dev-python/coverage: Bump to 4.5.4, start fixing tests

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

dev-python/coverage/Manifest

@@ -1,2 +1,3 @@
 DIST coverage-4.2.tar.gz 359873 BLAKE2B 4bca9c44922ad99203d65387267c62bee02b0368dfd70c758dbed959ebaa1352366603359865662cde863ca1518de21a4d33d22b86b78ff75c2c23aecf4d726c SHA512 17c508e65e8494bda51dc301eb99e24f39392cc3efe54eee5d94bf45021f91cb5e1acc192981974eb1725e01cd4590c80308bf9bb237a129c2de067bd4556e23
 DIST coverage-4.5.2.tar.gz 384845 BLAKE2B a7b4f249a68e025449d26ef8ee2194b9ce355c979d1f5192a7863a0ab0089f9deb3a8e63a39bef528ed7c58fbcc7cd4bc193fea3a135f5996a6655268a6b7a93 SHA512 0d98c8118648a319ac6f3b4c4c6f1ff8a92085bbe8276dd5504c8df4638933f920d7382d8e6de8e16bff43b62091310e0eab7b7722c6d28c976baedbfae3d03e
+DIST coverage-4.5.4.tar.gz 385185 BLAKE2B 9d040bff13cebd1cb7147f15c3ec03bb08648cf801b5b2bb046a6b5bcadb3d3886be8bf0a624d225f25d10a5ca82fe5fb88f55e44e92a0a3285836b837972970 SHA512 ba534e04fe35cbadc4b16735f25c08f579a49a6677ec106680f222f2dfb3d0f1e011d0962f1c2108c375173ac4588bea1619ecda05ff9ba6fd888daddfd27b0e

dev-python/coverage/coverage-4.5.4.ebuild

@@ -0,0 +1,50 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+PYTHON_COMPAT=( python2_7 python3_{5,6,7} pypy pypy3 )
+PYTHON_REQ_USE="threads(+)"
+
+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}/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+RDEPEND=""
+BDEPEND="
+	>=dev-python/setuptools-18.4[${PYTHON_USEDEP}]
+	test? (
+		dev-python/PyContracts[${PYTHON_USEDEP}]
+		dev-python/flaky[${PYTHON_USEDEP}]
+		dev-python/mock[${PYTHON_USEDEP}]
+		>=dev-python/unittest-mixins-1.4[${PYTHON_USEDEP}]
+	)
+"
+
+src_prepare() {
+	# avoid the dep on xdist
+	sed -i -e '/^addopts/s:-n3::' 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
+	"${EPYTHON}" igor.py test_with_tracer py || die
+	"${EPYTHON}" igor.py test_with_tracer c || die
+}