dev-lang/python: Backport security fixes

Bug: https://bugs.gentoo.org/732498
Signed-off-by: Michał Górny <mgorny@gentoo.org>

6 files changed, 1740 insertions, 0 deletions

diff --git a/dev-lang/python/Manifest b/dev-lang/python/Manifest
index 442ac211c4ee..a3e60923a1d3 100644
--- a/dev-lang/python/Manifest
+++ b/dev-lang/python/Manifest
@@ -8,13 +8,18 @@ DIST Python-3.8.3.tar.xz 17912964 BLAKE2B 9c415823f70bad97936e0472fc53a1b7650cbf
 DIST Python-3.8.4.tar.xz 18020412 BLAKE2B cfcfb293c413b25fc3ca48116cf8ffaba7bee18e9af9accf26be9b4373a0c62dd8e9da70e5a8a38ba6da4d1afbdbd589ae5ea4b618b65130ae061698b445908c SHA512 37a36d014a8372742be9d0bd9dd3a275e100dc21b1515c145bc62425d4d157327b6e63ad99bc888c0b36c1da4c05676c40eb086e75072d1906e3210ec3043dcb
 DIST Python-3.9.0b3.tar.xz 18518204 BLAKE2B fa1707f0d55a83e739e9ad51979f8aff9720588a8a77b7ce8beb9ecf599955677758dec1551a0549b010f86c1f8fbc5915cef34d63097534d1c512c92fad5bd1 SHA512 c06a6b874fbce93ec37402034158a7bab44cab775d6da467eaddc1eb402663415f9d788e657a204f17dffe5fa6f379379f9215b5198ec5071565486b6f0e4a2a
 DIST Python-3.9.0b4.tar.xz 18602256 BLAKE2B 9f260f2b3c6380745c343d2883db430dda1b76b120050df16e53c1021e5a746c7e4a6aa8e83c746c3705c6872e83369a649c48ffdaef972a7049c44f7bc3030b SHA512 1c9bac850159352effb163b41590b3e9c05100b449798b5615f7a51a59a3877fe9558d593bb47c24915226637e3394e7864a1b1555cd6c5b5e5e308972208ecf
+DIST python-gentoo-patches-2.7.18-r1.tar.xz 15500 BLAKE2B 7008b29827dbbd80d4ab8f010ccf9efced99c6b4b9109e4430c0ba269ce53529cb6fedd832502c8d2d3aa21938749cc3591c2545b21c0a59a6e60f8598e84ccc SHA512 e656ab07281fd932b92165674619bbf55ecf410d2937ae4ae771d490b4532540498cc731d30d19c1e8aafd1f64df8a406bbfbb46ea985b3dcd8edb89a0b7f20f
 DIST python-gentoo-patches-2.7.18.tar.xz 15012 BLAKE2B f691e231c793bb8f11fb64c89b90e022af8e0fe0e28839822c2ae6214fdab6c6fd9c07466c4b5797d3964b7db09fd979597774fb7872dc674e8df59321b6bf95 SHA512 a2952b27bfc0a52f322b2f3e177cbe09fa288c9ca5967c13fb9c2d45d3e81033407e30e86bdaaaa258f0b3cfa2cef6eda5502bddb6390f9512a493d145d34e03
 DIST python-gentoo-patches-3.6.10-r1.tar.xz 15556 BLAKE2B 3d4755a083172fc878d3454797a4a7fa809c7767b7f2ba0919b95076b8ecba62ac604a7db349d8dd71f83aa44d4580d0c433ae6cd2027078e7779cec79185ba2 SHA512 b361ff3fe9545bb59a7e85f179a094d58219be35d20cef83db02672d0a9a58fccfda62fbe8c2bf64250c4043b8517cbc2091380611c5f1e63bfac9ca7c4e47b0
 DIST python-gentoo-patches-3.6.11-r2.tar.xz 12448 BLAKE2B 44f89d4c70e241d37f7941f80393ca6395ff4050b06e1f40a34c82541cbb1f62121c3d0049c1f815829dde998b7f12eaf46bae686e0c5a3482bc07b4f925374e SHA512 7e343a1cf4dc70f328d854b56f48a920fdb52c999cce6cffed4b6828bec00d67c8fca463be2e81c0bcc24fa23721586e547bae4e82b573962f8e4da6a84da6b1
+DIST python-gentoo-patches-3.6.11-r3.tar.xz 14064 BLAKE2B 416780c15ee12cfc06bfd1397d510dd42fea61abcaafd9cf54f27d843342debf0caa93c9700686feb14f04239ad4ea8f20ce8736029638abe7d7b9c57b9d659d SHA512 de6a4a5bec89e6149b85b383991c99bd9460a8f59f52a700d54edd0154557727ccc79daaa90336dff434b222657c3f28dda1228d2d474002d0a28f31c9ed0b10
 DIST python-gentoo-patches-3.7.7.tar.xz 14644 BLAKE2B 1a377eac945310082ec9fa257bcb406c7eaf24b5e80469dd49e82a1bc0554b75394678609cae447cb0fc7a19059b29166bf110b6ed99a89a9919b3a56a323f87 SHA512 2c7fbcefd6f4d1674b78f3b67f2be3f1b168e08c318fefe8d4757f2d30c22477f5010ad6f2c0abb265d819ee667617f21f93e002242e216b4ee570200b0ddf74
 DIST python-gentoo-patches-3.7.8-r2.tar.xz 11608 BLAKE2B 6b012f22afd9060dada34566745423cc6d6d000821074e7cddb11c8a11c16bb71704b7d213d43f34f4f17e28d72c15a2e7523e3bcd0065216a63521e467b58b9 SHA512 d72acd627794e5045a84da8e7651b1825900a322aab2d1c4fef3cf02e429ced1d83664a74072cc2133bd1044b2d30b5e0974cf22ca908ff6746e276a9fd6619c
+DIST python-gentoo-patches-3.7.8-r3.tar.xz 13232 BLAKE2B 9df47b1f61d08f62a80221bc48d73ec27cd74a9ade8219912c5b02eaea919b70d91b1154837cd03c0129a5839186e9c970167ca3398129c044c25c7853f1f920 SHA512 e1477d425cb6125ca2286d816f4aa4e9e3c789d6a4f4907bd7b78549598356cae5766f642e2cad9e7c3abe2e82c12cf3cb7db3513be68aa213cb64cc0abc678a
 DIST python-gentoo-patches-3.8.2-r1.tar.xz 16112 BLAKE2B 9ae197a56bbd96afa11c4312c68ac030138773df22dedc3a3e6fb9e81b366d6522fb2c147946eb604a87d749cbea7e5e5eed8ae0e737294c0949a8c2791dd327 SHA512 00f31c3b7227dd443f05234fbb7744338ce687e1ea4d236a6b1d386d76082acb34259f59442018c9ace54e0004dea9ac822ae2a4470159b83d00112e258baff0
 DIST python-gentoo-patches-3.8.3-r1.tar.xz 12492 BLAKE2B c580918faba7b13137f108bee28d8425a69501d1f06e114eaf259512d6e9ceb19e6a6355ffbf860210578d2696ecf8f252b411d385dbf3f08ceb7f1bfee589ce SHA512 5e09d61c6d6bd41f5652b39dc502be50b8f85fa9731b4e07af0dbde79101148f6216a8ad56c06047a9b19c4e190ab8316c57654ee03e4773d2b93f55629e4ede
 DIST python-gentoo-patches-3.8.4-r1.tar.xz 10956 BLAKE2B 37cfa00ea888c669cde97ff4adb435f341fb00b14736d807eb72d13296f8a665c33027ce51b64182e553038c88e96d35336949ced21fb80f6ab47c68ef842781 SHA512 dd4e7a8354aa9f5f512c2c4f7227eb3aa60ee67f92017db851fc893ec1914c50ab517457d56ffc14fcabf82231803b4ea188858225e2960d7eda5ec15f7d5e3d
+DIST python-gentoo-patches-3.8.4-r2.tar.xz 12660 BLAKE2B 3197edc6beb2b1be05399f268ff9b337ed67f699e3867160fea8e50f763a62b184ddd7adcdfa55dafc8c14f91e020b409461027361d04858db667992794b1168 SHA512 c56adbec04bfb950f7fb65f38cc0b78eaae9783800c755b7ac934b07725fcf4d69bbc2c29f7d1255acd6e88559a216dc8a6088042a479aa0d453b706e318c0cf
 DIST python-gentoo-patches-3.9.0b3-r1.tar.xz 8860 BLAKE2B 87636ad5f1e2e92b2b12f46384d89b2f478861b320687edd257b4a157afb86a5a9d2bf55e7b51e1e612013e974689c64082012243c5c27afe65f5cb3bb03d562 SHA512 266f0925c1b62bfa38fd05f1fc4bc953d87ae44f0cb54ac415e374ef508e88b5cd07f52dba470f418fa7db74f9c06975778a95e21a50110859f88695a65265cb
 DIST python-gentoo-patches-3.9.0b3.tar.xz 8592 BLAKE2B 261dc9a5c7b370eb3f693f5bfb15562a5ee8b24b038db1b16571f096ff0d451ef8830c7f51db53366ebcf6e378dfab57e186f1789dc3ecc95e65595708f4428e SHA512 4c630b1b15e752ae154bfc9d0f5c8a17ac02127f96ccf114469bb92d02fe7d2ac13acd2415bfe6af0169c823b4aec09e2d6886c031df8e8c809ccb94efa60b62
+DIST python-gentoo-patches-3.9.0b4.tar.xz 10640 BLAKE2B af433fee46ff3eca0ef23cea2ed838cb5a4337a646f3b9a662f7ecf2e75d5fef81437daf88c920b6459160d328b3fa976f7611d1a34084b67e93fc72340fd070 SHA512 dc7cc77fc72c701d09a85dec2a2172ae71223e7a55455f689967d3246bb6e2815c9e4f45493545c03bc949d54a1e9ff354de88c785bc6c215b736862a21dea19
diff --git a/dev-lang/python/python-2.7.18-r1.ebuild b/dev-lang/python/python-2.7.18-r1.ebuild
new file mode 100644
index 000000000000..1813838b038b
--- /dev/null
+++ b/dev-lang/python/python-2.7.18-r1.ebuild
@@ -0,0 +1,366 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="7"
+WANT_LIBTOOL="none"
+
+inherit autotools flag-o-matic pax-utils python-utils-r1 toolchain-funcs
+
+MY_P="Python-${PV}"
+PYVER=$(ver_cut 1-2)
+PATCHSET="python-gentoo-patches-2.7.18-r1"
+
+DESCRIPTION="An interpreted, interactive, object-oriented programming language"
+HOMEPAGE="https://www.python.org/"
+SRC_URI="https://www.python.org/ftp/python/${PV}/${MY_P}.tar.xz
+	https://dev.gentoo.org/~mgorny/dist/python/${PATCHSET}.tar.xz"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="PSF-2"
+SLOT="${PYVER}"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86"
+IUSE="-berkdb bluetooth build elibc_uclibc examples gdbm hardened ipv6 libressl +ncurses +readline sqlite +ssl +threads tk +wide-unicode wininst +xml"
+
+# Do not add a dependency on dev-lang/python to this ebuild.
