[gentoo-commits] proj/python:master commit in: dev-lang/python/files/, dev-lang/python/

[Michał Górny]

commit:     3c967f5bceabf7009d8e866cbba677d0b174d119
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Fri Dec 27 15:44:48 2019 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Fri Dec 27 15:48:19 2019 +0000
URL:        https://gitweb.gentoo.org/proj/python.git/commit/?id=3c967f5b

dev-lang/python: Import 3.5.9 from ::gentoo

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

 dev-lang/python/Manifest                           |   2 +
 .../files/python-3.5-distutils-OO-build.patch      |  80 +++++
 dev-lang/python/python-3.5.9.ebuild                | 367 +++++++++++++++++++++
 3 files changed, 449 insertions(+)

diff --git a/dev-lang/python/Manifest b/dev-lang/python/Manifest
index fe0d951..2de11b4 100644
--- a/dev-lang/python/Manifest
+++ b/dev-lang/python/Manifest
@@ -2,4 +2,6 @@ DIST Python-2.6.9.tar.xz 9333664 SHA256 cae7bb995006ea5b703d9d28446f694894c441fe
 DIST Python-3.2.6.tar.xz 9243292 SHA256 1d12b501819fd26afafbf8459be1aa279b56f032b4c15412de0a713ce0de7bdc SHA512 514b46029dd5b07f2d287a1f00c6716970197186a38e3f2e1ec60c2292cf03a2dc45165ba9c217e5219c7cb6d96a09f790f5b3bdcc8d11db53f927297fe4ddc9 WHIRLPOOL b34f215e0f50123c5b2969e615ffbab99b631433de8f13cbbca525bf57cbc1bb9a159fba02616b3772be9b249be3cec36d6fd1856a678880674b828eb4ab08ed
 DIST Python-3.3.5.tar.xz 12116308 SHA256 abe99b484434503d8b23be0f243ec27139e743a4798cd71c1dce3cf40e63b6e5 SHA512 562ebd85291f29ff18d37f05682763fc45aa9d070688006f4ef5c89392a48022357c3ca9ee1d795e9e863bdef413e6bab77b8d65581d374a76dbe7cacec65550 WHIRLPOOL f4b6010d32b28b7bb038cbb7c5f98d325cc4253fd1be9a0a1089ed6fd7dd414c5169931d21ef819137d5c1084517a650828f260cf2a1d8ce871bc67aeef3fff8
 DIST Python-3.4.10.tar.xz 14559088 SHA256 d46a8f6fe91679e199c671b1b0a30aaf172d2acb5bcab25beb35f16c3d195b4e SHA512 d5d27d68049b61f135e21b12a800dbd4fc521d6935de178de6e2e88a989cda511d3c8fead90d14e38d2db0e528a74b22674e0da01c51ff4fad7d335ec6c3dbbc WHIRLPOOL 84608931cd785eddd234d207be2caa273575067d7687a0ed05217e2f2ae410da684fcf5ed65cfa17dd8eda082844bb4067cdcb4a277ceb20845ffa9f3baa6f58
+DIST Python-3.5.9.tar.xz 15388876 SHA256 c24a37c63a67f53bdd09c5f287b5cff8e8b98f857bf348c577d454d3f74db049 SHA512 58127793adef42ed57ae4d56338268866e14c2d084f09f57f26fc6b1c9454e70cc6d3dffc638f8d56f182acc0884021a4dbb578f312dd6fc01995fa85e31377e WHIRLPOOL 16f4a6938ed1004cbb10a9b60621d70f8e52a36771fbb55cf5fb3211ad98daa2c9cf181789c226d51c4f65cefce056dfff73031f61c1ce35e96e24bd2db186b3
 DIST python-gentoo-patches-3.4.6-0.tar.xz 11728 SHA256 93e7c8487deefc36c612403fb6c82e495c46846a1952f9ed85f82af41840be4a SHA512 41c22dc8f1db8800fc0b97eed2b27bf1873e5de1369bd4aecf7a7a91e609a78e45a4b56fc89d575317f33a7704c0c1cad1494e8a993415a198f256e8338f49ab WHIRLPOOL 851945e7ccea985a88bcbd71bc404bc34c27a0e335386e9ed15fa9876aab3285ff559936fb2dcadf7ac0594a7cb03ac3a9e4135b67b350c5fdf33e9a44ca0654
+DIST python-gentoo-patches-3.5.4-0.tar.xz 11704 SHA256 30c9dbcd5c11ed025b9d8dd201da84c5b9f9756f9b6ba77ccaebc6b79a91e320 SHA512 d395a87695f700598026038d6929ea5038abd7d494294037a4dfa02d5262203dbbaa6ae258a5a7f35ff5542f6266dcf69cc0b9c3df2a047cd2f6699a87e182ec WHIRLPOOL 2191dc89805c1bc11d125005a5c5dd0e5fe635eb0a3d6698bef8b55f54741edc3b3e2588bb21f5eda517963489c15296cd5fd265c8a548d78be6093698e6b002

