dev-python/taskgroup: New package, v0.0.0_alpha4

New backport required by dev-python/hypercorn, sigh.

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

dev-python/taskgroup/Manifest

@@ -0,0 +1 @@
+DIST taskgroup-0.0.0a4.tar.gz 8553 BLAKE2B b9fe9e2442ef8ea5972599a150ad8d2e41004a0aee2112e455d0b850c3833fb266fe2a6b730a4d8371eb3fff0d7101f2803d8708f3f9ea1159338495ca9255be SHA512 fc5a78de3d20fecd82a2c9a142ecf1df8f33f185a792f50b86558d7bb38d49307977a4db0709dbb806cca2a1d3aba46c86833c24973e155c3295437038581ab7

dev-python/taskgroup/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="project">
+		<email>python@gentoo.org</email>
+	</maintainer>
+	<stabilize-allarches/>
+	<upstream>
+		<remote-id type="github">graingert/taskgroup</remote-id>
+		<remote-id type="pypi">taskgroup</remote-id>
+	</upstream>
+</pkgmetadata>

dev-python/taskgroup/taskgroup-0.0.0_alpha4.ebuild

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+# Copyright 2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=flit
+PYTHON_COMPAT=( pypy3 python3_10 )
+
+inherit distutils-r1 pypi
+
+DESCRIPTION="Backport of asyncio.TaskGroup, asyncio.Runner and asyncio.timeout"
+HOMEPAGE="
+	https://github.com/graingert/taskgroup/
+	https://pypi.org/project/taskgroup/
+"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64"
+
+RDEPEND="
+	dev-python/exceptiongroup[${PYTHON_USEDEP}]
+	<dev-python/typing-extensions-5[${PYTHON_USEDEP}]
+	>=dev-python/typing-extensions-4.8[${PYTHON_USEDEP}]
+"