+# If you need to apply a patch which requires python for bootstrapping, please
+# run the bootstrap code on your dev box and include the results in the
+# patchset. See bug 447752.
+
+RDEPEND="app-arch/bzip2:=
+	dev-libs/libffi:=
+	>=sys-libs/zlib-1.1.3:=
+	virtual/libcrypt:=
+	virtual/libintl
+	berkdb? ( || (
+		sys-libs/db:5.3
+		sys-libs/db:5.1
+		sys-libs/db:4.8
+		sys-libs/db:4.7
+		sys-libs/db:4.6
+		sys-libs/db:4.5
+		sys-libs/db:4.4
+		sys-libs/db:4.3
+		sys-libs/db:4.2
+	) )
+	gdbm? ( sys-libs/gdbm:=[berkdb] )
+	ncurses? ( >=sys-libs/ncurses-5.2:= )
+	readline? ( >=sys-libs/readline-4.1:= )
+	sqlite? ( >=dev-db/sqlite-3.3.8:3= )
+	ssl? (
+		!libressl? ( dev-libs/openssl:= )
+		libressl? ( dev-libs/libressl:= )
+	)
+	tk? (
+		>=dev-lang/tcl-8.0:=
+		>=dev-lang/tk-8.0:=
+		dev-tcltk/blt:=
+		dev-tcltk/tix
+	)
+	xml? ( >=dev-libs/expat-2.1:= )"
+# bluetooth requires headers from bluez
+DEPEND="${RDEPEND}
+	bluetooth? ( net-wireless/bluez )
+	virtual/pkgconfig
+	!sys-devel/gcc[libffi(-)]"
+RDEPEND+=" !build? ( app-misc/mime-types )"
+PDEPEND=">=app-eselect/eselect-python-20140125-r1"
+
+pkg_setup() {
+	if use berkdb; then
+		ewarn "'bsddb' module is out-of-date and no longer maintained inside"
+		ewarn "dev-lang/python. 'bsddb' and 'dbhash' modules have been additionally"
+		ewarn "removed in Python 3. A maintained alternative of 'bsddb3' module"
+		ewarn "is provided by dev-python/bsddb3."
+	else
+		if has_version "=${CATEGORY}/${PN}-${PV%%.*}*[berkdb]"; then
+			ewarn "You are migrating from =${CATEGORY}/${PN}-${PV%%.*}*[berkdb]"
+			ewarn "to =${CATEGORY}/${PN}-${PV%%.*}*[-berkdb]."
+			ewarn "You might need to migrate your databases."
+		fi
+	fi
+}
+
+src_prepare() {
+	# Ensure that internal copies of expat, libffi and zlib are not used.
+	rm -fr Modules/expat || die
+	rm -fr Modules/_ctypes/libffi* || die
+	rm -fr Modules/zlib || die
+
+	local PATCHES=(
+		"${WORKDIR}/${PATCHSET}"
+	)
+
+	default
+
+	sed -i -e "s:@@GENTOO_LIBDIR@@:$(get_libdir):g" \
+		Lib/distutils/command/install.py \
+		Lib/distutils/sysconfig.py \
+		Lib/site.py \
+		Lib/sysconfig.py \
+		Lib/test/test_site.py \
+		Makefile.pre.in \
+		Modules/Setup.dist \
+		Modules/getpath.c \
+		setup.py || die "sed failed to replace @@GENTOO_LIBDIR@@"
+
+	eautoreconf
+}
+
+src_configure() {
+	# dbm module can be linked against berkdb or gdbm.
+	# Defaults to gdbm when both are enabled, #204343.
+	local disable
+	use berkdb    || use gdbm || disable+=" dbm"
+	use berkdb    || disable+=" _bsddb"
+	# disable automagic bluetooth headers detection
+	use bluetooth || export ac_cv_header_bluetooth_bluetooth_h=no
+	use gdbm      || disable+=" gdbm"
+	use ncurses   || disable+=" _curses _curses_panel"
+	use readline  || disable+=" readline"
+	use sqlite    || disable+=" _sqlite3"
+	use ssl       || export PYTHON_DISABLE_SSL="1"
+	use tk        || disable+=" _tkinter"
+	use xml       || disable+=" _elementtree pyexpat" # _elementtree uses pyexpat.
+	export PYTHON_DISABLE_MODULES="${disable}"
+
+	if ! use xml; then
+		ewarn "You have configured Python without XML support."
+		ewarn "This is NOT a recommended configuration as you"
+		ewarn "may face problems parsing any XML documents."
+	fi
+
+	if [[ -n "${PYTHON_DISABLE_MODULES}" ]]; then
+		einfo "Disabled modules: ${PYTHON_DISABLE_MODULES}"
+	fi
+
+	if [[ "$(gcc-major-version)" -ge 4 ]]; then
+		append-flags -fwrapv
+	fi
+
+	filter-flags -malign-double
+
+	# https://bugs.gentoo.org/show_bug.cgi?id=50309
+	if is-flagq -O3; then
+		is-flagq -fstack-protector-all && replace-flags -O3 -O2
+		use hardened && replace-flags -O3 -O2
+	fi
+
+	if tc-is-cross-compiler; then
+		# Force some tests that try to poke fs paths.
+		export ac_cv_file__dev_ptc=no
+		export ac_cv_file__dev_ptmx=yes
+	fi
+
+	# Export CXX so it ends up in /usr/lib/python2.X/config/Makefile.
+	tc-export CXX
+	# The configure script fails to use pkg-config correctly.
+	# http://bugs.python.org/issue15506
+	export ac_cv_path_PKG_CONFIG=$(tc-getPKG_CONFIG)
+
+	# Set LDFLAGS so we link modules with -lpython2.7 correctly.
+	# Needed on FreeBSD unless Python 2.7 is already installed.
+	# Please query BSD team before removing this!
+	append-ldflags "-L."
+
+	local dbmliborder
+	if use gdbm; then
+		dbmliborder+="${dbmliborder:+:}gdbm"
+	fi
+	if use berkdb; then
+		dbmliborder+="${dbmliborder:+:}bdb"
+	fi
+
+	local myeconfargs=(
+		# The check is broken on clang, and gives false positive:
+		# https://bugs.gentoo.org/596798
+		# (upstream dropped this flag in 3.2a4 anyway)
+		ac_cv_opt_olimit_ok=no
+		# glibc-2.30 removes it; since we can't cleanly force-rebuild
+		# Python on glibc upgrade, remove it proactively to give
+		# a chance for users rebuilding python before glibc
+		ac_cv_header_stropts_h=no
+
+		--with-fpectl
+		--enable-shared
+		$(use_enable ipv6)
+		$(use_with threads)
+		$(use wide-unicode && echo "--enable-unicode=ucs4" || echo "--enable-unicode=ucs2")
+		--infodir='${prefix}/share/info'
+		--mandir='${prefix}/share/man'
+		--with-computed-gotos
+		--with-dbmliborder="${dbmliborder}"
+		--with-libc=
+		--enable-loadable-sqlite-extensions
+		--with-system-expat
+		--with-system-ffi
+		--without-ensurepip
+	)
+
+	OPT="" econf "${myeconfargs[@]}"
+
+	if use threads && grep -q "#define POSIX_SEMAPHORES_NOT_ENABLED 1" pyconfig.h; then
+		eerror "configure has detected that the sem_open function is broken."
+		eerror "Please ensure that /dev/shm is mounted as a tmpfs with mode 1777."
+		die "Broken sem_open function (bug 496328)"
+	fi
+}
+
+src_compile() {
+	# Ensure sed works as expected
+	# https://bugs.gentoo.org/594768
+	local -x LC_ALL=C
+
+	# Avoid invoking pgen for cross-compiles.
+	touch Include/graminit.h Python/graminit.c
+
+	emake
+
+	# Work around bug 329499. See also bug 413751 and 457194.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E python
+	else
+		pax-mark m python
+	fi
+}
+
+src_test() {
+	# Tests will not work when cross compiling.
+	if tc-is-cross-compiler; then
+		elog "Disabling tests due to crosscompiling."
+		return
+	fi
+
+	# Skip failing tests.
+	local skipped_tests="distutils gdb"
+
+	for test in ${skipped_tests}; do
+		mv "${S}"/Lib/test/test_${test}.py "${T}"
+	done
+
+	# bug 660358
+	local -x COLUMNS=80
+
+	# Daylight saving time problem
+	# https://bugs.python.org/issue22067
+	# https://bugs.gentoo.org/610628
+	local -x TZ=UTC
+
+	# Rerun failed tests in verbose mode (regrtest -w).
+	emake test EXTRATESTOPTS="-w" < /dev/tty
+	local result="$?"
+
+	for test in ${skipped_tests}; do
+		mv "${T}/test_${test}.py" "${S}"/Lib/test
+	done
+
+	elog "The following tests have been skipped:"
+	for test in ${skipped_tests}; do
+		elog "test_${test}.py"
+	done
+
+	elog "If you would like to run them, you may:"
+	elog "cd '${EPREFIX}/usr/$(get_libdir)/python${PYVER}/test'"
+	elog "and run the tests separately."
