dev-python/distlib: Readd, new dep of virtualenv

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

dev-python/distlib/Manifest

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+DIST distlib-0.3.0.tar.bz2 848089 BLAKE2B 70f88b570229e2ab4c95bd8da0375aba189f66dec8defcf8eedf1be6924d93bd20b54c68e5fba867a6c68a31d4ef926ee2dc18ccb0391278680f30a62d0cd251 SHA512 01b0e7d59736414a241efdf883e4ee63eafe9614ce3b4147781a5750d25d6383543146c5277e3e0d3e11ce03693afd0331c6e3416776a6f84de7a4d9dadf3de4

dev-python/distlib/distlib-0.3.0.ebuild

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+# Copyright 2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+DISTUTILS_USE_SETUPTOOLS=no
+PYTHON_COMPAT=( python{2_7,3_{6,7,8}} pypy3 )
+
+inherit distutils-r1 vcs-snapshot
+
+DESCRIPTION="Low-level components of distutils2/packaging"
+HOMEPAGE="https://pypi.org/project/distlib/
+	https://bitbucket.org/pypa/distlib/"
+# pypi has zip only :-(
+SRC_URI="
+	https://bitbucket.org/pypa/distlib/get/${PV}.tar.bz2 -> ${P}.tar.bz2"
+
+LICENSE="PSF-2"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+
+distutils_enable_tests setup.py
+
+src_prepare() {
+	# this test assumes pristine venv with no system packages
+	sed -e 's:test_dependency_finder:_&:' \
+		-i tests/test_locators.py || die
+	# no clue but it looks horribly fragile
+	sed -e 's:test_sequencer_basic:_&:' \
+		-i tests/test_util.py || die
+	# TODO: investigate
+	sed -e 's:test_upload:_&:' \
+		-i tests/test_index.py || die
+	# these require Internet
+	sed -e 's:test_search:_&:' \
+		-i tests/test_index.py || die
+	sed -e 's:test_aggregation:_&:' \
+		-e 's:test_all:_&:' \
+		-e 's:test_dist_reqts:_&:' \
+		-e 's:test_json:_&:' \
+		-e 's:test_prereleases:_&:' \
+		-e 's:test_scraper:_&:' \
+		-i tests/test_locators.py || die
+	sed -e 's:test_package_data:_&:' \
+		-i tests/test_util.py || die
+	# doesn't work with our patched pip
+	sed -e '/PIP_AVAIL/s:True:False:' \
+		-i tests/test_wheel.py || die
+
+	distutils-r1_src_prepare
+}

dev-python/distlib/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>python@gentoo.org</email>
+	</maintainer>
+</pkgmetadata>