Import distutils.eclass, python.eclass from Gentoo ebuild repo

1 files changed, 3167 insertions, 0 deletions

diff --git a/eclass/python.eclass b/eclass/python.eclass
new file mode 100644
index 00000000..718c040a
--- /dev/null
+++ b/eclass/python.eclass
@@ -0,0 +1,3167 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+# @DEAD
+# Removal on 2017-03-21.
+
+# @ECLASS: python.eclass
+# @MAINTAINER:
+# kde-sunset overlay maintainers
+# @BLURB: Eclass for Python packages
+# @DESCRIPTION:
+# The python eclass contains miscellaneous, useful functions for Python packages.
+#
+# This eclass is DEPRECATED. Please use python-r1, python-single-r1
+# or python-any-r1 instead.
+
+if [[ ${EAPI} == 6 ]]; then
+	die "${ECLASS}.eclass is banned in EAPI ${EAPI}"
+fi
+
+if [[ ${_PYTHON_UTILS_R1} ]]; then
+	die 'python.eclass can not be used with python-r1 suite eclasses.'
+fi
+
+# Must call inherit before EXPORT_FUNCTIONS to avoid QA warning.
+if [[ -z "${_PYTHON_ECLASS_INHERITED}" ]]; then
+	inherit multilib
+fi
+
+# Export pkg_setup every time to avoid issues with eclass inheritance order.
+if ! has "${EAPI:-0}" 0 1 2 3 || { has "${EAPI:-0}" 2 3 && [[ -n "${PYTHON_USE_WITH}" || -n "${PYTHON_USE_WITH_OR}" ]]; }; then
+	EXPORT_FUNCTIONS pkg_setup
+fi
+
+# Avoid processing this eclass more than once.
+if [[ -z "${_PYTHON_ECLASS_INHERITED}" ]]; then
+_PYTHON_ECLASS_INHERITED="1"
+
+if ! has "${EAPI:-0}" 0 1 2 3 4 5; then
+	die "API of python.eclass in EAPI=\"${EAPI}\" not established"
+fi
+
+# Please do not add any new versions of Python here! Instead, please
+# focus on converting packages to use the new eclasses.
+
+_CPYTHON2_GLOBALLY_SUPPORTED_ABIS=(2.4 2.5 2.6 2.7)
+_CPYTHON3_GLOBALLY_SUPPORTED_ABIS=(3.1 3.2 3.3)
+_JYTHON_GLOBALLY_SUPPORTED_ABIS=(2.5-jython 2.7-jython)
+_PYPY_GLOBALLY_SUPPORTED_ABIS=(2.7-pypy-1.7 2.7-pypy-1.8 2.7-pypy-1.9 2.7-pypy-2.0)
+_PYTHON_GLOBALLY_SUPPORTED_ABIS=(${_CPYTHON2_GLOBALLY_SUPPORTED_ABIS[@]} ${_CPYTHON3_GLOBALLY_SUPPORTED_ABIS[@]} ${_JYTHON_GLOBALLY_SUPPORTED_ABIS[@]} ${_PYPY_GLOBALLY_SUPPORTED_ABIS[@]})
+
+# ================================================================================================
+# ===================================== HANDLING OF METADATA =====================================
+# ================================================================================================
+
+_PYTHON_ABI_PATTERN_REGEX="([[:alnum:]]|\.|-|\*|\[|\])+"
+
+_python_check_python_abi_matching() {
+	local pattern patterns patterns_list="0" PYTHON_ABI
+
+	while (($#)); do
+		case "$1" in
+			--patterns-list)
+				patterns_list="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	if [[ "$#" -ne 2 ]]; then
+		die "${FUNCNAME}() requires 2 arguments"
+	fi
+
+	PYTHON_ABI="$1"
+
+	if [[ "${patterns_list}" == "0" ]]; then
+		pattern="$2"
+
+		if [[ "${pattern}" == *"-cpython" ]]; then
+			[[ "${PYTHON_ABI}" =~ ^[[:digit:]]+\.[[:digit:]]+$ && "${PYTHON_ABI}" == ${pattern%-cpython} ]]
+		elif [[ "${pattern}" == *"-jython" ]]; then
+			[[ "${PYTHON_ABI}" == ${pattern} ]]
+		elif [[ "${pattern}" == *"-pypy-"* ]]; then
+			[[ "${PYTHON_ABI}" == ${pattern} ]]
+		else
+			if [[ "${PYTHON_ABI}" =~ ^[[:digit:]]+\.[[:digit:]]+$ ]]; then
+				[[ "${PYTHON_ABI}" == ${pattern} ]]
+			elif [[ "${PYTHON_ABI}" =~ ^[[:digit:]]+\.[[:digit:]]+-jython$ ]]; then
+				[[ "${PYTHON_ABI%-jython}" == ${pattern} ]]
+			elif [[ "${PYTHON_ABI}" =~ ^[[:digit:]]+\.[[:digit:]]+-pypy-[[:digit:]]+\.[[:digit:]]+$ ]]; then
+				[[ "${PYTHON_ABI%-pypy-*}" == ${pattern} ]]
+			else
+				die "${FUNCNAME}(): Unrecognized Python ABI '${PYTHON_ABI}'"
+			fi
+		fi
+	else
+		patterns="${2// /$'\n'}"
+
+		while read pattern; do
+			if _python_check_python_abi_matching "${PYTHON_ABI}" "${pattern}"; then
+				return 0
+			fi
+		done <<< "${patterns}"
+
+		return 1
+	fi
+}
+
+_python_implementation() {
+	if [[ "${CATEGORY}/${PN}" == "dev-lang/python" ]]; then
+		return 0
+	elif [[ "${CATEGORY}/${PN}" == "dev-java/jython" ]]; then
+		return 0
+	elif [[ "${CATEGORY}/${PN}" == "virtual/pypy" ]]; then
+		return 0
+	else
+		return 1
+	fi
+}
+
+_python_package_supporting_installation_for_multiple_python_abis() {
+	[[ -n "${SUPPORT_PYTHON_ABIS}" ]]
+}
+
+# @ECLASS-VARIABLE: PYTHON_DEPEND
+# @DESCRIPTION:
+# Specification of dependency on dev-lang/python.