+
+	if [[ ${result} -ne 0 ]]; then
+		die "emake test failed"
+	fi
+}
+
+src_install() {
+	local libdir=${ED}/usr/$(get_libdir)/python${PYVER}
+
+	emake DESTDIR="${D}" altinstall
+
+	sed -e "s/\(LDFLAGS=\).*/\1/" -i "${libdir}/config/Makefile" || die
+
+	# Fix collisions between different slots of Python.
+	mv "${ED}/usr/bin/2to3" "${ED}/usr/bin/2to3-${PYVER}" || die
+	mv "${ED}/usr/bin/pydoc" "${ED}/usr/bin/pydoc${PYVER}" || die
+	mv "${ED}/usr/bin/idle" "${ED}/usr/bin/idle${PYVER}" || die
+	rm "${ED}/usr/bin/smtpd.py" || die
+
+	use berkdb || rm -r "${libdir}/"{bsddb,dbhash.py*,test/test_bsddb*} || die
+	use sqlite || rm -r "${libdir}/"{sqlite3,test/test_sqlite*} || die
+	use tk || rm -r "${ED}/usr/bin/idle${PYVER}" "${libdir}/"{idlelib,lib-tk} || die
+	use elibc_uclibc && rm -fr "${libdir}/"{bsddb/test,test}
+
+	use threads || rm -r "${libdir}/multiprocessing" || die
+	use wininst || rm "${libdir}/distutils/command/"wininst-*.exe || die
+
+	dodoc Misc/{ACKS,HISTORY,NEWS}
+
+	if use examples; then
+		docinto examples
+		dodoc -r Tools
+	fi
+	insinto /usr/share/gdb/auto-load/usr/$(get_libdir) #443510
+	local libname=$(printf 'e:\n\t@echo $(INSTSONAME)\ninclude Makefile\n' | \
+		emake --no-print-directory -s -f - 2>/dev/null)
+	newins "${S}"/Tools/gdb/libpython.py "${libname}"-gdb.py
+
+	newconfd "${FILESDIR}/pydoc.conf" pydoc-${PYVER}
+	newinitd "${FILESDIR}/pydoc.init" pydoc-${PYVER}
+	sed \
+		-e "s:@PYDOC_PORT_VARIABLE@:PYDOC${PYVER/./_}_PORT:" \
+		-e "s:@PYDOC@:pydoc${PYVER}:" \
+		-i "${ED}/etc/conf.d/pydoc-${PYVER}" \
+		"${ED}/etc/init.d/pydoc-${PYVER}" || die "sed failed"
+
+	local -x EPYTHON=python${PYVER}
+	# if not using a cross-compiler, use the fresh binary
+	if ! tc-is-cross-compiler; then
+		local -x PYTHON=./python
+		local -x LD_LIBRARY_PATH=${LD_LIBRARY_PATH+${LD_LIBRARY_PATH}:}${PWD}
+	else
+		local -x PYTHON=${EPREFIX}/usr/bin/${EPYTHON}
+	fi
+
+	echo "EPYTHON='${EPYTHON}'" > epython.py || die
+	python_domodule epython.py
+
+	# python-exec wrapping support
+	local pymajor=${PYVER%.*}
+	local scriptdir=${D}$(python_get_scriptdir)
+	mkdir -p "${scriptdir}" || die
+	# python and pythonX
+	ln -s "../../../bin/python${PYVER}" \
+		"${scriptdir}/python${pymajor}" || die
+	ln -s "python${pymajor}" "${scriptdir}/python" || die
+	# python-config and pythonX-config
+	ln -s "../../../bin/python${PYVER}-config" \
+		"${scriptdir}/python${pymajor}-config" || die
+	ln -s "python${pymajor}-config" \
+		"${scriptdir}/python-config" || die
+	# 2to3, pydoc, pyvenv
+	ln -s "../../../bin/2to3-${PYVER}" \
+		"${scriptdir}/2to3" || die
+	ln -s "../../../bin/pydoc${PYVER}" \
+		"${scriptdir}/pydoc" || die
+	# idle
+	if use tk; then
+		ln -s "../../../bin/idle${PYVER}" \
+			"${scriptdir}/idle" || die
+	fi
+}
+
+eselect_python_update() {
+	if [[ -z "$(eselect python show)" || \
+			! -f "${EROOT}/usr/bin/$(eselect python show)" ]]; then
+		eselect python update
+	fi
+
+	if [[ -z "$(eselect python show --python${PV%%.*})" || \
+			! -f "${EROOT}/usr/bin/$(eselect python show --python${PV%%.*})" ]]
+	then
+		eselect python update --python${PV%%.*}
+	fi
+}
+
+pkg_postinst() {
+	eselect_python_update
+}
+
+pkg_postrm() {
+	eselect_python_update
+}
diff --git a/dev-lang/python/python-3.6.11-r2.ebuild b/dev-lang/python/python-3.6.11-r2.ebuild
new file mode 100644
index 000000000000..823fa8cf986f
--- /dev/null
+++ b/dev-lang/python/python-3.6.11-r2.ebuild
@@ -0,0 +1,357 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="7"
+WANT_LIBTOOL="none"
+
+inherit autotools flag-o-matic pax-utils python-utils-r1 toolchain-funcs
+
+MY_P="Python-${PV}"
+PYVER=$(ver_cut 1-2)
+PATCHSET="python-gentoo-patches-3.6.11-r3"
+
+DESCRIPTION="An interpreted, interactive, object-oriented programming language"
+HOMEPAGE="https://www.python.org/"
+SRC_URI="https://www.python.org/ftp/python/${PV}/${MY_P}.tar.xz
+	https://dev.gentoo.org/~mgorny/dist/python/${PATCHSET}.tar.xz"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="PSF-2"
+SLOT="${PYVER}/${PYVER}m"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86"
+IUSE="bluetooth build examples gdbm hardened ipv6 libressl +ncurses +readline sqlite +ssl test +threads tk wininst +xml"
+RESTRICT="!test? ( test )"
+
+# Do not add a dependency on dev-lang/python to this ebuild.
+# If you need to apply a patch which requires python for bootstrapping, please
+# run the bootstrap code on your dev box and include the results in the
+# patchset. See bug 447752.
+
+RDEPEND="app-arch/bzip2:=
+	app-arch/xz-utils:=
+	dev-libs/libffi:=
+	>=sys-libs/zlib-1.1.3:=
+	virtual/libcrypt:=
+	virtual/libintl
+	gdbm? ( sys-libs/gdbm:=[berkdb] )
+	ncurses? ( >=sys-libs/ncurses-5.2:= )
+	readline? ( >=sys-libs/readline-4.1:= )
+	sqlite? ( >=dev-db/sqlite-3.3.8:3= )
+	ssl? (
+		!libressl? ( dev-libs/openssl:= )
+		libressl? ( dev-libs/libressl:= )
+	)
+	tk? (
+		>=dev-lang/tcl-8.0:=
+		>=dev-lang/tk-8.0:=
+		dev-tcltk/blt:=
+		dev-tcltk/tix
+	)
+	xml? ( >=dev-libs/expat-2.1:= )"
+# bluetooth requires headers from bluez
+DEPEND="${RDEPEND}
+	bluetooth? ( net-wireless/bluez )
+	test? ( app-arch/xz-utils[extra-filters(+)] )
+	virtual/pkgconfig
+	!sys-devel/gcc[libffi(-)]"
+RDEPEND+=" !build? ( app-misc/mime-types )"
+PDEPEND=">=app-eselect/eselect-python-20140125-r1"
+
+src_prepare() {
+	# Ensure that internal copies of expat, libffi and zlib are not used.
+	rm -fr Modules/expat || die
+	rm -fr Modules/_ctypes/libffi* || die
+	rm -fr Modules/zlib || die
+
+	local PATCHES=(
+		"${WORKDIR}/${PATCHSET}"
+	)
+
+	default
+
+	sed -i -e "s:@@GENTOO_LIBDIR@@:$(get_libdir):g" \
+		Lib/distutils/command/install.py \
+		Lib/distutils/sysconfig.py \
+		Lib/site.py \
+		Lib/sysconfig.py \
+		Lib/test/test_site.py \
+		Makefile.pre.in \
+		Modules/Setup.dist \
+		Modules/getpath.c \
+		configure.ac \
+		setup.py || die "sed failed to replace @@GENTOO_LIBDIR@@"
+
+	eautoreconf
+}
+
+src_configure() {
+	local disable
+	# disable automagic bluetooth headers detection
+	use bluetooth || export ac_cv_header_bluetooth_bluetooth_h=no
+	use gdbm      || disable+=" gdbm"
+	use ncurses   || disable+=" _curses _curses_panel"
+	use readline  || disable+=" readline"
+	use sqlite    || disable+=" _sqlite3"
+	use ssl       || export PYTHON_DISABLE_SSL="1"
+	use tk        || disable+=" _tkinter"
+	use xml       || disable+=" _elementtree pyexpat" # _elementtree uses pyexpat.
+	export PYTHON_DISABLE_MODULES="${disable}"
+
+	if ! use xml; then
+		ewarn "You have configured Python without XML support."
+		ewarn "This is NOT a recommended configuration as you"
+		ewarn "may face problems parsing any XML documents."
+	fi
+
+	if [[ -n "${PYTHON_DISABLE_MODULES}" ]]; then
+		einfo "Disabled modules: ${PYTHON_DISABLE_MODULES}"
+	fi
+
+	if [[ "$(gcc-major-version)" -ge 4 ]]; then
+		append-flags -fwrapv
+	fi
+
+	filter-flags -malign-double
+
+	# https://bugs.gentoo.org/show_bug.cgi?id=50309
+	if is-flagq -O3; then
+		is-flagq -fstack-protector-all && replace-flags -O3 -O2
+		use hardened && replace-flags -O3 -O2
+	fi
+
+	# Export CXX so it ends up in /usr/lib/python3.X/config/Makefile.
