dev-python/coverage: Bump to 5.3

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

dev-python/coverage/Manifest

@@ -2,3 +2,4 @@ DIST coverage-4.5.2.tar.gz 384845 BLAKE2B a7b4f249a68e025449d26ef8ee2194b9ce355c
 DIST coverage-4.5.4.tar.gz 385185 BLAKE2B 9d040bff13cebd1cb7147f15c3ec03bb08648cf801b5b2bb046a6b5bcadb3d3886be8bf0a624d225f25d10a5ca82fe5fb88f55e44e92a0a3285836b837972970 SHA512 ba534e04fe35cbadc4b16735f25c08f579a49a6677ec106680f222f2dfb3d0f1e011d0962f1c2108c375173ac4588bea1619ecda05ff9ba6fd888daddfd27b0e
 DIST coverage-5.1.tar.gz 687427 BLAKE2B f4eee548cd6fb58c4a527b9e0ac5ee4133c984358f42ca0c87301f95eb60253a2748ccf9d4e88358941d7897998e68e3c5e70e6dc7387bf5e60eda950f4a679c SHA512 7bd3ca158fe2eab1946c52161fb877623d4ed0382de193aa6eb267443fdda86089ec7aaae518115d6a3b5487fd1400320eb503b9afe83182fb3c3621ccbfb6d7
 DIST coverage-5.2.1.tar.gz 694076 BLAKE2B 0aaf9b5668c2fac1220c377d5b841341b534bd14579b70fa3d4c5e64239df71b95c2278e041f46ae3f9d2ae55145894d51457caabdd9540b7d8ce3f32f8d409c SHA512 bda6129a4f4e2db3d26878036ceec137e4f359b8d37ce087e4007751bf0bbda7d706967a50b120378fa533f980e70142328099332374a1f303fa0083ffc078b0
+DIST coverage-5.3.tar.gz 693632 BLAKE2B 9daa3a0fd7f8c3ff7c9d68603e11a0a419d3ab50e3c3fb6be5b694aa1f7566040e1212b7175dfa4f71a0a309db325c00f94a85e0e9e755ae8c4f09c499d0daf4 SHA512 f40a21c394b1a72118965f702ae2b8e09c4e0b2fe92709aedf1de4c8074cd9c2cae0ed4860fbb863e4e5479f1067ff806d7051f7683d6b324de9945c0cacfc39

dev-python/coverage/coverage-5.3.ebuild

@@ -0,0 +1,69 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+PYTHON_COMPAT=( python3_{6,7,8,9} pypy3 )
+PYTHON_REQ_USE="threads(+),sqlite(+)"
+DISTUTILS_USE_SETUPTOOLS=rdepend
+
+inherit distutils-r1
+
+DESCRIPTION="Code coverage measurement for Python"
+HOMEPAGE="https://coverage.readthedocs.io/en/latest/ https://pypi.org/project/coverage/"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~ia64 ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+#IUSE="test"
+# The tests are impossible to appease.  Please run them externally
+# via tox.  Or fix the ebuild if you have hours of time to spend
+# on something utterly useless.
+RESTRICT="test"
+
+#BDEPEND="
+#	test? (
+#		dev-python/PyContracts[${PYTHON_USEDEP}]
+#		dev-python/flaky[${PYTHON_USEDEP}]
+#		dev-python/hypothesis[${PYTHON_USEDEP}]
+#		dev-python/mock[${PYTHON_USEDEP}]
+#		dev-python/pytest[${PYTHON_USEDEP}]
+#		>=dev-python/unittest-mixins-1.4[${PYTHON_USEDEP}]
+#	)
+#"
+
+src_prepare() {
+	# avoid the dep on xdist, run tests verbosely
+	sed -i -e '/^addopts/s:-n3:-v:' setup.cfg || die
+	distutils-r1_src_prepare
+}
+
+python_compile() {
+	if [[ ${EPYTHON} == python2.7 ]]; then
+		local CFLAGS="${CFLAGS} -fno-strict-aliasing"
+		export CFLAGS
+	fi
+
+	distutils-r1_python_compile
+}
+
+python_test() {
+	distutils_install_for_testing
+	local bindir=${TEST_DIR}/scripts
+
+	pushd tests/eggsrc >/dev/null || die
+	distutils_install_for_testing
+	popd >/dev/null || die
+
+	"${EPYTHON}" igor.py zip_mods || die
+	PATH="${bindir}:${PATH}" "${EPYTHON}" igor.py test_with_tracer py || die
+
+	# No C extensions under pypy
+	if [[ ${EPYTHON} != pypy* ]]; then
+		cp -l -- "${TEST_DIR}"/lib/*/coverage/*.so coverage/ || die
+		PATH="${bindir}:${PATH}" "${EPYTHON}" igor.py test_with_tracer c || die
+	fi
+
+	# clean up leftover "egg1" directory
+	rm -rf build/lib/egg1 || die
+}