+# Syntax:
+#   PYTHON_DEPEND:             [[!]USE_flag? ]<version_components_group>[ version_components_group]
+#   version_components_group:  <major_version[:[minimal_version][:maximal_version]]>
+#   major_version:             <2|3|*>
+#   minimal_version:           <minimal_major_version.minimal_minor_version>
+#   maximal_version:           <maximal_major_version.maximal_minor_version>
+
+_python_parse_PYTHON_DEPEND() {
+	local major_version maximal_version minimal_version python_all="0" python_maximal_version python_minimal_version python_versions=() python2="0" python2_maximal_version python2_minimal_version python3="0" python3_maximal_version python3_minimal_version USE_flag= version_components_group version_components_group_regex version_components_groups
+
+	version_components_group_regex="(2|3|\*)(:([[:digit:]]+\.[[:digit:]]+)?(:([[:digit:]]+\.[[:digit:]]+)?)?)?"
+	version_components_groups="${PYTHON_DEPEND}"
+
+	if [[ "${version_components_groups}" =~ ^((\!)?[[:alnum:]_-]+\?\ )?${version_components_group_regex}(\ ${version_components_group_regex})?$ ]]; then
+		if [[ "${version_components_groups}" =~ ^(\!)?[[:alnum:]_-]+\? ]]; then
+			USE_flag="${version_components_groups%\? *}"
+			version_components_groups="${version_components_groups#* }"
+		fi
+		if [[ "${version_components_groups}" =~ ("*".*" "|" *"|^2.*\ (2|\*)|^3.*\ (3|\*)) ]]; then
+			die "Invalid syntax of PYTHON_DEPEND: Incorrectly specified groups of versions"
+		fi
+
+		version_components_groups="${version_components_groups// /$'\n'}"
+		while read version_components_group; do
+			major_version="${version_components_group:0:1}"
+			minimal_version="${version_components_group:2}"
+			minimal_version="${minimal_version%:*}"
+			maximal_version="${version_components_group:$((3 + ${#minimal_version}))}"
+
+			if [[ "${major_version}" =~ ^(2|3)$ ]]; then
+				if [[ -n "${minimal_version}" && "${major_version}" != "${minimal_version:0:1}" ]]; then
+					die "Invalid syntax of PYTHON_DEPEND: Minimal version '${minimal_version}' not in specified group of versions"
+				fi
+				if [[ -n "${maximal_version}" && "${major_version}" != "${maximal_version:0:1}" ]]; then
+					die "Invalid syntax of PYTHON_DEPEND: Maximal version '${maximal_version}' not in specified group of versions"
+				fi
+			fi
+
+			if [[ "${major_version}" == "2" ]]; then
+				python2="1"
+				python_versions=("${_CPYTHON2_GLOBALLY_SUPPORTED_ABIS[@]}")
+				python2_minimal_version="${minimal_version}"
+				python2_maximal_version="${maximal_version}"
+			elif [[ "${major_version}" == "3" ]]; then
+				python3="1"
+				python_versions=("${_CPYTHON3_GLOBALLY_SUPPORTED_ABIS[@]}")
+				python3_minimal_version="${minimal_version}"
+				python3_maximal_version="${maximal_version}"
+			else
+				python_all="1"
+				python_versions=("${_CPYTHON2_GLOBALLY_SUPPORTED_ABIS[@]}" "${_CPYTHON3_GLOBALLY_SUPPORTED_ABIS[@]}")
+				python_minimal_version="${minimal_version}"
+				python_maximal_version="${maximal_version}"
+			fi
+
+			if [[ -n "${minimal_version}" ]] && ! has "${minimal_version}" "${python_versions[@]}"; then
+				die "Invalid syntax of PYTHON_DEPEND: Unrecognized minimal version '${minimal_version}'"
+			fi
+			if [[ -n "${maximal_version}" ]] && ! has "${maximal_version}" "${python_versions[@]}"; then
+				die "Invalid syntax of PYTHON_DEPEND: Unrecognized maximal version '${maximal_version}'"
+			fi
+
+			if [[ -n "${minimal_version}" && -n "${maximal_version}" && "${minimal_version}" > "${maximal_version}" ]]; then
+				die "Invalid syntax of PYTHON_DEPEND: Minimal version '${minimal_version}' greater than maximal version '${maximal_version}'"