+	tc-export CXX
+
+	# Set LDFLAGS so we link modules with -lpython3.2 correctly.
+	# Needed on FreeBSD unless Python 3.2 is already installed.
+	# Please query BSD team before removing this!
+	append-ldflags "-L."
+
+	local dbmliborder
+	if use gdbm; then
+		dbmliborder+="${dbmliborder:+:}gdbm"
+	fi
+
+	local myeconfargs=(
+		# glibc-2.30 removes it; since we can't cleanly force-rebuild
+		# Python on glibc upgrade, remove it proactively to give
+		# a chance for users rebuilding python before glibc
+		ac_cv_header_stropts_h=no
+
+		--with-fpectl
+		--enable-shared
+		$(use_enable ipv6)
+		$(use_with threads)
+		--infodir='${prefix}/share/info'
+		--mandir='${prefix}/share/man'
+		--with-computed-gotos
+		--with-dbmliborder="${dbmliborder}"
+		--with-libc=
+		--enable-loadable-sqlite-extensions
+		--without-ensurepip
+		--with-system-expat
+		--with-system-ffi
+	)
+
+	OPT="" econf "${myeconfargs[@]}"
+
+	if use threads && grep -q "#define POSIX_SEMAPHORES_NOT_ENABLED 1" pyconfig.h; then
+		eerror "configure has detected that the sem_open function is broken."
+		eerror "Please ensure that /dev/shm is mounted as a tmpfs with mode 1777."
+		die "Broken sem_open function (bug 496328)"
+	fi
+}
+
+src_compile() {
+	# Ensure sed works as expected
+	# https://bugs.gentoo.org/594768
+	local -x LC_ALL=C
+
+	emake CPPFLAGS= CFLAGS= LDFLAGS=
+
+	# Work around bug 329499. See also bug 413751 and 457194.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E python
+	else
+		pax-mark m python
+	fi
+}
+
+src_test() {
+	# Tests will not work when cross compiling.
+	if tc-is-cross-compiler; then
+		elog "Disabling tests due to crosscompiling."
+		return
+	fi
+
+	# Skip failing tests.
+	local skipped_tests="gdb"
+
+	for test in ${skipped_tests}; do
+		mv "${S}"/Lib/test/test_${test}.py "${T}"
+	done
+
+	# bug 660358
+	local -x COLUMNS=80
+
+	local -x PYTHONDONTWRITEBYTECODE=
+
+	emake test EXTRATESTOPTS="-u-network" CPPFLAGS= CFLAGS= LDFLAGS= < /dev/tty
+	local result=$?
+
+	for test in ${skipped_tests}; do
+		mv "${T}/test_${test}.py" "${S}"/Lib/test
+	done
+
+	elog "The following tests have been skipped:"
+	for test in ${skipped_tests}; do
+		elog "test_${test}.py"
+	done
+
+	elog "If you would like to run them, you may:"
+	elog "cd '${EPREFIX}/usr/$(get_libdir)/python${PYVER}/test'"
+	elog "and run the tests separately."
+
+	if [[ ${result} -ne 0 ]]; then
+		die "emake test failed"
+	fi
+}
+
+src_install() {
+	local libdir=${ED}/usr/$(get_libdir)/python${PYVER}
+
+	emake DESTDIR="${D}" altinstall
+
+	# Remove static library
+	rm "${ED}"/usr/$(get_libdir)/libpython*.a || die
+
+	sed \
+		-e "s/\(CONFIGURE_LDFLAGS=\).*/\1/" \
+		-e "s/\(PY_LDFLAGS=\).*/\1/" \
+		-i "${libdir}/config-${PYVER}"*/Makefile || die "sed failed"
+
+	# Fix collisions between different slots of Python.
+	rm "${ED}/usr/$(get_libdir)/libpython3.so" || die
+
+	# Cheap hack to get version with ABIFLAGS
+	local abiver=$(cd "${ED}/usr/include"; echo python*)
+	if [[ ${abiver} != python${PYVER} ]]; then
+		# Replace python3.X with a symlink to python3.Xm
+		rm "${ED}/usr/bin/python${PYVER}" || die
+		dosym "${abiver}" "/usr/bin/python${PYVER}"
+		# Create python3.X-config symlink
+		dosym "${abiver}-config" "/usr/bin/python${PYVER}-config"
+		# Create python-3.5m.pc symlink
+		dosym "python-${PYVER}.pc" "/usr/$(get_libdir)/pkgconfig/${abiver/${PYVER}/-${PYVER}}.pc"
+	fi
+
+	# python seems to get rebuilt in src_install (bug 569908)
+	# Work around it for now.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E "${ED}/usr/bin/${abiver}"
+	else
+		pax-mark m "${ED}/usr/bin/${abiver}"
+	fi
+
+	use sqlite || rm -r "${libdir}/"{sqlite3,test/test_sqlite*} || die
+	use tk || rm -r "${ED}/usr/bin/idle${PYVER}" "${libdir}/"{idlelib,tkinter,test/test_tk*} || die
+
+	use threads || rm -r "${libdir}/multiprocessing" || die
+	use wininst || rm "${libdir}/distutils/command/"wininst-*.exe || die
+
+	dodoc Misc/{ACKS,HISTORY,NEWS}
+
+	if use examples; then
+		docinto examples
+		find Tools -name __pycache__ -exec rm -fr {} + || die
+		dodoc -r Tools
+	fi
+	insinto /usr/share/gdb/auto-load/usr/$(get_libdir) #443510
+	local libname=$(printf 'e:\n\t@echo $(INSTSONAME)\ninclude Makefile\n' | \
+		emake --no-print-directory -s -f - 2>/dev/null)
+	newins "${S}"/Tools/gdb/libpython.py "${libname}"-gdb.py
+
+	newconfd "${FILESDIR}/pydoc.conf" pydoc-${PYVER}
+	newinitd "${FILESDIR}/pydoc.init" pydoc-${PYVER}
+	sed \
+		-e "s:@PYDOC_PORT_VARIABLE@:PYDOC${PYVER/./_}_PORT:" \
+		-e "s:@PYDOC@:pydoc${PYVER}:" \
+		-i "${ED}/etc/conf.d/pydoc-${PYVER}" \
+		"${ED}/etc/init.d/pydoc-${PYVER}" || die "sed failed"
+
+	local -x EPYTHON=python${PYVER}
+	# if not using a cross-compiler, use the fresh binary
+	if ! tc-is-cross-compiler; then
+		local -x PYTHON=./python
+		local -x LD_LIBRARY_PATH=${LD_LIBRARY_PATH+${LD_LIBRARY_PATH}:}${PWD}
+	else
+		local -x PYTHON=${EPREFIX}/usr/bin/${EPYTHON}
+	fi
+
+	echo "EPYTHON='${EPYTHON}'" > epython.py || die
+	python_domodule epython.py
+
+	# python-exec wrapping support
+	local pymajor=${PYVER%.*}
+	local scriptdir=${D}$(python_get_scriptdir)
+	mkdir -p "${scriptdir}" || die
+	# python and pythonX
+	ln -s "../../../bin/${abiver}" \
+		"${scriptdir}/python${pymajor}" || die
+	ln -s "python${pymajor}" "${scriptdir}/python" || die
+	# python-config and pythonX-config
+	# note: we need to create a wrapper rather than symlinking it due
+	# to some random dirname(argv[0]) magic performed by python-config
+	cat > "${scriptdir}/python${pymajor}-config" <<-EOF || die
+		#!/bin/sh
+		exec "${abiver}-config" "\${@}"
+	EOF
+	chmod +x "${scriptdir}/python${pymajor}-config" || die
+	ln -s "python${pymajor}-config" \
+		"${scriptdir}/python-config" || die
+	# 2to3, pydoc, pyvenv
+	ln -s "../../../bin/2to3-${PYVER}" \
+		"${scriptdir}/2to3" || die
+	ln -s "../../../bin/pydoc${PYVER}" \
+		"${scriptdir}/pydoc" || die
+	ln -s "../../../bin/pyvenv-${PYVER}" \
+		"${scriptdir}/pyvenv" || die
+	# idle
+	if use tk; then
+		ln -s "../../../bin/idle${PYVER}" \
+			"${scriptdir}/idle" || die
+	fi
+}
+
+pkg_preinst() {
+	if has_version "<${CATEGORY}/${PN}-${PYVER}" && ! has_version ">=${CATEGORY}/${PN}-${PYVER}_alpha"; then
+		python_updater_warning="1"
+	fi
+}
+
+eselect_python_update() {
+	if [[ -z "$(eselect python show)" || \
+			! -f "${EROOT}/usr/bin/$(eselect python show)" ]]; then
+		eselect python update
+	fi
+
+	if [[ -z "$(eselect python show --python${PV%%.*})" || \
+			! -f "${EROOT}/usr/bin/$(eselect python show --python${PV%%.*})" ]]
+	then
+		eselect python update --python${PV%%.*}
+	fi
+}
+
+pkg_postinst() {
+	eselect_python_update
+
+	if [[ "${python_updater_warning}" == "1" ]]; then
+		ewarn "You have just upgraded from an older version of Python."
+		ewarn
+		ewarn "Please adjust PYTHON_TARGETS (if so desired), and run emerge with the --newuse or --changed-use option to rebuild packages installing python modules."
+	fi
+}
+
+pkg_postrm() {
+	eselect_python_update
+}
diff --git a/dev-lang/python/python-3.7.8-r2.ebuild b/dev-lang/python/python-3.7.8-r2.ebuild
new file mode 100644
index 000000000000..938eb2e64d64
--- /dev/null
+++ b/dev-lang/python/python-3.7.8-r2.ebuild
@@ -0,0 +1,343 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="7"
+WANT_LIBTOOL="none"
+
+inherit autotools flag-o-matic pax-utils python-utils-r1 toolchain-funcs
+
+MY_P="Python-${PV}"
+PYVER=$(ver_cut 1-2)
+PATCHSET="python-gentoo-patches-3.7.8-r3"
+
+DESCRIPTION="An interpreted, interactive, object-oriented programming language"
+HOMEPAGE="https://www.python.org/"
+SRC_URI="https://www.python.org/ftp/python/${PV}/${MY_P}.tar.xz
+	https://dev.gentoo.org/~mgorny/dist/python/${PATCHSET}.tar.xz"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="PSF-2"
+SLOT="${PYVER}/${PYVER}m"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+IUSE="bluetooth build examples gdbm hardened ipv6 libressl +ncurses +readline sqlite +ssl test tk wininst +xml"
+RESTRICT="!test? ( test )"
+
+# Do not add a dependency on dev-lang/python to this ebuild.