diff --git a/dev-lang/python/files/python-3.5-distutils-OO-build.patch b/dev-lang/python/files/python-3.5-distutils-OO-build.patch
new file mode 100644
index 0000000..8af8c30
--- /dev/null
+++ b/dev-lang/python/files/python-3.5-distutils-OO-build.patch
@@ -0,0 +1,80 @@
+From 90507018442f9adabb586fd3d0a0206b9c2f2f50 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@g.o>
+Date: Sun, 5 Jun 2016 08:18:01 +0200
+Subject: [PATCH] distutils: make -OO enable both opt-1 and opt-2 optimization
+
+Bug: http://bugs.python.org/issue27226
+Bug: https://bugs.gentoo.org/585060
+---
+ Lib/distutils/command/build_py.py    |  8 ++++----
+ Lib/distutils/command/install_lib.py | 12 ++++++------
+ 2 files changed, 10 insertions(+), 10 deletions(-)
+
+diff --git a/Lib/distutils/command/build_py.py b/Lib/distutils/command/build_py.py
+index cf0ca57..838d4e4 100644
+--- a/Lib/distutils/command/build_py.py
++++ b/Lib/distutils/command/build_py.py
+@@ -315,9 +315,9 @@ class build_py (Command):
+                 if self.compile:
+                     outputs.append(importlib.util.cache_from_source(
+                         filename, optimization=''))
+-                if self.optimize > 0:
++                for opt in range(1, self.optimize + 1):
+                     outputs.append(importlib.util.cache_from_source(
+-                        filename, optimization=self.optimize))
++                        filename, optimization=opt))
+ 
+         outputs += [
+             os.path.join(build_dir, filename)
+@@ -387,8 +387,8 @@ class build_py (Command):
+         if self.compile:
+             byte_compile(files, optimize=0,
+                          force=self.force, prefix=prefix, dry_run=self.dry_run)
+-        if self.optimize > 0:
+-            byte_compile(files, optimize=self.optimize,
++        for opt in range(1, self.optimize + 1):
++            byte_compile(files, optimize=opt,
+                          force=self.force, prefix=prefix, dry_run=self.dry_run)
+ 
+ class build_py_2to3(build_py, Mixin2to3):
+diff --git a/Lib/distutils/command/install_lib.py b/Lib/distutils/command/install_lib.py
+index 6154cf0..049b662 100644
+--- a/Lib/distutils/command/install_lib.py
++++ b/Lib/distutils/command/install_lib.py
+@@ -24,8 +24,8 @@ class install_lib(Command):
+     #   2) compile .pyc only (--compile --no-optimize; default)
+     #   3) compile .pyc and "opt-1" .pyc (--compile --optimize)
+     #   4) compile "opt-1" .pyc only (--no-compile --optimize)
+-    #   5) compile .pyc and "opt-2" .pyc (--compile --optimize-more)
+-    #   6) compile "opt-2" .pyc only (--no-compile --optimize-more)
++    #   5) compile .pyc, "opt-1" and "opt-2" .pyc (--compile --optimize-more)
++    #   6) compile "opt-1" and "opt-2" .pyc (--no-compile --optimize-more)
+     #
+     # The UI for this is two options, 'compile' and 'optimize'.
+     # 'compile' is strictly boolean, and only decides whether to
+@@ -132,8 +132,8 @@ class install_lib(Command):
+             byte_compile(files, optimize=0,
+                          force=self.force, prefix=install_root,
+                          dry_run=self.dry_run)
+-        if self.optimize > 0:
+-            byte_compile(files, optimize=self.optimize,
++        for opt in range(1, self.optimize + 1):
++            byte_compile(files, optimize=opt,
+                          force=self.force, prefix=install_root,
+                          verbose=self.verbose, dry_run=self.dry_run)
+ 
+@@ -167,9 +167,9 @@ class install_lib(Command):
+             if self.compile:
+                 bytecode_files.append(importlib.util.cache_from_source(
+                     py_file, optimization=''))
+-            if self.optimize > 0:
++            for opt in range(1, self.optimize + 1):
+                 bytecode_files.append(importlib.util.cache_from_source(
+-                    py_file, optimization=self.optimize))
++                    py_file, optimization=opt))
+ 
+         return bytecode_files
+ 
+-- 
+2.8.3
+