+			fi
+		done <<< "${version_components_groups}"
+
+		_PYTHON_ATOMS=()
+
+		_append_accepted_versions_range() {
+			local accepted_version="0" i
+			for ((i = "${#python_versions[@]}"; i >= 0; i--)); do
+				if [[ "${python_versions[${i}]}" == "${python_maximal_version}" ]]; then
+					accepted_version="1"
+				fi
+				if [[ "${accepted_version}" == "1" ]]; then
+					_PYTHON_ATOMS+=("=dev-lang/python-${python_versions[${i}]}*")
+				fi
+				if [[ "${python_versions[${i}]}" == "${python_minimal_version}" ]]; then
+					accepted_version="0"
+				fi
+			done
+		}
+
+		if [[ "${python_all}" == "1" ]]; then
+			if [[ -z "${python_minimal_version}" && -z "${python_maximal_version}" ]]; then
+				_PYTHON_ATOMS+=("dev-lang/python")
+			else
+				python_versions=("${_CPYTHON2_GLOBALLY_SUPPORTED_ABIS[@]}" "${_CPYTHON3_GLOBALLY_SUPPORTED_ABIS[@]}")
+				python_minimal_version="${python_minimal_version:-${python_versions[0]}}"
+				python_maximal_version="${python_maximal_version:-${python_versions[${#python_versions[@]}-1]}}"
+				_append_accepted_versions_range
+			fi
+		else
+			if [[ "${python3}" == "1" ]]; then
+				if [[ -z "${python3_minimal_version}" && -z "${python3_maximal_version}" ]]; then
+					_PYTHON_ATOMS+=("=dev-lang/python-3*")
+				else
+					python_versions=("${_CPYTHON3_GLOBALLY_SUPPORTED_ABIS[@]}")
+					python_minimal_version="${python3_minimal_version:-${python_versions[0]}}"
+					python_maximal_version="${python3_maximal_version:-${python_versions[${#python_versions[@]}-1]}}"
+					_append_accepted_versions_range
+				fi
+			fi
+			if [[ "${python2}" == "1" ]]; then
+				if [[ -z "${python2_minimal_version}" && -z "${python2_maximal_version}" ]]; then
+					_PYTHON_ATOMS+=("=dev-lang/python-2*")
+				else
+					python_versions=("${_CPYTHON2_GLOBALLY_SUPPORTED_ABIS[@]}")
+					python_minimal_version="${python2_minimal_version:-${python_versions[0]}}"
+					python_maximal_version="${python2_maximal_version:-${python_versions[${#python_versions[@]}-1]}}"
+					_append_accepted_versions_range
+				fi
+			fi
+		fi
+
+		unset -f _append_accepted_versions_range
+
+		if [[ "${#_PYTHON_ATOMS[@]}" -gt 1 ]]; then
+			DEPEND+="${DEPEND:+ }${USE_flag}${USE_flag:+? ( }|| ( ${_PYTHON_ATOMS[@]} )${USE_flag:+ )}"
+			RDEPEND+="${RDEPEND:+ }${USE_flag}${USE_flag:+? ( }|| ( ${_PYTHON_ATOMS[@]} )${USE_flag:+ )}"
+		else
+			DEPEND+="${DEPEND:+ }${USE_flag}${USE_flag:+? ( }${_PYTHON_ATOMS[@]}${USE_flag:+ )}"
+			RDEPEND+="${RDEPEND:+ }${USE_flag}${USE_flag:+? ( }${_PYTHON_ATOMS[@]}${USE_flag:+ )}"
+		fi
+	else
+		die "Invalid syntax of PYTHON_DEPEND"
+	fi
+}
+
+if _python_implementation; then
+	DEPEND=">=app-eselect/eselect-python-20091230"
+	RDEPEND="${DEPEND}"
+	PDEPEND="app-admin/python-updater"
+fi
+
+if [[ -n "${PYTHON_DEPEND}" ]]; then
+	_python_parse_PYTHON_DEPEND
+else
+	_PYTHON_ATOMS=("dev-lang/python")
+fi
+unset -f _python_parse_PYTHON_DEPEND
+
+if [[ -n "${NEED_PYTHON}" ]]; then
+	eerror "Use PYTHON_DEPEND variable instead of NEED_PYTHON variable."
+	die "NEED_PYTHON variable is banned"
+fi
+
+# @ECLASS-VARIABLE: PYTHON_USE_WITH
+# @DESCRIPTION:
+# Set this to a space separated list of USE flags the Python slot in use must be built with.
+
+# @ECLASS-VARIABLE: PYTHON_USE_WITH_OR
+# @DESCRIPTION:
+# Set this to a space separated list of USE flags of which one must be turned on for the slot in use.
+
+# @ECLASS-VARIABLE: PYTHON_USE_WITH_OPT
+# @DESCRIPTION:
+# Set this to a name of a USE flag if you need to make either PYTHON_USE_WITH or
+# PYTHON_USE_WITH_OR atoms conditional under a USE flag.
