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{
stdenv,
lib,
buildPythonPackage,
fetchPypi,
# build-system
cython,
gfortran,
numpy,
scipy,
setuptools,
wheel,
# native dependencies
glibcLocales,
llvmPackages,
pytestCheckHook,
pythonRelaxDepsHook,
pytest-xdist,
pillow,
joblib,
threadpoolctl,
pythonOlder,
}:
buildPythonPackage rec {
pname = "scikit-learn";
version = "1.4.2";
pyproject = true;
disabled = pythonOlder "3.9";
src = fetchPypi {
inherit pname version;
hash = "sha256-2qHEcdlbrQgMbkS0lGyTkKSEKtwwglcsIOT4iE456Vk=";
};
# Avoid build-system requirements causing failure
prePatch = ''
substituteInPlace pyproject.toml \
--replace-fail "numpy==2.0.0rc1" "numpy"
'';
buildInputs = [
numpy.blas
pillow
glibcLocales
] ++ lib.optionals stdenv.cc.isClang [ llvmPackages.openmp ];
nativeBuildInputs = [
gfortran
pythonRelaxDepsHook
];
build-system = [
cython
numpy
scipy
setuptools
wheel
];
dependencies = [
joblib
numpy
scipy
threadpoolctl
];
nativeCheckInputs = [
pytestCheckHook
pytest-xdist
];
env.LC_ALL = "en_US.UTF-8";
preBuild = ''
export SKLEARN_BUILD_PARALLEL=$NIX_BUILD_CORES
'';
# PermissionError: [Errno 1] Operation not permitted: '/nix/nix-installer'
doCheck = !stdenv.isDarwin;
disabledTests = [
# Skip test_feature_importance_regression - does web fetch
"test_feature_importance_regression"
];
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}"))}'"
];
preCheck = ''
cd $TMPDIR
export HOME=$TMPDIR
export OMP_NUM_THREADS=1
'';
pythonImportsCheck = [ "sklearn" ];
meta = with lib; {
description = "Set of python modules for machine learning and data mining";
changelog =
let
major = versions.major version;
minor = versions.minor version;
dashVer = replaceStrings [ "." ] [ "-" ] 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 ];
};
}
|