diff --git a/dev-lang/python/python-3.5.9.ebuild b/dev-lang/python/python-3.5.9.ebuild
new file mode 100644
index 0000000..931cccc
--- /dev/null
+++ b/dev-lang/python/python-3.5.9.ebuild
@@ -0,0 +1,367 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="5"
+WANT_LIBTOOL="none"
+
+inherit autotools eutils flag-o-matic multilib pax-utils python-utils-r1 toolchain-funcs
+
+MY_P="Python-${PV/_/}"
+PATCHSET_VERSION="3.5.4-0"
+
+DESCRIPTION="An interpreted, interactive, object-oriented programming language"
+HOMEPAGE="https://www.python.org/"
+SRC_URI="https://www.python.org/ftp/python/${PV%_rc*}/${MY_P}.tar.xz
+	https://dev.gentoo.org/~floppym/python/python-gentoo-patches-${PATCHSET_VERSION}.tar.xz"
+
+LICENSE="PSF-2"
+SLOT="3.5/3.5m"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86"
+IUSE="bluetooth build elibc_uclibc 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/bzip2:0=
+	app-arch/xz-utils:0=
+	>=sys-libs/zlib-1.1.3:0=
+	virtual/libffi:=
+	virtual/libintl
+	gdbm? ( sys-libs/gdbm:0=[berkdb] )
+	ncurses? ( >=sys-libs/ncurses-5.2:0= )
+	readline? ( >=sys-libs/readline-4.1:0= )
+	sqlite? ( >=dev-db/sqlite-3.3.8:3= )
+	ssl? (
+		!libressl? ( dev-libs/openssl:0= )
+		libressl? ( dev-libs/libressl:0= )
+	)
+	tk? (
+		>=dev-lang/tcl-8.0:0=
+		>=dev-lang/tk-8.0:0=
+		dev-tcltk/blt:0=
+		dev-tcltk/tix
+	)
+	xml? ( >=dev-libs/expat-2.1:0= )"
+# bluetooth requires headers from bluez
+DEPEND="${RDEPEND}
+	bluetooth? ( net-wireless/bluez )
+	virtual/pkgconfig
+	!sys-devel/gcc[libffi(-)]"
+RDEPEND+=" !build? ( app-misc/mime-types )"
+PDEPEND=">=app-eselect/eselect-python-20140125-r1"
+
+S="${WORKDIR}/${MY_P}"
+
+PYVER=${SLOT%/*}
+
+src_prepare() {
+	# Ensure that internal copies of expat, libffi and zlib are not used.
+	rm -fr Modules/expat
+	rm -fr Modules/_ctypes/libffi*
+	rm -fr Modules/zlib
+
+	if tc-is-cross-compiler; then
+		# Invokes BUILDPYTHON, which is built for the host arch
+		local EPATCH_EXCLUDE="*_regenerate_platform-specific_modules.patch"
+	fi
+
+	EPATCH_SUFFIX="patch" epatch "${WORKDIR}/patches"
+	epatch "${FILESDIR}/${PN}-3.4.3-ncurses-pkg-config.patch"
+	epatch "${FILESDIR}/${PN}-3.5-distutils-OO-build.patch"
+	epatch "${FILESDIR}/3.6-disable-nis.patch"
+#	epatch "${FILESDIR}/python-3.5.5-libressl-compatibility.patch"
+	epatch "${FILESDIR}/python-3.5.5-hash-unaligned.patch"
+
+	epatch_user
+
+	sed -i -e "s:@@GENTOO_LIBDIR@@:$(get_libdir):g" \
+		configure.ac \
+		Lib/distutils/command/install.py \
+		Lib/distutils/sysconfig.py \
+		Lib/site.py \
+		Lib/sysconfig.py \
+		Lib/test/test_site.py \
+		Makefile.pre.in \
+		Modules/getpath.c \
+		Modules/Setup.dist \
+		setup.py || die "sed failed to replace @@GENTOO_LIBDIR@@"
+
+	eautoreconf
+}
+
+src_configure() {
+	local disable
+	# disable automagic bluetooth headers detection
+	use bluetooth || export ac_cv_header_bluetooth_bluetooth_h=no
+	use gdbm     || disable+=" gdbm"
+	use ncurses  || disable+=" _curses _curses_panel"
+	use readline || disable+=" readline"
+	use sqlite   || disable+=" _sqlite3"
+	use ssl      || export PYTHON_DISABLE_SSL="1"
+	use tk       || disable+=" _tkinter"
+	use xml      || disable+=" _elementtree pyexpat" # _elementtree uses pyexpat.
+	export PYTHON_DISABLE_MODULES="${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
+
+	# The configure script fails to use pkg-config correctly.
+	# http://bugs.python.org/issue15506
+	export ac_cv_path_PKG_CONFIG=$(tc-getPKG_CONFIG)
+