+
+if ! has "${EAPI:-0}" 0 1 && [[ -n ${PYTHON_USE_WITH} || -n ${PYTHON_USE_WITH_OR} ]]; then
+	_PYTHON_USE_WITH_ATOMS_ARRAY=()
+	if [[ -n "${PYTHON_USE_WITH}" ]]; then
+		for _PYTHON_ATOM in "${_PYTHON_ATOMS[@]}"; do
+			_PYTHON_USE_WITH_ATOMS_ARRAY+=("${_PYTHON_ATOM}[${PYTHON_USE_WITH// /,}]")
+		done
+	elif [[ -n "${PYTHON_USE_WITH_OR}" ]]; then
+		for _USE_flag in ${PYTHON_USE_WITH_OR}; do
+			for _PYTHON_ATOM in "${_PYTHON_ATOMS[@]}"; do
+				_PYTHON_USE_WITH_ATOMS_ARRAY+=("${_PYTHON_ATOM}[${_USE_flag}]")
+			done
+		done
+		unset _USE_flag
+	fi
+	if [[ "${#_PYTHON_USE_WITH_ATOMS_ARRAY[@]}" -gt 1 ]]; then
+		_PYTHON_USE_WITH_ATOMS="|| ( ${_PYTHON_USE_WITH_ATOMS_ARRAY[@]} )"
+	else
+		_PYTHON_USE_WITH_ATOMS="${_PYTHON_USE_WITH_ATOMS_ARRAY[@]}"
+	fi
+	if [[ -n "${PYTHON_USE_WITH_OPT}" ]]; then
+		_PYTHON_USE_WITH_ATOMS="${PYTHON_USE_WITH_OPT}? ( ${_PYTHON_USE_WITH_ATOMS} )"
+	fi
+	DEPEND+="${DEPEND:+ }${_PYTHON_USE_WITH_ATOMS}"
+	RDEPEND+="${RDEPEND:+ }${_PYTHON_USE_WITH_ATOMS}"
+	unset _PYTHON_ATOM _PYTHON_USE_WITH_ATOMS _PYTHON_USE_WITH_ATOMS_ARRAY
+fi
+
+unset _PYTHON_ATOMS
+
+# ================================================================================================
+# =================================== MISCELLANEOUS FUNCTIONS ====================================
+# ================================================================================================
+
+_python_abi-specific_local_scope() {
+	[[ " ${FUNCNAME[@]:2} " =~ " "(_python_final_sanity_checks|python_execute_function|python_mod_optimize|python_mod_cleanup)" " ]]
+}
+
+_python_initialize_prefix_variables() {
+	if has "${EAPI:-0}" 0 1 2; then
+		if [[ -n "${ROOT}" && -z "${EROOT}" ]]; then
+			EROOT="${ROOT%/}${EPREFIX}/"
+		fi
+		if [[ -n "${D}" && -z "${ED}" ]]; then
+			ED="${D%/}${EPREFIX}/"
+		fi
+	fi
+}
+
+unset PYTHON_SANITY_CHECKS_EXECUTED PYTHON_SKIP_SANITY_CHECKS
+
+_python_initial_sanity_checks() {
+	:
+}
+
+_python_final_sanity_checks() {
+	if ! _python_implementation && [[ "$(declare -p PYTHON_SANITY_CHECKS_EXECUTED 2> /dev/null)" != "declare -- PYTHON_SANITY_CHECKS_EXECUTED="* || " ${FUNCNAME[@]:1} " =~ " "(python_set_active_version|python_pkg_setup)" " && -z "${PYTHON_SKIP_SANITY_CHECKS}" ]]; then
+		local PYTHON_ABI="${PYTHON_ABI}"
+		for PYTHON_ABI in ${PYTHON_ABIS-${PYTHON_ABI}}; do
+			# Ensure that appropriate version of Python is installed.
+			if ! has_version "$(python_get_implementational_package)"; then
+				die "$(python_get_implementational_package) is not installed"
+			fi
+
+			# Ensure that EPYTHON variable is respected.
+			if [[ "$(EPYTHON="$(PYTHON)" python -c "${_PYTHON_ABI_EXTRACTION_COMMAND}")" != "${PYTHON_ABI}" ]]; then
+				eerror "Path to 'python':                 '$(type -p python)'"
+				eerror "ABI:                              '${ABI}'"
+				eerror "DEFAULT_ABI:                      '${DEFAULT_ABI}'"
+				eerror "EPYTHON:                          '$(PYTHON)'"
+				eerror "PYTHON_ABI:                       '${PYTHON_ABI}'"
+				eerror "Locally active version of Python: '$(EPYTHON="$(PYTHON)" python -c "${_PYTHON_ABI_EXTRACTION_COMMAND}")'"
+				die "'python' does not respect EPYTHON variable"
+			fi
+		done
+	fi
+	PYTHON_SANITY_CHECKS_EXECUTED="1"
+}
+
+# @ECLASS-VARIABLE: PYTHON_COLORS
+# @DESCRIPTION:
+# User-configurable colored output.