+# If you need to apply a patch which requires python for bootstrapping, please
+# run the bootstrap code on your dev box and include the results in the
+# patchset. See bug 447752.
+
+RDEPEND="app-arch/bzip2:=
+	app-arch/xz-utils:=
+	dev-libs/libffi:=
+	sys-apps/util-linux:=
+	>=sys-libs/zlib-1.1.3:=
+	virtual/libcrypt:=
+	virtual/libintl
+	gdbm? ( sys-libs/gdbm:=[berkdb] )
+	ncurses? ( >=sys-libs/ncurses-5.2:= )
+	readline? ( >=sys-libs/readline-4.1:= )
+	sqlite? ( >=dev-db/sqlite-3.3.8:3= )
+	ssl? (
+		!libressl? ( dev-libs/openssl:= )
+		libressl? ( dev-libs/libressl:= )
+	)
+	tk? (
+		>=dev-lang/tcl-8.0:=
+		>=dev-lang/tk-8.0:=
+		dev-tcltk/blt:=
+		dev-tcltk/tix
+	)
+	xml? ( >=dev-libs/expat-2.1:= )"
+# bluetooth requires headers from bluez
+DEPEND="${RDEPEND}
+	bluetooth? ( net-wireless/bluez )
+	test? ( app-arch/xz-utils[extra-filters(+)] )
+	virtual/pkgconfig
+	!sys-devel/gcc[libffi(-)]"
+RDEPEND+=" !build? ( app-misc/mime-types )"
+PDEPEND=">=app-eselect/eselect-python-20140125-r1"
+
+src_prepare() {
+	# Ensure that internal copies of expat, libffi and zlib are not used.
+	rm -fr Modules/expat || die
+	rm -fr Modules/_ctypes/libffi* || die
+	rm -fr Modules/zlib || die
+
+	local PATCHES=(
+		"${WORKDIR}/${PATCHSET}"
+	)
+
+	default
+
+	sed -i -e "s:@@GENTOO_LIBDIR@@:$(get_libdir):g" \
+		setup.py || die "sed failed to replace @@GENTOO_LIBDIR@@"
+
+	eautoreconf
+}
+
+src_configure() {
+	local disable
+	# disable automagic bluetooth headers detection
+	use bluetooth || export ac_cv_header_bluetooth_bluetooth_h=no
+	use gdbm      || disable+=" gdbm"
+	use ncurses   || disable+=" _curses _curses_panel"
+	use readline  || disable+=" readline"
+	use sqlite    || disable+=" _sqlite3"
+	use ssl       || export PYTHON_DISABLE_SSL="1"
+	use tk        || disable+=" _tkinter"
+	use xml       || disable+=" _elementtree pyexpat" # _elementtree uses pyexpat.
+	export PYTHON_DISABLE_MODULES="${disable}"
+
+	if ! use xml; then
+		ewarn "You have configured Python without XML support."
+		ewarn "This is NOT a recommended configuration as you"
+		ewarn "may face problems parsing any XML documents."
+	fi
+
+	if [[ -n "${PYTHON_DISABLE_MODULES}" ]]; then
+		einfo "Disabled modules: ${PYTHON_DISABLE_MODULES}"
+	fi
+
+	if [[ "$(gcc-major-version)" -ge 4 ]]; then
+		append-flags -fwrapv
+	fi
+
+	filter-flags -malign-double
+
+	# https://bugs.gentoo.org/show_bug.cgi?id=50309
+	if is-flagq -O3; then
+		is-flagq -fstack-protector-all && replace-flags -O3 -O2
+		use hardened && replace-flags -O3 -O2
+	fi
+
+	# Export CXX so it ends up in /usr/lib/python3.X/config/Makefile.
+	tc-export CXX
+
+	# Set LDFLAGS so we link modules with -lpython3.2 correctly.
+	# Needed on FreeBSD unless Python 3.2 is already installed.
+	# Please query BSD team before removing this!
+	append-ldflags "-L."
+
+	# Fix implicit declarations on cross and prefix builds. Bug #674070.
+	use ncurses && append-cppflags -I"${ESYSROOT}"/usr/include/ncursesw
+
+	local dbmliborder
+	if use gdbm; then
+		dbmliborder+="${dbmliborder:+:}gdbm"
+	fi
+
+	local myeconfargs=(
+		# glibc-2.30 removes it; since we can't cleanly force-rebuild
+		# Python on glibc upgrade, remove it proactively to give
+		# a chance for users rebuilding python before glibc
+		ac_cv_header_stropts_h=no
+
+		--enable-shared
+		$(use_enable ipv6)
+		--infodir='${prefix}/share/info'
+		--mandir='${prefix}/share/man'
+		--with-computed-gotos
+		--with-dbmliborder="${dbmliborder}"
+		--with-libc=
+		--enable-loadable-sqlite-extensions
+		--without-ensurepip
+		--with-system-expat
+		--with-system-ffi
+	)
+
+	OPT="" econf "${myeconfargs[@]}"
+}
+
+src_compile() {
+	# Ensure sed works as expected
+	# https://bugs.gentoo.org/594768
+	local -x LC_ALL=C
+
+	emake CPPFLAGS= CFLAGS= LDFLAGS=
+
+	# Work around bug 329499. See also bug 413751 and 457194.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E python
+	else
+		pax-mark m python
+	fi
+}
+
+src_test() {
+	# Tests will not work when cross compiling.
+	if tc-is-cross-compiler; then
+		elog "Disabling tests due to crosscompiling."
+		return
+	fi
+
+	# Skip failing tests.
+	local skipped_tests="gdb"
+
+	for test in ${skipped_tests}; do
+		mv "${S}"/Lib/test/test_${test}.py "${T}"
+	done
+
+	# bug 660358
+	local -x COLUMNS=80
+
+	local -x PYTHONDONTWRITEBYTECODE=
+
+	emake test EXTRATESTOPTS="-u-network" CPPFLAGS= CFLAGS= LDFLAGS= < /dev/tty
+	local result=$?
+
+	for test in ${skipped_tests}; do
+		mv "${T}/test_${test}.py" "${S}"/Lib/test
+	done
+
+	elog "The following tests have been skipped:"
+	for test in ${skipped_tests}; do
+		elog "test_${test}.py"
+	done
+
+	elog "If you would like to run them, you may:"
+	elog "cd '${EPREFIX}/usr/lib/python${PYVER}/test'"
+	elog "and run the tests separately."
+
+	if [[ ${result} -ne 0 ]]; then
+		die "emake test failed"
+	fi
+}
+
+src_install() {
+	local libdir=${ED}/usr/lib/python${PYVER}
+
+	emake DESTDIR="${D}" altinstall
+
+	# Remove static library
+	rm "${ED}"/usr/$(get_libdir)/libpython*.a || die
+
+	sed \
+		-e "s/\(CONFIGURE_LDFLAGS=\).*/\1/" \
+		-e "s/\(PY_LDFLAGS=\).*/\1/" \
+		-i "${libdir}/config-${PYVER}"*/Makefile || die "sed failed"
+
+	# Fix collisions between different slots of Python.
