dev-python/typing-extensions: Add from Gentoo

It's from Gentoo commit 507415af96eb97babbcea8139e7a106564d9f0cc.

sdk_container/src/third_party/portage-stable/dev-python/typing-extensions/Manifest

@@ -0,0 +1,3 @@
+DIST typing_extensions-4.3.0.gh.tar.gz 47842 BLAKE2B 23a600dcded95a1109da46537bab49a6a478c77334d7c9effe65564bf236371c413a07220df3fa1de1bd0451e90961df908e097e7c7cb6d2534102369ce2590e SHA512 3c4a9073dc89e71b8027d535853d35725163961f7feeaba817e28f93b236bcae805d9b1f6e2be8e9fc3651c283b662935ba0352e5de25ff74df4dc18373e8f7a
+DIST typing_extensions-4.4.0.gh.tar.gz 50027 BLAKE2B 4cb757eadcfce85842dc5625e620f01f8fda00fe3712d5895d8b0aa07a9e649cd20f9f820cb2801e3b34c84c1d3b79d5e71fc49cd37014924825b6cdef0152c7 SHA512 1c046e6dab22fb399acf7ab8771d035aa24c88b09cbd023e80a41cd04851c5f8b1d297275012e933658e963e008b073b8d3815f5703042545b57130daa38f143
+DIST typing_extensions-4.5.0.gh.tar.gz 52431 BLAKE2B 3d905e4f1146d23d00b695044daf653722fce9ade8f44730116bab0b8fb15c3e8d2124a6b0d395fad078878e0e4b7888e19660ca2491ccc9ec01dc11ce318fc8 SHA512 29369da83cdca57aba7d8c2089c77ad265eeb614fd34056f678e6dc9374558d1059ff2c514326115734fadbcad27ec98e1e5fcec087022a9d838cc2bfd1fe825

sdk_container/src/third_party/portage-stable/dev-python/typing-extensions/files/typing-extensions-4.4.0-pypy-tests.patch

@@ -0,0 +1,28 @@
+From 3a54ef1ff6cab8c2946a78b066fd5bba6529945a Mon Sep 17 00:00:00 2001
+From: Sebastian Rittau <srittau@rittau.biz>
+Date: Fri, 7 Oct 2022 14:47:24 +0200
+Subject: [PATCH] Fix tests when running pypy (#84)
+
+Also run CI against pypy and update actions.
+
+Closes: #83
+---
+ .github/workflows/ci.yml      | 14 +++++++-------
+ src/test_typing_extensions.py |  4 ++++
+ 2 files changed, 11 insertions(+), 7 deletions(-)
+
+diff --git a/src/test_typing_extensions.py b/src/test_typing_extensions.py
+index 15b2147..7110f96 100644
+--- a/src/test_typing_extensions.py
++++ b/src/test_typing_extensions.py
+@@ -509,6 +509,10 @@ def blah():
+ 
+         blah()
+ 
++    @skipIf(
++        sys.implementation.name == "pypy",
++        "sum() and print() are not compiled in pypy"
++    )
+     @patch(
+         f"{registry_holder.__name__}._overload_registry",
+         defaultdict(lambda: defaultdict(dict))

sdk_container/src/third_party/portage-stable/dev-python/typing-extensions/metadata.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>python@gentoo.org</email>
+		<name>Python</name>
+	</maintainer>
+	<stabilize-allarches/>
+	<upstream>
+		<remote-id type="pypi">typing-extensions</remote-id>
+		<remote-id type="github">python/typing_extensions</remote-id>
+	</upstream>
+</pkgmetadata>

sdk_container/src/third_party/portage-stable/dev-python/typing-extensions/typing-extensions-4.3.0.ebuild

@@ -0,0 +1,30 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=flit
+PYTHON_COMPAT=( python3_{9..11} pypy3 )
+
+inherit distutils-r1
+
+MY_P=${P/-/_}
+DESCRIPTION="Backported and Experimental Type Hints for Python 3.7+"
+HOMEPAGE="
+	https://pypi.org/project/typing-extensions/
+	https://github.com/python/typing_extensions/
+"
+SRC_URI="
+	https://github.com/python/typing_extensions/archive/${PV}.tar.gz
+		-> ${MY_P}.gh.tar.gz
+"
+S=${WORKDIR}/${MY_P}
+
+LICENSE="PSF-2"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~x64-macos ~x64-solaris"
+
+python_test() {
+	cd "${S}"/src || die
+	"${EPYTHON}" test_typing_extensions.py -v || die "tests failed under ${EPYTHON}"
+}

sdk_container/src/third_party/portage-stable/dev-python/typing-extensions/typing-extensions-4.4.0.ebuild

@@ -0,0 +1,36 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=flit
+PYTHON_COMPAT=( python3_{9..11} pypy3 )
+
+inherit distutils-r1
+
+MY_P=${P/-/_}
+DESCRIPTION="Backported and Experimental Type Hints for Python 3.7+"
+HOMEPAGE="
+	https://pypi.org/project/typing-extensions/
+	https://github.com/python/typing_extensions/
+"
+SRC_URI="
+	https://github.com/python/typing_extensions/archive/${PV}.tar.gz
+		-> ${MY_P}.gh.tar.gz
+"
+S=${WORKDIR}/${MY_P}
+
+LICENSE="PSF-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x64-solaris"
+
+distutils_enable_tests unittest
+
+PATCHES=(
+	"${FILESDIR}"/${P}-pypy-tests.patch
+)
+
+python_test() {
+	cd src || die
+	eunittest
+}

sdk_container/src/third_party/portage-stable/dev-python/typing-extensions/typing-extensions-4.5.0.ebuild

@@ -0,0 +1,32 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=flit
+PYTHON_COMPAT=( python3_{9..11} pypy3 )
+
+inherit distutils-r1
+
+MY_P=${P/-/_}
+DESCRIPTION="Backported and Experimental Type Hints for Python 3.7+"
+HOMEPAGE="
+	https://pypi.org/project/typing-extensions/
+	https://github.com/python/typing_extensions/
+"
+SRC_URI="
+	https://github.com/python/typing_extensions/archive/${PV}.tar.gz
+		-> ${MY_P}.gh.tar.gz
+"
+S=${WORKDIR}/${MY_P}
+
+LICENSE="PSF-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x64-solaris"
+
+distutils_enable_tests unittest
+
+python_test() {
+	cd src || die
+	eunittest
+}