+PYTHON_COLORS="${PYTHON_COLORS:-0}"
+
+_python_set_color_variables() {
+	if [[ "${PYTHON_COLORS}" != "0" && "${NOCOLOR:-false}" =~ ^(false|no)$ ]]; then
+		_BOLD=$'\e[1m'
+		_RED=$'\e[1;31m'
+		_GREEN=$'\e[1;32m'
+		_BLUE=$'\e[1;34m'
+		_CYAN=$'\e[1;36m'
+		_NORMAL=$'\e[0m'
+	else
+		_BOLD=
+		_RED=
+		_GREEN=
+		_BLUE=
+		_CYAN=
+		_NORMAL=
+	fi
+}
+
+_python_check_python_pkg_setup_execution() {
+	[[ " ${FUNCNAME[@]:1} " =~ " "(python_set_active_version|python_pkg_setup)" " ]] && return
+
+	if ! has "${EAPI:-0}" 0 1 2 3 && [[ -z "${PYTHON_PKG_SETUP_EXECUTED}" ]]; then
+		die "python_pkg_setup() not called"
+	fi
+}
+
+# @FUNCTION: python_pkg_setup
+# @DESCRIPTION:
+# Perform sanity checks and initialize environment.
+#
+# This function is exported in EAPI 2 and 3 when PYTHON_USE_WITH or PYTHON_USE_WITH_OR variable
+# is set and always in EAPI >=4. Calling of this function is mandatory in EAPI >=4.
+python_pkg_setup() {
+	if [[ "${EBUILD_PHASE}" != "setup" ]]; then
+		die "${FUNCNAME}() can be used only in pkg_setup() phase"
+	fi
+
+	if [[ "$#" -ne 0 ]]; then
+		die "${FUNCNAME}() does not accept arguments"
+	fi
+
+	export JYTHON_SYSTEM_CACHEDIR="1"
+	addwrite "${EPREFIX}/var/cache/jython"
+
+	if _python_package_supporting_installation_for_multiple_python_abis; then
+		_python_calculate_PYTHON_ABIS
+		export EPYTHON="$(PYTHON -f)"
+	else
+		PYTHON_ABI="${PYTHON_ABI:-$(PYTHON --ABI)}"
+	fi
+
+	if ! has "${EAPI:-0}" 0 1 && [[ -n "${PYTHON_USE_WITH}" || -n "${PYTHON_USE_WITH_OR}" ]]; then
+		if [[ "${PYTHON_USE_WITH_OPT}" ]]; then
+			if [[ "${PYTHON_USE_WITH_OPT}" == !* ]]; then
+				use ${PYTHON_USE_WITH_OPT#!} && return
+			else
+				use !${PYTHON_USE_WITH_OPT} && return
+			fi
+		fi
+
+		python_pkg_setup_check_USE_flags() {
+			local python_atom USE_flag
+			python_atom="$(python_get_implementational_package)"
+
+			for USE_flag in ${PYTHON_USE_WITH}; do
+				if ! has_version "${python_atom}[${USE_flag}]"; then
+					eerror "Please rebuild ${python_atom} with the following USE flags enabled: ${PYTHON_USE_WITH}"
+					die "Please rebuild ${python_atom} with the following USE flags enabled: ${PYTHON_USE_WITH}"
+				fi
+			done
+
+			for USE_flag in ${PYTHON_USE_WITH_OR}; do
+				if has_version "${python_atom}[${USE_flag}]"; then
+					return
+				fi
+			done
+
+			if [[ ${PYTHON_USE_WITH_OR} ]]; then
+				eerror "Please rebuild ${python_atom} with at least one of the following USE flags enabled: ${PYTHON_USE_WITH_OR}"
+				die "Please rebuild ${python_atom} with at least one of the following USE flags enabled: ${PYTHON_USE_WITH_OR}"
+			fi
+		}
+
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			PYTHON_SKIP_SANITY_CHECKS="1" python_execute_function -q python_pkg_setup_check_USE_flags
+		else
+			python_pkg_setup_check_USE_flags
+		fi
+
+		unset -f python_pkg_setup_check_USE_flags
+	fi
+
+	PYTHON_PKG_SETUP_EXECUTED="1"
+}
+
+_PYTHON_SHEBANG_BASE_PART_REGEX='^#![[:space:]]*([^[:space:]]*/usr/bin/env[[:space:]]+)?([^[:space:]]*/)?(jython|pypy-c|python)'
+
+# @FUNCTION: python_convert_shebangs
+# @USAGE: [-q|--quiet] [-r|--recursive] [-x|--only-executables] [--] <Python_ABI|Python_version> <file|directory> [files|directories]
+# @DESCRIPTION:
+# Convert shebangs in specified files. Directories can be specified only with --recursive option.