+	rm "${ED}/usr/$(get_libdir)/libpython3.so" || die
+
+	# Cheap hack to get version with ABIFLAGS
+	local abiver=$(cd "${ED}/usr/include"; echo python*)
+	if [[ ${abiver} != python${PYVER} ]]; then
+		# Replace python3.X with a symlink to python3.Xm
+		rm "${ED}/usr/bin/python${PYVER}" || die
+		dosym "${abiver}" "/usr/bin/python${PYVER}"
+		# Create python3.X-config symlink
+		dosym "${abiver}-config" "/usr/bin/python${PYVER}-config"
+		# Create python-3.5m.pc symlink
+		dosym "python-${PYVER}.pc" "/usr/$(get_libdir)/pkgconfig/${abiver/${PYVER}/-${PYVER}}.pc"
+	fi
+
+	# python seems to get rebuilt in src_install (bug 569908)
+	# Work around it for now.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E "${ED}/usr/bin/${abiver}"
+	else
+		pax-mark m "${ED}/usr/bin/${abiver}"
+	fi
+
+	use sqlite || rm -r "${libdir}/"{sqlite3,test/test_sqlite*} || die
+	use tk || rm -r "${ED}/usr/bin/idle${PYVER}" "${libdir}/"{idlelib,tkinter,test/test_tk*} || die
+
+	use wininst || rm "${libdir}/distutils/command/"wininst-*.exe || die
+
+	dodoc Misc/{ACKS,HISTORY,NEWS}
+
+	if use examples; then
+		docinto examples
+		find Tools -name __pycache__ -exec rm -fr {} + || die
+		dodoc -r Tools
+	fi
+	insinto /usr/share/gdb/auto-load/usr/$(get_libdir) #443510
+	local libname=$(printf 'e:\n\t@echo $(INSTSONAME)\ninclude Makefile\n' | \
+		emake --no-print-directory -s -f - 2>/dev/null)
+	newins "${S}"/Tools/gdb/libpython.py "${libname}"-gdb.py
+
+	newconfd "${FILESDIR}/pydoc.conf" pydoc-${PYVER}
+	newinitd "${FILESDIR}/pydoc.init" pydoc-${PYVER}
+	sed \
+		-e "s:@PYDOC_PORT_VARIABLE@:PYDOC${PYVER/./_}_PORT:" \
+		-e "s:@PYDOC@:pydoc${PYVER}:" \
+		-i "${ED}/etc/conf.d/pydoc-${PYVER}" \
+		"${ED}/etc/init.d/pydoc-${PYVER}" || die "sed failed"
+
+	local -x EPYTHON=python${PYVER}
+	# if not using a cross-compiler, use the fresh binary
+	if ! tc-is-cross-compiler; then
+		local -x PYTHON=./python
+		local -x LD_LIBRARY_PATH=${LD_LIBRARY_PATH+${LD_LIBRARY_PATH}:}${PWD}
+	else
+		local -x PYTHON=${EPREFIX}/usr/bin/${EPYTHON}
+	fi
+
+	echo "EPYTHON='${EPYTHON}'" > epython.py || die
+	python_domodule epython.py
+
+	# python-exec wrapping support
+	local pymajor=${PYVER%.*}
+	local scriptdir=${D}$(python_get_scriptdir)
+	mkdir -p "${scriptdir}" || die
+	# python and pythonX
+	ln -s "../../../bin/${abiver}" \
+		"${scriptdir}/python${pymajor}" || die
+	ln -s "python${pymajor}" "${scriptdir}/python" || die
+	# python-config and pythonX-config
+	# note: we need to create a wrapper rather than symlinking it due
+	# to some random dirname(argv[0]) magic performed by python-config
+	cat > "${scriptdir}/python${pymajor}-config" <<-EOF || die
+		#!/bin/sh
+		exec "${abiver}-config" "\${@}"
+	EOF
+	chmod +x "${scriptdir}/python${pymajor}-config" || die
+	ln -s "python${pymajor}-config" \
+		"${scriptdir}/python-config" || die
+	# 2to3, pydoc, pyvenv
+	ln -s "../../../bin/2to3-${PYVER}" \
+		"${scriptdir}/2to3" || die
+	ln -s "../../../bin/pydoc${PYVER}" \
+		"${scriptdir}/pydoc" || die
+	ln -s "../../../bin/pyvenv-${PYVER}" \
+		"${scriptdir}/pyvenv" || die
+	# idle
+	if use tk; then
+		ln -s "../../../bin/idle${PYVER}" \
+			"${scriptdir}/idle" || die
+	fi
+}
+
+pkg_preinst() {
+	if has_version "<${CATEGORY}/${PN}-${PYVER}" && ! has_version ">=${CATEGORY}/${PN}-${PYVER}_alpha"; then
+		python_updater_warning="1"
+	fi
+}
+
+eselect_python_update() {
+	if [[ -z "$(eselect python show)" || \
+			! -f "${EROOT}/usr/bin/$(eselect python show)" ]]; then
+		eselect python update
+	fi
+
+	if [[ -z "$(eselect python show --python${PV%%.*})" || \
+			! -f "${EROOT}/usr/bin/$(eselect python show --python${PV%%.*})" ]]
+	then
+		eselect python update --python${PV%%.*}
+	fi
+}
+
+pkg_postinst() {
+	eselect_python_update
+
+	if [[ "${python_updater_warning}" == "1" ]]; then
+		ewarn "You have just upgraded from an older version of Python."
+		ewarn
+		ewarn "Please adjust PYTHON_TARGETS (if so desired), and run emerge with the --newuse or --changed-use option to rebuild packages installing python modules."
+	fi
+}
+
+pkg_postrm() {
+	eselect_python_update
+}
diff --git a/dev-lang/python/python-3.8.4-r1.ebuild b/dev-lang/python/python-3.8.4-r1.ebuild
new file mode 100644
index 000000000000..0a14b28132fb
--- /dev/null
+++ b/dev-lang/python/python-3.8.4-r1.ebuild
@@ -0,0 +1,346 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="7"
+WANT_LIBTOOL="none"
+
+inherit autotools flag-o-matic pax-utils python-utils-r1 toolchain-funcs
+
+MY_P="Python-${PV}"
+PYVER=$(ver_cut 1-2)
+PATCHSET="python-gentoo-patches-3.8.4-r2"
+
+DESCRIPTION="An interpreted, interactive, object-oriented programming language"
+HOMEPAGE="https://www.python.org/"
+SRC_URI="https://www.python.org/ftp/python/${PV}/${MY_P}.tar.xz
+	https://dev.gentoo.org/~mgorny/dist/python/${PATCHSET}.tar.xz"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="PSF-2"
+SLOT="${PYVER}"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+IUSE="bluetooth build examples gdbm hardened ipv6 libressl +ncurses +readline sqlite +ssl test tk wininst +xml"
+RESTRICT="!test? ( test )"
+
+# Do not add a dependency on dev-lang/python to this ebuild.
+# If you need to apply a patch which requires python for bootstrapping, please
+# run the bootstrap code on your dev box and include the results in the
+# patchset. See bug 447752.
+
+RDEPEND="app-arch/bzip2:=
+	app-arch/xz-utils:=
+	dev-libs/libffi:=
+	sys-apps/util-linux:=
+	>=sys-libs/zlib-1.1.3:=
+	virtual/libcrypt:=
+	virtual/libintl
+	gdbm? ( sys-libs/gdbm:=[berkdb] )
+	ncurses? ( >=sys-libs/ncurses-5.2:= )
+	readline? ( >=sys-libs/readline-4.1:= )
+	sqlite? ( >=dev-db/sqlite-3.3.8:3= )
+	ssl? (
+		!libressl? ( dev-libs/openssl:= )
+		libressl? ( dev-libs/libressl:= )
+	)
+	tk? (
+		>=dev-lang/tcl-8.0:=
+		>=dev-lang/tk-8.0:=
+		dev-tcltk/blt:=
+		dev-tcltk/tix
+	)
+	xml? ( >=dev-libs/expat-2.1:= )"
+# bluetooth requires headers from bluez
+DEPEND="${RDEPEND}
+	bluetooth? ( net-wireless/bluez )
+	test? ( app-arch/xz-utils[extra-filters(+)] )
+	virtual/pkgconfig
+	!sys-devel/gcc[libffi(-)]"
+RDEPEND+=" !build? ( app-misc/mime-types )"
+PDEPEND=">=app-eselect/eselect-python-20140125-r1"
+
+src_prepare() {
+	# Ensure that internal copies of expat, libffi and zlib are not used.
+	rm -fr Modules/expat || die
+	rm -fr Modules/_ctypes/libffi* || die
+	rm -fr Modules/zlib || die
+
+	local PATCHES=(
+		"${WORKDIR}/${PATCHSET}"
+	)
+
+	default
+
+	sed -i -e "s:@@GENTOO_LIBDIR@@:$(get_libdir):g" \
+		setup.py || die "sed failed to replace @@GENTOO_LIBDIR@@"
+
+	eautoreconf
+}
+
+src_configure() {
+	local disable
+	# disable automagic bluetooth headers detection
+	use bluetooth || export ac_cv_header_bluetooth_bluetooth_h=no
+	use gdbm      || disable+=" gdbm"
+	use ncurses   || disable+=" _curses _curses_panel"
+	use readline  || disable+=" readline"
+	use sqlite    || disable+=" _sqlite3"
+	use ssl       || export PYTHON_DISABLE_SSL="1"
+	use tk        || disable+=" _tkinter"
+	use xml       || disable+=" _elementtree pyexpat" # _elementtree uses pyexpat.
+	export PYTHON_DISABLE_MODULES="${disable}"
+
+	if ! use xml; then
+		ewarn "You have configured Python without XML support."
+		ewarn "This is NOT a recommended configuration as you"
+		ewarn "may face problems parsing any XML documents."
+	fi
+
+	if [[ -n "${PYTHON_DISABLE_MODULES}" ]]; then
+		einfo "Disabled modules: ${PYTHON_DISABLE_MODULES}"
+	fi
+
+	if [[ "$(gcc-major-version)" -ge 4 ]]; then
+		append-flags -fwrapv
+	fi
+
+	filter-flags -malign-double
+
+	# https://bugs.gentoo.org/show_bug.cgi?id=50309
+	if is-flagq -O3; then
+		is-flagq -fstack-protector-all && replace-flags -O3 -O2
+		use hardened && replace-flags -O3 -O2
+	fi
+
+	# https://bugs.gentoo.org/700012
+	if is-flagq -flto || is-flagq '-flto=*'; then
+		append-cflags $(test-flags-CC -ffat-lto-objects)
+	fi
+
+	# Export CXX so it ends up in /usr/lib/python3.X/config/Makefile.
+	tc-export CXX
+
+	# Set LDFLAGS so we link modules with -lpython3.2 correctly.
+	# Needed on FreeBSD unless Python 3.2 is already installed.
+	# Please query BSD team before removing this!
+	append-ldflags "-L."
+
+	# Fix implicit declarations on cross and prefix builds. Bug #674070.
+	use ncurses && append-cppflags -I"${ESYSROOT}"/usr/include/ncursesw
+
+	local dbmliborder
+	if use gdbm; then
+		dbmliborder+="${dbmliborder:+:}gdbm"
+	fi
+
+	local myeconfargs=(
+		# glibc-2.30 removes it; since we can't cleanly force-rebuild
+		# Python on glibc upgrade, remove it proactively to give
+		# a chance for users rebuilding python before glibc
+		ac_cv_header_stropts_h=no
+
+		--enable-shared
+		$(use_enable ipv6)
+		--infodir='${prefix}/share/info'
+		--mandir='${prefix}/share/man'
+		--with-computed-gotos
+		--with-dbmliborder="${dbmliborder}"
+		--with-libc=
+		--enable-loadable-sqlite-extensions
+		--without-ensurepip
+		--with-system-expat
+		--with-system-ffi
+	)
+
+	OPT="" econf "${myeconfargs[@]}"
+}
+
+src_compile() {
+	# Ensure sed works as expected
+	# https://bugs.gentoo.org/594768
+	local -x LC_ALL=C
+
+	emake CPPFLAGS= CFLAGS= LDFLAGS=
+
+	# Work around bug 329499. See also bug 413751 and 457194.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E python
+	else
+		pax-mark m python
+	fi
+}
+
+src_test() {
+	# Tests will not work when cross compiling.
+	if tc-is-cross-compiler; then
+		elog "Disabling tests due to crosscompiling."
+		return
+	fi
+
+	# Skip failing tests.
