02:00

114 lines
2.7 KiB
Nix

{ stdenv
, lib
, buildPythonPackage
, fetchPypi
, fetchpatch
, gfortran
, glibcLocales
, numpy
, scipy
, pytestCheckHook
, pytest-xdist
, pillow
, cython
, joblib
, llvmPackages
, threadpoolctl
, pythonOlder
}:
buildPythonPackage rec {
pname = "scikit-learn";
version = "0.24.1";
disabled = pythonOlder "3.6";
src = fetchPypi {
inherit pname version;
sha256 = "oDNKGALmTWVgIsO/q1anP71r9LEpg0PzaIryFRgQu98=";
};
patches = [
# This patch fixes compatibility with numpy 1.20. It was merged before 0.24.1 was released,
# but for some reason was not included in the 0.24.1 release tarball.
(fetchpatch {
url = "https://github.com/scikit-learn/scikit-learn/commit/e7ef22c3ba2334cb3b476e95d7c083cf6b48ce56.patch";
sha256 = "174554k1pbf92bj7wgq0xjj16bkib32ailyhwavdxaknh4bd9nmv";
})
];
buildInputs = [
pillow
gfortran
glibcLocales
] ++ lib.optionals stdenv.cc.isClang [
llvmPackages.openmp
];
nativeBuildInputs = [
cython
];
propagatedBuildInputs = [
numpy
scipy
numpy.blas
joblib
threadpoolctl
];
checkInputs = [ pytestCheckHook pytest-xdist ];
LC_ALL="en_US.UTF-8";
preBuild = ''
export SKLEARN_BUILD_PARALLEL=$NIX_BUILD_CORES
'';
doCheck = !stdenv.isAarch64;
disabledTests = [
# Skip test_feature_importance_regression - does web fetch
"test_feature_importance_regression"
# failing on macos
"check_regressors_train"
"check_classifiers_train"
"xfail_ignored_in_check_estimator"
];
pytestFlagsArray = [
# verbose build outputs needed to debug hard-to-reproduce hydra failures
"-v"
"--pyargs" "sklearn"
# NuSVC memmap tests causes segmentation faults in certain environments
# (e.g. Hydra Darwin machines) related to a long-standing joblib issue
# (https://github.com/joblib/joblib/issues/563). See also:
# https://github.com/scikit-learn/scikit-learn/issues/17582
# Since we are overriding '-k' we need to include the 'disabledTests' from above manually.
"-k" "'not (NuSVC and memmap) ${toString (lib.forEach disabledTests (t: "and not ${t}"))}'"
"-n" "$NIX_BUILD_CORES"
];
preCheck = ''
cd $TMPDIR
export HOME=$TMPDIR
export OMP_NUM_THREADS=1
'';
pythonImportsCheck = [ "sklearn" ];
meta = with lib; {
description = "A set of python modules for machine learning and data mining";
changelog = let
major = versions.major version;
minor = versions.minor version;
dashVer = replaceChars ["."] ["-"] version;
in
"https://scikit-learn.org/stable/whats_new/v${major}.${minor}.html#version-${dashVer}";
homepage = "https://scikit-learn.org";
license = licenses.bsd3;
maintainers = with maintainers; [ davhau ];
};
}