+python_convert_shebangs() {
+	_python_check_python_pkg_setup_execution
+
+	local argument file files=() only_executables="0" python_interpreter quiet="0" recursive="0" shebangs_converted="0"
+
+	while (($#)); do
+		case "$1" in
+			-r|--recursive)
+				recursive="1"
+				;;
+			-q|--quiet)
+				quiet="1"
+				;;
+			-x|--only-executables)
+				only_executables="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	if [[ "$#" -eq 0 ]]; then
+		die "${FUNCNAME}(): Missing Python version and files or directories"
+	elif [[ "$#" -eq 1 ]]; then
+		die "${FUNCNAME}(): Missing files or directories"
+	fi
+
+	if [[ -n "$(_python_get_implementation --ignore-invalid "$1")" ]]; then
+		python_interpreter="$(PYTHON "$1")"
+	else
+		python_interpreter="python$1"
+	fi
+	shift
+
+	for argument in "$@"; do
+		if [[ ! -e "${argument}" ]]; then
+			die "${FUNCNAME}(): '${argument}' does not exist"
+		elif [[ -f "${argument}" ]]; then
+			files+=("${argument}")
+		elif [[ -d "${argument}" ]]; then
+			if [[ "${recursive}" == "1" ]]; then
+				while read -d $'\0' -r file; do
+					files+=("${file}")
+				done < <(find "${argument}" $([[ "${only_executables}" == "1" ]] && echo -perm /111) -type f -print0)
+			else
+				die "${FUNCNAME}(): '${argument}' is not a regular file"
+			fi
+		else
+			die "${FUNCNAME}(): '${argument}' is not a regular file or a directory"
+		fi
+	done
+
+	for file in "${files[@]}"; do
+		file="${file#./}"
+		[[ "${only_executables}" == "1" && ! -x "${file}" ]] && continue
+
+		if [[ "$(head -n1 "${file}")" =~ ${_PYTHON_SHEBANG_BASE_PART_REGEX} ]]; then
+			[[ "$(sed -ne "2p" "${file}")" =~ ^"# Gentoo '".*"' wrapper script generated by python_generate_wrapper_scripts()"$ ]] && continue
+
+			shebangs_converted="1"
+
+			if [[ "${quiet}" == "0" ]]; then
+				einfo "Converting shebang in '${file}'"
+			fi
+
+			sed -e "1s:^#![[:space:]]*\([^[:space:]]*/usr/bin/env[[:space:]]\)\?[[:space:]]*\([^[:space:]]*/\)\?\(jython\|pypy-c\|python\)\([[:digit:]]\+\(\.[[:digit:]]\+\)\?\)\?\(\$\|[[:space:]].*\):#!\1\2${python_interpreter}\6:" -i "${file}" || die "Conversion of shebang in '${file}' failed"
+		fi
+	done
+
+	if [[ "${shebangs_converted}" == "0" ]]; then
+		ewarn "${FUNCNAME}(): Python scripts not found"
+	fi
+}
+
+# @FUNCTION: python_clean_py-compile_files
+# @USAGE: [-q|--quiet]
+# @DESCRIPTION:
+# Clean py-compile files to disable byte-compilation.
+python_clean_py-compile_files() {
+	_python_check_python_pkg_setup_execution
+
+	local file files=() quiet="0"
+
+	while (($#)); do
+		case "$1" in
+			-q|--quiet)
+				quiet="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	while read -d $'\0' -r file; do
+		files+=("${file#./}")
+	done < <(find -name py-compile -type f -print0)
+
+	for file in "${files[@]}"; do
+		if [[ "${quiet}" == "0" ]]; then
+			einfo "Cleaning '${file}' file"
+		fi
+		echo "#!/bin/sh" > "${file}"
+	done
+}
+
+# @FUNCTION: python_clean_installation_image
+# @USAGE: [-q|--quiet]
+# @DESCRIPTION:
+# Delete needless files in installation image.
+#
+# This function can be used only in src_install() phase.
+python_clean_installation_image() {
+	if [[ "${EBUILD_PHASE}" != "install" ]]; then
+		die "${FUNCNAME}() can be used only in src_install() phase"
+	fi
+
+	_python_check_python_pkg_setup_execution
+	_python_initialize_prefix_variables
+
+	local file files=() quiet="0"
+
+	while (($#)); do
+		case "$1" in
+			-q|--quiet)
+				quiet="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	while read -d $'\0' -r file; do
+		files+=("${file}")
+	done < <(find "${ED}" "(" -name "*.py[co]" -o -name "*\$py.class" ")" -type f -print0)
+
+	if [[ "${#files[@]}" -gt 0 ]]; then
+		if [[ "${quiet}" == "0" ]]; then
+			ewarn "Deleting byte-compiled Python modules needlessly generated by build system:"
+		fi
+		for file in "${files[@]}"; do
+			if [[ "${quiet}" == "0" ]]; then
+				ewarn " ${file}"
+			fi
+			rm -f "${file}"
+
+			# Delete empty __pycache__ directories.
+			if [[ "${file%/*}" == *"/__pycache__" ]]; then
+				rmdir "${file%/*}" 2> /dev/null
+			fi
+		done
+	fi
+
+	python_clean_sitedirs() {
+		if [[ -d "${ED}$(python_get_sitedir)" ]]; then
+			find "${ED}$(python_get_sitedir)" "(" -name "*.c" -o -name "*.h" -o -name "*.la" ")" -type f -print0 | xargs -0 rm -f
+		fi
+	}
+	if _python_package_supporting_installation_for_multiple_python_abis; then
+		python_execute_function -q python_clean_sitedirs
+	else
+		python_clean_sitedirs
+	fi
+
+	unset -f python_clean_sitedirs
+}
+
+# ================================================================================================
+# =========== FUNCTIONS FOR PACKAGES SUPPORTING INSTALLATION FOR MULTIPLE PYTHON ABIS ============
+# ================================================================================================
+
+# @ECLASS-VARIABLE: SUPPORT_PYTHON_ABIS
+# @DESCRIPTION:
+# Set this in EAPI <= 4 to indicate that current package supports installation for
+# multiple Python ABIs.