+	local skipped_tests="gdb"
+
+	for test in ${skipped_tests}; do
+		mv "${S}"/Lib/test/test_${test}.py "${T}"
+	done
+
+	# bug 660358
+	local -x COLUMNS=80
+
+	local -x PYTHONDONTWRITEBYTECODE=
+
+	emake test EXTRATESTOPTS="-u-network" CPPFLAGS= CFLAGS= LDFLAGS= < /dev/tty
+	local result=$?
+
+	for test in ${skipped_tests}; do
+		mv "${T}/test_${test}.py" "${S}"/Lib/test
+	done
+
+	elog "The following tests have been skipped:"
+	for test in ${skipped_tests}; do
+		elog "test_${test}.py"
+	done
+
+	elog "If you would like to run them, you may:"
+	elog "cd '${EPREFIX}/usr/lib/python${PYVER}/test'"
+	elog "and run the tests separately."
+
+	if [[ ${result} -ne 0 ]]; then
+		die "emake test failed"
+	fi
+}
+
+src_install() {
+	local libdir=${ED}/usr/lib/python${PYVER}
+
+	emake DESTDIR="${D}" altinstall
+
+	# Remove static library
+	rm "${ED}"/usr/$(get_libdir)/libpython*.a || die
+
+	sed \
+		-e "s/\(CONFIGURE_LDFLAGS=\).*/\1/" \
+		-e "s/\(PY_LDFLAGS=\).*/\1/" \
+		-i "${libdir}/config-${PYVER}"*/Makefile || die "sed failed"
+
+	# Fix collisions between different slots of Python.
+	rm "${ED}/usr/$(get_libdir)/libpython3.so" || die
+
+	# Cheap hack to get version with ABIFLAGS
+	local abiver=$(cd "${ED}/usr/include"; echo python*)
+	if [[ ${abiver} != python${PYVER} ]]; then
+		# Replace python3.X with a symlink to python3.Xm
+		rm "${ED}/usr/bin/python${PYVER}" || die
+		dosym "${abiver}" "/usr/bin/python${PYVER}"
+		# Create python3.X-config symlink
+		dosym "${abiver}-config" "/usr/bin/python${PYVER}-config"
+		# Create python-3.5m.pc symlink
+		dosym "python-${PYVER}.pc" "/usr/$(get_libdir)/pkgconfig/${abiver/${PYVER}/-${PYVER}}.pc"
+	fi
+
+	# python seems to get rebuilt in src_install (bug 569908)
+	# Work around it for now.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E "${ED}/usr/bin/${abiver}"
+	else
+		pax-mark m "${ED}/usr/bin/${abiver}"
+	fi
+
+	use sqlite || rm -r "${libdir}/"{sqlite3,test/test_sqlite*} || die
+	use tk || rm -r "${ED}/usr/bin/idle${PYVER}" "${libdir}/"{idlelib,tkinter,test/test_tk*} || die
+
+	use wininst || rm "${libdir}/distutils/command/"wininst-*.exe || die
+
+	dodoc Misc/{ACKS,HISTORY,NEWS}
+
+	if use examples; then
+		docinto examples
+		find Tools -name __pycache__ -exec rm -fr {} + || die
+		dodoc -r Tools
+	fi
+	insinto /usr/share/gdb/auto-load/usr/$(get_libdir) #443510
+	local libname=$(printf 'e:\n\t@echo $(INSTSONAME)\ninclude Makefile\n' | \
+		emake --no-print-directory -s -f - 2>/dev/null)
+	newins "${S}"/Tools/gdb/libpython.py "${libname}"-gdb.py
+
+	newconfd "${FILESDIR}/pydoc.conf" pydoc-${PYVER}
+	newinitd "${FILESDIR}/pydoc.init" pydoc-${PYVER}
+	sed \
+		-e "s:@PYDOC_PORT_VARIABLE@:PYDOC${PYVER/./_}_PORT:" \
+		-e "s:@PYDOC@:pydoc${PYVER}:" \
+		-i "${ED}/etc/conf.d/pydoc-${PYVER}" \
+		"${ED}/etc/init.d/pydoc-${PYVER}" || die "sed failed"
+
+	local -x EPYTHON=python${PYVER}
+	# if not using a cross-compiler, use the fresh binary
+	if ! tc-is-cross-compiler; then
+		local -x PYTHON=./python
+		local -x LD_LIBRARY_PATH=${LD_LIBRARY_PATH+${LD_LIBRARY_PATH}:}${PWD}
+	else
+		local -x PYTHON=${EPREFIX}/usr/bin/${EPYTHON}
+	fi
+
+	echo "EPYTHON='${EPYTHON}'" > epython.py || die
+	python_domodule epython.py
+
+	# python-exec wrapping support
+	local pymajor=${PYVER%.*}
+	local scriptdir=${D}$(python_get_scriptdir)
+	mkdir -p "${scriptdir}" || die
+	# python and pythonX
+	ln -s "../../../bin/${abiver}" \
+		"${scriptdir}/python${pymajor}" || die
+	ln -s "python${pymajor}" "${scriptdir}/python" || die
+	# python-config and pythonX-config
+	# note: we need to create a wrapper rather than symlinking it due
+	# to some random dirname(argv[0]) magic performed by python-config
+	cat > "${scriptdir}/python${pymajor}-config" <<-EOF || die
+		#!/bin/sh
+		exec "${abiver}-config" "\${@}"
+	EOF
+	chmod +x "${scriptdir}/python${pymajor}-config" || die
+	ln -s "python${pymajor}-config" \
+		"${scriptdir}/python-config" || die
+	# 2to3, pydoc
+	ln -s "../../../bin/2to3-${PYVER}" \
+		"${scriptdir}/2to3" || die
+	ln -s "../../../bin/pydoc${PYVER}" \
+		"${scriptdir}/pydoc" || die
+	# idle
+	if use tk; then
+		ln -s "../../../bin/idle${PYVER}" \
+			"${scriptdir}/idle" || die
+	fi
+}
+
+pkg_preinst() {
+	if has_version "<${CATEGORY}/${PN}-${PYVER}" && ! has_version ">=${CATEGORY}/${PN}-${PYVER}_alpha"; then
+		python_updater_warning="1"
+	fi
+}
+
+eselect_python_update() {
+	if [[ -z "$(eselect python show)" || \
+			! -f "${EROOT}/usr/bin/$(eselect python show)" ]]; then
+		eselect python update
+	fi
+
+	if [[ -z "$(eselect python show --python${PV%%.*})" || \
+			! -f "${EROOT}/usr/bin/$(eselect python show --python${PV%%.*})" ]]
+	then
+		eselect python update --python${PV%%.*}
+	fi
+}
+
+pkg_postinst() {
+	eselect_python_update
+
+	if [[ "${python_updater_warning}" == "1" ]]; then
+		ewarn "You have just upgraded from an older version of Python."
+		ewarn
+		ewarn "Please adjust PYTHON_TARGETS (if so desired), and run emerge with the --newuse or --changed-use option to rebuild packages installing python modules."
+	fi
+}
+
+pkg_postrm() {
+	eselect_python_update
+}
diff --git a/dev-lang/python/python-3.9.0_beta4-r1.ebuild b/dev-lang/python/python-3.9.0_beta4-r1.ebuild
new file mode 100644
index 000000000000..1c5a83a1d9a9
--- /dev/null
+++ b/dev-lang/python/python-3.9.0_beta4-r1.ebuild
@@ -0,0 +1,323 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="7"
+WANT_LIBTOOL="none"
+
+inherit autotools check-reqs flag-o-matic pax-utils python-utils-r1 \
+	toolchain-funcs
+
+MY_P="Python-${PV/_beta/b}"
+PYVER=$(ver_cut 1-2)
+PATCHSET="python-gentoo-patches-3.9.0b4"
+
+DESCRIPTION="An interpreted, interactive, object-oriented programming language"
+HOMEPAGE="https://www.python.org/"
+SRC_URI="https://www.python.org/ftp/python/${PV%_*}/${MY_P}.tar.xz
+	https://dev.gentoo.org/~mgorny/dist/python/${PATCHSET}.tar.xz"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="PSF-2"
+SLOT="${PYVER}"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+IUSE="bluetooth build examples gdbm hardened ipv6 libressl +ncurses +readline sqlite +ssl test tk wininst +xml"
+RESTRICT="!test? ( test )"
+
+# Do not add a dependency on dev-lang/python to this ebuild.
+# If you need to apply a patch which requires python for bootstrapping, please
+# run the bootstrap code on your dev box and include the results in the
+# patchset. See bug 447752.
+
+RDEPEND="app-arch/bzip2:=
+	app-arch/xz-utils:=
+	dev-libs/libffi:=
+	sys-apps/util-linux:=
+	>=sys-libs/zlib-1.1.3:=
+	virtual/libcrypt:=
+	virtual/libintl
+	gdbm? ( sys-libs/gdbm:=[berkdb] )
+	ncurses? ( >=sys-libs/ncurses-5.2:= )
+	readline? ( >=sys-libs/readline-4.1:= )
+	sqlite? ( >=dev-db/sqlite-3.3.8:3= )
+	ssl? (
+		!libressl? ( dev-libs/openssl:= )
+		libressl? ( dev-libs/libressl:= )
+	)
+	tk? (
+		>=dev-lang/tcl-8.0:=
+		>=dev-lang/tk-8.0:=
+		dev-tcltk/blt:=
+		dev-tcltk/tix
+	)
+	xml? ( >=dev-libs/expat-2.1:= )"
+# bluetooth requires headers from bluez
+DEPEND="${RDEPEND}
+	bluetooth? ( net-wireless/bluez )
+	test? ( app-arch/xz-utils[extra-filters(+)] )
+	virtual/pkgconfig
+	!sys-devel/gcc[libffi(-)]"
+RDEPEND+=" !build? ( app-misc/mime-types )"
+PDEPEND=">=app-eselect/eselect-python-20140125-r1"
+
+# large file tests involve a 2.5G file being copied (duplicated)
+CHECKREQS_DISK_BUILD=5500M
+
+pkg_pretend() {
+	use test && check-reqs_pkg_pretend
+}
+
+pkg_setup() {
+	use test && check-reqs_pkg_setup
+}
+
+src_prepare() {
+	# Ensure that internal copies of expat, libffi and zlib are not used.
