dev-python/narwhals: Bump to 2.16.0

Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/narwhals/Manifest

@@ -1,2 +1,4 @@
 DIST narwhals-2.15.0.tar.gz 603479 BLAKE2B 053945c4812053f05208f82bbc0759a7e7c453c5f40b892dcb424a764c22c8d417c6036eb827e7c73fc086dc97d09e12898e950e7cf5f8bef608e22cf44c369f SHA512 bd73a3bc8cfb36e54892f9f178ffc03134f3c76d9ea4415784b1a5ff8043c70063ada30492e9869bfc6fa3c85561c42354ae0b95424e2082495e9c07c52fb1f4
 DIST narwhals-2.15.0.tar.gz.provenance 9526 BLAKE2B 5364e9808452ed738861512d3720b022024cc4bd6d7f2382c8ed603f4bd1a28eadb8e2a03f287b6a849ad652efb56577dceec29c315a864b754aec5e27ca7360 SHA512 be892b5c05a347891a98a314cc9249bcfca07e5ce9e46ffd98a4392bc8f6c357ca642529c56697ee7ef83baa0c9330beef5c5f2a1073b60ed1d5d965f22f796b
+DIST narwhals-2.16.0.tar.gz 618268 BLAKE2B b4b67f78a5e9cff9f8d4a6a17e363399d1f6cf5b068f2e8bb6a8a92beb31fe7853567b5537d5786aaf39fe53b6c416a70079418bbb48f9b7d1158f0bc73b1981 SHA512 2c2a3b08419644a098cee09e613538e7c6c1b0fad2a2b9e58362a1a0787c0b9761b5126a22af44f0c308e4ea3764f166b2b69b3e038b7a660179658d3cfd1f40
+DIST narwhals-2.16.0.tar.gz.provenance 9706 BLAKE2B 1d424ad3255e05303bea8d892b3d2ed49634d958f95582722505a4e2d2f6745252fed52838dec5e2e74132b48e72f02b30e8b27b099fcffd160f915894d46f51 SHA512 e20cc4963dbb09502f6dce4f627eebd6e8a3b7358d5cc5e3d10061dd9d4a861612bcb914d09cb9d7eb8e3f640aecf4a98f98392b60bb7bf1e2598f7790fedae4

dev-python/narwhals/narwhals-2.16.0.ebuild

@@ -0,0 +1,44 @@
+# Copyright 2025-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=hatchling
+PYPI_VERIFY_REPO=https://github.com/narwhals-dev/narwhals
+PYTHON_COMPAT=( python3_{11..14} )
+
+inherit distutils-r1 pypi
+
+DESCRIPTION="Extremely lightweight compatibility layer between dataframe libraries"
+HOMEPAGE="
+	https://github.com/narwhals-dev/narwhals/
+	https://pypi.org/project/narwhals/
+"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64"
+
+BDEPEND="
+	test? (
+		>=dev-python/pandas-1.1.3[${PYTHON_USEDEP}]
+		>=dev-python/pyarrow-13.0.0[${PYTHON_USEDEP}]
+	)
+"
+
+EPYTEST_PLUGINS=( hypothesis pytest-env )
+EPYTEST_XDIST=1
+distutils_enable_tests pytest
+
+python_test() {
+	local EPYTEST_DESELECT=(
+		# segfaults
+		# https://github.com/apache/arrow/issues/47252
+		'tests/modern_polars/unpivot_test.py::test_unpivot[pyarrow]'
+		# fragile to parallel merges that can cause non-atomic .dist-info
+		# changes
+		tests/system_info_test.py::test_get_sys_info
+	)
+
+	epytest --runslow --constructors="pandas,pandas[nullable],pandas[pyarrow],pyarrow"
+}