re-add python-dateutil-2.8.1-r3 from main

dev-python/python-dateutil/python-dateutil-2.8.1-r3.ebuild

@@ -0,0 +1,54 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{7..10} pypy3 )
+
+inherit distutils-r1
+
+DESCRIPTION="Extensions to the standard Python datetime module"
+HOMEPAGE="
+	https://dateutil.readthedocs.io/
+	https://pypi.org/project/python-dateutil/
+	https://github.com/dateutil/dateutil/
+"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos"
+
+RDEPEND="
+	>=dev-python/six-1.5[${PYTHON_USEDEP}]
+	sys-libs/timezone-data
+"
+BDEPEND="${RDEPEND}
+	dev-python/setuptools[${PYTHON_USEDEP}]
+	dev-python/setuptools_scm[${PYTHON_USEDEP}]
+	test? (
+		dev-python/freezegun[${PYTHON_USEDEP}]
+		dev-python/hypothesis[${PYTHON_USEDEP}]
+	)
+"
+
+PATCHES=(
+	"${FILESDIR}/0001-zoneinfo-Get-timezone-data-from-system-tzdata-r1.patch"
+	"${FILESDIR}/python-dateutil-2.8.1-no-pytest-cov.patch"
+)
+
+distutils_enable_tests pytest
+
+python_prepare_all() {
+	# don't install zoneinfo tarball
+	sed -i '/package_data=/d' setup.py || die
+
+	distutils-r1_python_prepare_all
+}
+
+python_prepare() {
+	if [[ ${EPYTHON} == python3.7 ]]; then
+		# these tests are flakey on 3.7
+		rm dateutil/test/property/test_{parser,isoparse}_prop.py || die
+	fi
+}