drop support for obsolete python versions

dev-python/flake8/flake8-3.7.8-r1.ebuild

@@ -0,0 +1,51 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+PYTHON_COMPAT=( python3_{6,7} )
+
+inherit distutils-r1
+
+DESCRIPTION="A wrapper around PyFlakes, pep8 & mccabe"
+HOMEPAGE="https://gitlab.com/pycqa/flake8 https://pypi.org/project/flake8/"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86 ~amd64-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+IUSE="test"
+
+# requires.txt inc. mccabe however that creates a circular dep
+RDEPEND="
+	>=dev-python/pyflakes-2.0.0[${PYTHON_USEDEP}]
+	<dev-python/pyflakes-2.1.0[${PYTHON_USEDEP}]
+	>=dev-python/pycodestyle-2.4.0[${PYTHON_USEDEP}]
+	<dev-python/pycodestyle-2.5.0[${PYTHON_USEDEP}]
+	$(python_gen_cond_dep 'dev-python/enum34[${PYTHON_USEDEP}]' 'python2*' 'pypy*' )
+	$(python_gen_cond_dep 'dev-python/configparser[${PYTHON_USEDEP}]' 'python2*' pypy )
+"
+PDEPEND="
+	>=dev-python/mccabe-0.6.0[${PYTHON_USEDEP}]
+	<dev-python/mccabe-0.7.0[${PYTHON_USEDEP}]
+"
+DEPEND="${RDEPEND}
+	dev-python/setuptools[${PYTHON_USEDEP}]
+	test? (
+		${PDEPEND}
+		dev-python/pytest[${PYTHON_USEDEP}]
+		>=dev-python/mock-2.0.0[${PYTHON_USEDEP}]
+	)
+"
+
+python_prepare_all() {
+	# Flake8 falsely assumes it needs pytest-runner unconditionally and will
+	# try to install it, causing sandbox violations.
+	sed -i -e "/setup_requires=\['pytest-runner'\],/d" setup.py || die
+
+	distutils-r1_python_prepare_all
+}
+
+python_test() {
+	py.test -v || die "Tests fail with ${EPYTHON}"
+}