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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=6
PYTHON_COMPAT=( python3_6 )
inherit distutils-r1 flag-o-matic
MYPN="${PN/scikits_/scikit-}"
MYP="${MYPN}-${PV}"
DESCRIPTION="Python modules for machine learning and data mining"
HOMEPAGE="https://scikit-learn.org"
SRC_URI="mirror://pypi/${MYPN:0:1}/${MYPN}/${MYP}.tar.gz"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="examples test"
RESTRICT="!test? ( test )"
# tried to unbundle virtual/python-funcsigs, funcsigs, odict
# but it is a large mess to maintain
RDEPEND="
dev-python/matplotlib[${PYTHON_USEDEP}]
dev-python/nose[${PYTHON_USEDEP}]
dev-python/numpy[lapack,${PYTHON_USEDEP}]
sci-libs/scikits[${PYTHON_USEDEP}]
sci-libs/scipy[${PYTHON_USEDEP}]
virtual/blas:=
virtual/cblas:=
"
DEPEND="
dev-python/cython[${PYTHON_USEDEP}]
dev-python/numpy[lapack,${PYTHON_USEDEP}]
dev-python/setuptools[${PYTHON_USEDEP}]
sci-libs/scipy[${PYTHON_USEDEP}]
virtual/blas:=
virtual/cblas:=
"
S="${WORKDIR}/${MYP}"
PATCHES=( "${FILESDIR}"/${PN}-0.18.1-system-cblas.patch
"${FILESDIR}"/${PN}-0.20.2-fix-cdfast.patch )
python_prepare_all() {
# bug #397605
[[ ${CHOST} == *-darwin* ]] \
&& append-ldflags -bundle "-undefined dynamic_lookup" \
|| append-ldflags -shared
# scikits-learn now uses the horrible numpy.distutils automagic
export SCIPY_FCONFIG="config_fc --noopt --noarch"
# remove bundled cblas
rm -rf sklearn/src || die "failed to remove bundled cblas"
# commented out, since it is a mess to maintain
# use system joblib
#rm -r sklearn/externals/joblib || die
#sed -i -e '/joblib/d' sklearn/externals/setup.py || die
#for f in sklearn/{*/,}*.py; do
# sed -r -e '/^from/s/(sklearn|\.|)\.externals\.joblib/joblib/' \
# -e 's/from (sklearn|\.|)\.externals import/import/' -i $f || die
#done
# use system funcsigs and odict
#rm sklearn/externals/funcsigs.py || die
#rm sklearn/externals/odict.py || die
#for f in sklearn/{utils/fixes.py,gaussian_process/{tests/test_,}kernels.py}; do
# sed -r -e 's/from (sklearn|\.|)\.externals\.funcsigs/from funcsigs/' -i $f || die
#done
distutils-r1_python_prepare_all
}
python_compile() {
distutils-r1_python_compile ${SCIPY_FCONFIG}
}
python_test() {
# doc builds and runs tests
use doc && return
distutils_install_for_testing ${SCIPY_FCONFIG}
esetup.py install \
--root="${T}/test-${EPYTHON}" \
--no-compile ${SCIPY_FCONFIG}
pushd "${T}/test-${EPYTHON}/$(python_get_sitedir)" || die > /dev/null
JOBLIB_MULTIPROCESSING=2 SKLEARN_SKIP_NETWORK_TESTS=1 nosetests -v sklearn --exe || die
popd > /dev/null
}
python_install() {
distutils-r1_python_install ${SCIPY_FCONFIG}
}
python_install_all() {
find "${S}" -name \*LICENSE.txt -delete
distutils-r1_python_install_all
if use examples; then
dodoc -r examples
docompress -x /usr/share/doc/${PF}/examples
fi
}