dev-python/pyzstd: new package, add 0.16.2

Signed-off-by: Takuya Wakazono <pastalian46@gmail.com>

dev-python/pyzstd/Manifest

@@ -0,0 +1 @@
+DIST pyzstd-0.16.2.tar.gz 789505 BLAKE2B 268e543ba14395d50351ca8ddd39aba829a910bd529ef50967e6b695ef9ffd7ea3ac879ecabeb369c53b02a7adec50018e0528765d78bed92d9d6761e8cd9690 SHA512 b5660248f86bc84bc9d64da20ca7f5f56ac0d831170292e71b475e06480b13074c3de92d796e0e1858adfa0dbd272c37b31e6dc772c2239011690429adb112e2

dev-python/pyzstd/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>pastalian46@gmail.com</email>
+    <name>Takuya Wakazono</name>
+  </maintainer>
+  <upstream>
+    <remote-id type="github">Rogdham/pyzstd</remote-id>
+    <remote-id type="pypi">pyzstd</remote-id>
+  </upstream>
+</pkgmetadata>

dev-python/pyzstd/pyzstd-0.16.2.ebuild

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+# Copyright 2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_EXT=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{11..13} )
+inherit distutils-r1 pypi
+
+DESCRIPTION="Python bindings to Zstandard (zstd) compression library"
+HOMEPAGE="
+	https://github.com/Rogdham/pyzstd
+	https://pypi.org/project/pyzstd/
+"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64"
+
+RDEPEND="app-arch/zstd:="
+DEPEND="${RDEPEND}"
+
+distutils_enable_tests unittest
+
+src_prepare() {
+	# we don't need the custom build backend
+	sed -i 's/pyzstd_pep517/setuptools.build_meta/' pyproject.toml || die
+	sed -i "s/'-g0', '-flto'//" setup.py || die
+	distutils-r1_src_prepare
+}
+
+python_configure_all() {
+	DISTUTILS_ARGS=( --dynamic-link-zstd )
+}
+
+python_test() {
+	eunittest tests
+}