+	# Set LDFLAGS so we link modules with -lpython3.2 correctly.
+	# Needed on FreeBSD unless Python 3.2 is already installed.
+	# Please query BSD team before removing this!
+	append-ldflags "-L."
+
+	local dbmliborder
+	if use gdbm; then
+		dbmliborder+="${dbmliborder:+:}gdbm"
+	fi
+
+	BUILD_DIR="${WORKDIR}/${CHOST}"
+	mkdir -p "${BUILD_DIR}" || die
+	cd "${BUILD_DIR}" || die
+
+	local myeconfargs=(
+		--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
+	)
+
+	ECONF_SOURCE="${S}" OPT="" econf "${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
+
+	cd "${BUILD_DIR}" || die
+
+	emake CPPFLAGS= CFLAGS= LDFLAGS=
+
+	# Work around bug 329499. See also bug 413751 and 457194.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E python
+	else
+		pax-mark m python
+	fi
+}
+
+src_test() {
+	# Tests will not work when cross compiling.
+	if tc-is-cross-compiler; then
+		elog "Disabling tests due to crosscompiling."
+		return
+	fi
+
+	cd "${BUILD_DIR}" || die
+
+	# Skip failing tests.
+	local skipped_tests="gdb"
+
+	for test in ${skipped_tests}; do
+		mv "${S}"/Lib/test/test_${test}.py "${T}"
+	done
+
+	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}
+
+	cd "${BUILD_DIR}" || die
+
+	emake DESTDIR="${D}" altinstall
+
+	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 -f "${ED}usr/$(get_libdir)/libpython3.so"
+
+	# 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/${abiver}"
+	fi
+
+	use elibc_uclibc && rm -fr "${libdir}/test"
+	use sqlite || rm -fr "${libdir}/"{sqlite3,test/test_sqlite*}
+	use tk || rm -fr "${ED}usr/bin/idle${PYVER}" "${libdir}/"{idlelib,tkinter,test/test_tk*}
+
+	use threads || rm -fr "${libdir}/multiprocessing"
+	use wininst || rm -f "${libdir}/distutils/command/"wininst-*.exe
+
+	dodoc "${S}"/Misc/{ACKS,HISTORY,NEWS}
+
+	if use examples; then
+		docinto examples
+		find "${S}"/Tools -name __pycache__ -print0 | xargs -0 rm -fr
+		dodoc -r "${S}"/Tools
+	fi
+	insinto /usr/share/gdb/auto-load/usr/$(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-${PYVER}" || die "sed failed"
+
+	# for python-exec
+	local vars=( EPYTHON PYTHON_SITEDIR PYTHON_SCRIPTDIR )
+
+	# if not using a cross-compiler, use the fresh binary
+	if ! tc-is-cross-compiler; then
+		local -x PYTHON=./python
+		local -x LD_LIBRARY_PATH=${LD_LIBRARY_PATH+${LD_LIBRARY_PATH}:}${PWD}
+	else
+		vars=( PYTHON "${vars[@]}" )
+	fi
+
+	python_export "python${PYVER}" "${vars[@]}"
+	echo "EPYTHON='${EPYTHON}'" > epython.py || die
+	python_domodule epython.py
+
+	# python-exec wrapping support
+	local pymajor=${PYVER%.*}
+	mkdir -p "${D}${PYTHON_SCRIPTDIR}" || die
+	# python and pythonX
+	ln -s "../../../bin/${abiver}" \
+		"${D}${PYTHON_SCRIPTDIR}/python${pymajor}" || die
+	ln -s "python${pymajor}" \
+		"${D}${PYTHON_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 > "${D}${PYTHON_SCRIPTDIR}/python${pymajor}-config" <<-EOF || die
+		#!/bin/sh
+		exec "${abiver}-config" "\${@}"
+	EOF
+	chmod +x "${D}${PYTHON_SCRIPTDIR}/python${pymajor}-config" || die
+	ln -s "python${pymajor}-config" \
+		"${D}${PYTHON_SCRIPTDIR}/python-config" || die
+	# 2to3, pydoc, pyvenv
+	ln -s "../../../bin/2to3-${PYVER}" \
+		"${D}${PYTHON_SCRIPTDIR}/2to3" || die
+	ln -s "../../../bin/pydoc${PYVER}" \
+		"${D}${PYTHON_SCRIPTDIR}/pydoc" || die
+	ln -s "../../../bin/pyvenv-${PYVER}" \
+		"${D}${PYTHON_SCRIPTDIR}/pyvenv" || die
+	# idle
+	if use tk; then
+		ln -s "../../../bin/idle${PYVER}" \
+			"${D}${PYTHON_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
+}