+	rm -fr Modules/expat || die
+	rm -fr Modules/_ctypes/libffi* || die
+	rm -fr Modules/zlib || die
+
+	local PATCHES=(
+		"${WORKDIR}/${PATCHSET}"
+	)
+
+	default
+
+	sed -i -e "s:@@GENTOO_LIBDIR@@:$(get_libdir):g" \
+		setup.py || die "sed failed to replace @@GENTOO_LIBDIR@@"
+
+	eautoreconf
+}
+
+src_configure() {
+	local disable
+	# disable automagic bluetooth headers detection
+	use bluetooth || export ac_cv_header_bluetooth_bluetooth_h=no
+	use gdbm      || disable+=" gdbm"
+	use ncurses   || disable+=" _curses _curses_panel"
+	use readline  || disable+=" readline"
+	use sqlite    || disable+=" _sqlite3"
+	use ssl       || export PYTHON_DISABLE_SSL="1"
+	use tk        || disable+=" _tkinter"
+	use xml       || disable+=" _elementtree pyexpat" # _elementtree uses pyexpat.
+	export PYTHON_DISABLE_MODULES="${disable}"
+
+	if ! use xml; then
+		ewarn "You have configured Python without XML support."
+		ewarn "This is NOT a recommended configuration as you"
+		ewarn "may face problems parsing any XML documents."
+	fi
+
+	if [[ -n "${PYTHON_DISABLE_MODULES}" ]]; then
+		einfo "Disabled modules: ${PYTHON_DISABLE_MODULES}"
+	fi
+
+	if [[ "$(gcc-major-version)" -ge 4 ]]; then
+		append-flags -fwrapv
+	fi
+
+	filter-flags -malign-double
+
+	# https://bugs.gentoo.org/show_bug.cgi?id=50309
+	if is-flagq -O3; then
+		is-flagq -fstack-protector-all && replace-flags -O3 -O2
+		use hardened && replace-flags -O3 -O2
+	fi
+
+	# https://bugs.gentoo.org/700012
+	if is-flagq -flto || is-flagq '-flto=*'; then
+		append-cflags $(test-flags-CC -ffat-lto-objects)
+	fi
+
+	# Export CXX so it ends up in /usr/lib/python3.X/config/Makefile.
+	tc-export CXX
+
+	# Set LDFLAGS so we link modules with -lpython3.2 correctly.
+	# Needed on FreeBSD unless Python 3.2 is already installed.
+	# Please query BSD team before removing this!
+	append-ldflags "-L."
+
+	# Fix implicit declarations on cross and prefix builds. Bug #674070.
+	use ncurses && append-cppflags -I"${ESYSROOT}"/usr/include/ncursesw
+
+	local dbmliborder
+	if use gdbm; then
+		dbmliborder+="${dbmliborder:+:}gdbm"
+	fi
+
+	local myeconfargs=(
+		# glibc-2.30 removes it; since we can't cleanly force-rebuild
+		# Python on glibc upgrade, remove it proactively to give
+		# a chance for users rebuilding python before glibc
+		ac_cv_header_stropts_h=no
+
+		--enable-shared
+		$(use_enable ipv6)
+		--infodir='${prefix}/share/info'
+		--mandir='${prefix}/share/man'
+		--with-computed-gotos
+		--with-dbmliborder="${dbmliborder}"
+		--with-libc=
+		--enable-loadable-sqlite-extensions
+		--without-ensurepip
+		--with-system-expat
+		--with-system-ffi
+	)
+
+	OPT="" econf "${myeconfargs[@]}"
+}
+
+src_compile() {
+	# Ensure sed works as expected
+	# https://bugs.gentoo.org/594768
+	local -x LC_ALL=C
+
+	emake CPPFLAGS= CFLAGS= LDFLAGS=
+
+	# Work around bug 329499. See also bug 413751 and 457194.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E python
+	else
+		pax-mark m python
+	fi
+}
+
+src_test() {
+	# Tests will not work when cross compiling.
+	if tc-is-cross-compiler; then
+		elog "Disabling tests due to crosscompiling."
+		return
+	fi
+
+	# Skip failing tests.
+	local skipped_tests="gdb"
+
+	for test in ${skipped_tests}; do
+		mv "${S}"/Lib/test/test_${test}.py "${T}"
+	done
+
+	# bug 660358
+	local -x COLUMNS=80
+
+	local -x PYTHONDONTWRITEBYTECODE=
+
+	emake test EXTRATESTOPTS="-u-network" CPPFLAGS= CFLAGS= LDFLAGS= < /dev/tty
+	local result=$?
+
+	for test in ${skipped_tests}; do
+		mv "${T}/test_${test}.py" "${S}"/Lib/test
+	done
+
+	elog "The following tests have been skipped:"
+	for test in ${skipped_tests}; do
+		elog "test_${test}.py"
+	done
+
+	elog "If you would like to run them, you may:"
+	elog "cd '${EPREFIX}/usr/lib/python${PYVER}/test'"
+	elog "and run the tests separately."
+
+	if [[ ${result} -ne 0 ]]; then
+		die "emake test failed"
+	fi
+}
+
+src_install() {
+	local libdir=${ED}/usr/lib/python${PYVER}
+
+	emake DESTDIR="${D}" altinstall
+
+	# Remove static library
+	rm "${ED}"/usr/$(get_libdir)/libpython*.a || die
+
+	sed \
+		-e "s/\(CONFIGURE_LDFLAGS=\).*/\1/" \
+		-e "s/\(PY_LDFLAGS=\).*/\1/" \
+		-i "${libdir}/config-${PYVER}"*/Makefile || die "sed failed"
+
+	# Fix collisions between different slots of Python.
+	rm "${ED}/usr/$(get_libdir)/libpython3.so" || die
+
+	# Cheap hack to get version with ABIFLAGS
+	local abiver=$(cd "${ED}/usr/include"; echo python*)
+	if [[ ${abiver} != python${PYVER} ]]; then
+		# Replace python3.X with a symlink to python3.Xm
+		rm "${ED}/usr/bin/python${PYVER}" || die
+		dosym "${abiver}" "/usr/bin/python${PYVER}"
+		# Create python3.X-config symlink
+		dosym "${abiver}-config" "/usr/bin/python${PYVER}-config"
+		# Create python-3.5m.pc symlink
+		dosym "python-${PYVER}.pc" "/usr/$(get_libdir)/pkgconfig/${abiver/${PYVER}/-${PYVER}}.pc"
+	fi
+
+	# python seems to get rebuilt in src_install (bug 569908)
+	# Work around it for now.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E "${ED}/usr/bin/${abiver}"
+	else
+		pax-mark m "${ED}/usr/bin/${abiver}"
+	fi
+
+	use sqlite || rm -r "${libdir}/"{sqlite3,test/test_sqlite*} || die
+	use tk || rm -r "${ED}/usr/bin/idle${PYVER}" "${libdir}/"{idlelib,tkinter,test/test_tk*} || die
+
+	dodoc Misc/{ACKS,HISTORY,NEWS}
+
+	if use examples; then
+		docinto examples
+		find Tools -name __pycache__ -exec rm -fr {} + || die
+		dodoc -r Tools
+	fi
+	insinto /usr/share/gdb/auto-load/usr/$(get_libdir) #443510
+	local libname=$(printf 'e:\n\t@echo $(INSTSONAME)\ninclude Makefile\n' | \
+		emake --no-print-directory -s -f - 2>/dev/null)
+	newins "${S}"/Tools/gdb/libpython.py "${libname}"-gdb.py
+
+	newconfd "${FILESDIR}/pydoc.conf" pydoc-${PYVER}
+	newinitd "${FILESDIR}/pydoc.init" pydoc-${PYVER}
+	sed \
+		-e "s:@PYDOC_PORT_VARIABLE@:PYDOC${PYVER/./_}_PORT:" \
+		-e "s:@PYDOC@:pydoc${PYVER}:" \
+		-i "${ED}/etc/conf.d/pydoc-${PYVER}" \
+		"${ED}/etc/init.d/pydoc-${PYVER}" || die "sed failed"
+
+	local -x EPYTHON=python${PYVER}
+	# if not using a cross-compiler, use the fresh binary
+	if ! tc-is-cross-compiler; then
+		local -x PYTHON=./python
+		local -x LD_LIBRARY_PATH=${LD_LIBRARY_PATH+${LD_LIBRARY_PATH}:}${PWD}
+	else
+		local -x PYTHON=${EPREFIX}/usr/bin/${EPYTHON}
+	fi
+
+	echo "EPYTHON='${EPYTHON}'" > epython.py || die
+	python_domodule epython.py
+
+	# python-exec wrapping support
+	local pymajor=${PYVER%.*}
+	local scriptdir=${D}$(python_get_scriptdir)
+	mkdir -p "${scriptdir}" || die
+	# python and pythonX
+	ln -s "../../../bin/${abiver}" \
+		"${scriptdir}/python${pymajor}" || die
+	ln -s "python${pymajor}" "${scriptdir}/python" || die
+	# python-config and pythonX-config
+	# note: we need to create a wrapper rather than symlinking it due
+	# to some random dirname(argv[0]) magic performed by python-config
+	cat > "${scriptdir}/python${pymajor}-config" <<-EOF || die
+		#!/bin/sh
+		exec "${abiver}-config" "\${@}"
+	EOF
+	chmod +x "${scriptdir}/python${pymajor}-config" || die
+	ln -s "python${pymajor}-config" \
+		"${scriptdir}/python-config" || die
+	# 2to3, pydoc
+	ln -s "../../../bin/2to3-${PYVER}" \
+		"${scriptdir}/2to3" || die
+	ln -s "../../../bin/pydoc${PYVER}" \
+		"${scriptdir}/pydoc" || die
+	# idle
+	if use tk; then
+		ln -s "../../../bin/idle${PYVER}" \
+			"${scriptdir}/idle" || die
+	fi
+}