+
+# @ECLASS-VARIABLE: PYTHON_TESTS_RESTRICTED_ABIS
+# @DESCRIPTION:
+# Space-separated list of Python ABI patterns. Testing in Python ABIs matching any Python ABI
+# patterns specified in this list is skipped.
+
+# @ECLASS-VARIABLE: PYTHON_EXPORT_PHASE_FUNCTIONS
+# @DESCRIPTION:
+# Set this to export phase functions for the following ebuild phases:
+# src_prepare(), src_configure(), src_compile(), src_test(), src_install().
+if ! has "${EAPI:-0}" 0 1; then
+	python_src_prepare() {
+		if [[ "${EBUILD_PHASE}" != "prepare" ]]; then
+			die "${FUNCNAME}() can be used only in src_prepare() phase"
+		fi
+
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}() cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+
+		_python_check_python_pkg_setup_execution
+
+		if [[ "$#" -ne 0 ]]; then
+			die "${FUNCNAME}() does not accept arguments"
+		fi
+
+		python_copy_sources
+	}
+
+	for python_default_function in src_configure src_compile src_test; do
+		eval "python_${python_default_function}() {
+			if [[ \"\${EBUILD_PHASE}\" != \"${python_default_function#src_}\" ]]; then
+				die \"\${FUNCNAME}() can be used only in ${python_default_function}() phase\"
+			fi
+
+			if ! _python_package_supporting_installation_for_multiple_python_abis; then
+				die \"\${FUNCNAME}() cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs\"
+			fi
+
+			_python_check_python_pkg_setup_execution
+
+			python_execute_function -d -s -- \"\$@\"
+		}"
+	done
+	unset python_default_function
+
+	python_src_install() {
+		if [[ "${EBUILD_PHASE}" != "install" ]]; then
+			die "${FUNCNAME}() can be used only in src_install() phase"
+		fi
+
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}() cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+
+		_python_check_python_pkg_setup_execution
+
+		if has "${EAPI:-0}" 0 1 2 3; then
+			python_execute_function -d -s -- "$@"
+		else
+			python_installation() {
+				emake DESTDIR="${T}/images/${PYTHON_ABI}" install "$@"
+			}
+			python_execute_function -s python_installation "$@"
+			unset python_installation
+
+			python_merge_intermediate_installation_images "${T}/images"
+		fi
+	}
+
+	if [[ -n "${PYTHON_EXPORT_PHASE_FUNCTIONS}" ]]; then
+		EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test src_install
+	fi
+fi
+
+unset PYTHON_ABIS
+
+_python_calculate_PYTHON_ABIS() {
+	if ! _python_package_supporting_installation_for_multiple_python_abis; then
+		die "${FUNCNAME}() cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+	fi
+
+	_python_initial_sanity_checks
+
+	if [[ "$(declare -p PYTHON_ABIS 2> /dev/null)" != "declare -x PYTHON_ABIS="* ]]; then
+		local PYTHON_ABI
+
+		if [[ "$(declare -p USE_PYTHON 2> /dev/null)" == "declare -x USE_PYTHON="* ]]; then
+			local cpython_enabled="0"
+
+			if [[ -z "${USE_PYTHON}" ]]; then
+				die "USE_PYTHON variable is empty"
+			fi
+
+			for PYTHON_ABI in ${USE_PYTHON}; do
+				if ! has "${PYTHON_ABI}" "${_PYTHON_GLOBALLY_SUPPORTED_ABIS[@]}"; then
+					die "USE_PYTHON variable contains invalid value '${PYTHON_ABI}'"
+				fi
+
+				if has "${PYTHON_ABI}" "${_CPYTHON2_GLOBALLY_SUPPORTED_ABIS[@]}" "${_CPYTHON3_GLOBALLY_SUPPORTED_ABIS[@]}"; then
+					cpython_enabled="1"
+				fi
+
+				if ! _python_check_python_abi_matching --patterns-list "${PYTHON_ABI}" "${RESTRICT_PYTHON_ABIS}"; then
+					export PYTHON_ABIS+="${PYTHON_ABIS:+ }${PYTHON_ABI}"
+				fi
+			done
+
+			if [[ -z "${PYTHON_ABIS//[${IFS}]/}" ]]; then
+				die "USE_PYTHON variable does not enable any Python ABI supported by ${CATEGORY}/${PF}"
+			fi
+
+			if [[ "${cpython_enabled}" == "0" ]]; then
+				die "USE_PYTHON variable does not enable any CPython ABI"
+			fi
+		else
+			local python_version python2_version python3_version support_python_major_version
+
+			if ! has_version "dev-lang/python"; then
+				die "${FUNCNAME}(): 'dev-lang/python' is not installed"
+			fi
+
+			python_version="$("${EPREFIX}/usr/bin/python" -c 'from sys import version_info; print(".".join(str(x) for x in version_info[:2]))')"
+
+			if has_version "=dev-lang/python-2*"; then
