dev-python/lightgbm: new package, add 4.5.0

Signed-off-by: Yiyang Wu <xgreenlandforwyy@gmail.com>

dev-python/lightgbm/Manifest

@@ -0,0 +1 @@
+DIST lightgbm-4.5.0.tar.gz 1701072 BLAKE2B 1323d27ad7f34b43699c7d6605d34a6cbca4c85ace1ffdecfd3d169132c6bf97ae23b48634957af093d235f37c85d7ad157a16d93b15eab4ad5bae38ac938aff SHA512 66cf32bd9dc9cd74629052e59b6fe8e404c264a9ef529d40b073685c5ded9a1deb028e78b7ccff48cfe78f29fcc9746ec957a38b14d86c7fa89fd3ed88fbf6ac

dev-python/lightgbm/files/lightgbm-4.5.0-loadlib.patch

@@ -0,0 +1,14 @@
+Index: lightgbm-4.5.0/lightgbm/basic.py
+===================================================================
+--- lightgbm-4.5.0.orig/lightgbm/basic.py
++++ lightgbm-4.5.0/lightgbm/basic.py
+@@ -261,8 +261,7 @@ def _log_callback(msg: bytes) -> None:
+
+ def _load_lib() -> ctypes.CDLL:
+     """Load LightGBM library."""
+-    lib_path = find_lib_path()
+-    lib = ctypes.cdll.LoadLibrary(lib_path[0])
++    lib = ctypes.cdll.LoadLibrary("lib_lightgbm.so")
+     lib.LGBM_GetLastError.restype = ctypes.c_char_p
+     callback = ctypes.CFUNCTYPE(None, ctypes.c_char_p)
+     lib.callback = callback(_log_callback)  # type: ignore[attr-defined]

dev-python/lightgbm/lightgbm-4.5.0.ebuild

@@ -0,0 +1,30 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..12} )
+DISTUTILS_USE_PEP517=scikit-build-core
+
+inherit distutils-r1 pypi
+
+DESCRIPTION="LightGBM Python Package"
+HOMEPAGE="https://github.com/microsoft/LightGBM"
+SRC_URI="$(pypi_sdist_url "${PN^}" "${PV}")"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64"
+
+RDEPEND="dev-python/wheel[${PYTHON_USEDEP}]
+	dev-python/numpy[${PYTHON_USEDEP}]
+	dev-python/scipy[${PYTHON_USEDEP}]
+	dev-python/scikit-learn[${PYTHON_USEDEP}]
+	sci-libs/lightgbm"
+distutils_enable_tests pytest
+
+PATCHES=( "${FILESDIR}/${PN}-4.5.0-loadlib.patch" )
+
+python_compile() {
+	SKBUILD_WHEEL_CMAKE=false distutils-r1_python_compile
+}

dev-python/lightgbm/metadata.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM 'http://www.gentoo.org/dtd/metadata.dtd'>
+<pkgmetadata>
+  <maintainer type="person">
+    <email>heroxbd@gentoo.org</email>
+  </maintainer>
+  <upstream>
+    <remote-id type="github">microsoft/LightGBM</remote-id>
+    <remote-id type="pypi">Lightgbm</remote-id>
+  </upstream>
+</pkgmetadata>