+				python2_version="$("${EPREFIX}/usr/bin/python2" -c 'from sys import version_info; print(".".join(str(x) for x in version_info[:2]))')"
+
+				support_python_major_version="0"
+				for PYTHON_ABI in "${_CPYTHON2_GLOBALLY_SUPPORTED_ABIS[@]}"; do
+					if ! _python_check_python_abi_matching --patterns-list "${PYTHON_ABI}" "${RESTRICT_PYTHON_ABIS}"; then
+						support_python_major_version="1"
+						break
+					fi
+				done
+				if [[ "${support_python_major_version}" == "1" ]]; then
+					if _python_check_python_abi_matching --patterns-list "${python2_version}" "${RESTRICT_PYTHON_ABIS}"; then
+						die "Active version of CPython 2 is not supported by ${CATEGORY}/${PF}"
+					fi
+				else
+					python2_version=""
+				fi
+			fi
+
+			if has_version "=dev-lang/python-3*"; then
+				python3_version="$("${EPREFIX}/usr/bin/python3" -c 'from sys import version_info; print(".".join(str(x) for x in version_info[:2]))')"
+
+				support_python_major_version="0"
+				for PYTHON_ABI in "${_CPYTHON3_GLOBALLY_SUPPORTED_ABIS[@]}"; do
+					if ! _python_check_python_abi_matching --patterns-list "${PYTHON_ABI}" "${RESTRICT_PYTHON_ABIS}"; then
+						support_python_major_version="1"
+						break
+					fi
+				done
+				if [[ "${support_python_major_version}" == "1" ]]; then
+					if _python_check_python_abi_matching --patterns-list "${python3_version}" "${RESTRICT_PYTHON_ABIS}"; then
+						die "Active version of CPython 3 is not supported by ${CATEGORY}/${PF}"
+					fi
+				else
+					python3_version=""
+				fi
+			fi
+
+			if [[ -z "${python2_version}" && -z "${python3_version}" ]]; then
+				eerror "${CATEGORY}/${PF} requires at least one of the following packages:"
+				for PYTHON_ABI in "${_CPYTHON2_GLOBALLY_SUPPORTED_ABIS[@]}" "${_CPYTHON3_GLOBALLY_SUPPORTED_ABIS[@]}"; do
+					if ! _python_check_python_abi_matching --patterns-list "${PYTHON_ABI}" "${RESTRICT_PYTHON_ABIS}"; then
+						eerror "    dev-lang/python:${PYTHON_ABI}"
+					fi
+				done
+				die "No supported version of CPython installed"
+			fi
+
+			if [[ -n "${python2_version}" && "${python_version}" == "2."* && "${python_version}" != "${python2_version}" ]]; then
+				eerror "Python wrapper is configured incorrectly or '${EPREFIX}/usr/bin/python2' symlink"
+				eerror "is set incorrectly. Use \`eselect python\` to fix configuration."
+				die "Incorrect configuration of Python"
+			fi
+			if [[ -n "${python3_version}" && "${python_version}" == "3."* && "${python_version}" != "${python3_version}" ]]; then
+				eerror "Python wrapper is configured incorrectly or '${EPREFIX}/usr/bin/python3' symlink"
+				eerror "is set incorrectly. Use \`eselect python\` to fix configuration."
+				die "Incorrect configuration of Python"
+			fi
+
+			PYTHON_ABIS="${python2_version} ${python3_version}"
+			PYTHON_ABIS="${PYTHON_ABIS# }"
+			export PYTHON_ABIS="${PYTHON_ABIS% }"
+		fi
+	fi
+
+	_python_final_sanity_checks
+}
+
+_python_prepare_flags() {
+	local array=() deleted_flag element flags new_value old_flag old_value operator pattern prefix variable
+
+	for variable in CPPFLAGS CFLAGS CXXFLAGS LDFLAGS; do
+		eval "_PYTHON_SAVED_${variable}=\"\${!variable}\""
+		for prefix in PYTHON_USER_ PYTHON_; do
+			if [[ "$(declare -p ${prefix}${variable} 2> /dev/null)" == "declare -a ${prefix}${variable}="* ]]; then
+				eval "array=(\"\${${prefix}${variable}[@]}\")"
+				for element in "${array[@]}"; do
+					if [[ "${element}" =~ ^${_PYTHON_ABI_PATTERN_REGEX}\ (\+|-)\ .+ ]]; then
+						pattern="${element%% *}"
+						element="${element#* }"
+						operator="${element%% *}"
+						flags="${element#* }"
+						if _python_check_python_abi_matching "${PYTHON_ABI}" "${pattern}"; then
+							if [[ "${operator}" == "+" ]]; then
+								eval "export ${variable}+=\"\${variable:+ }${flags}\""
+							elif [[ "${operator}" == "-" ]]; then
+								flags="${flags// /$'\n'}"
+								old_value="${!variable// /$'\n'}"
+								new_value=""
+								while read old_flag; do
+									while read deleted_flag; do
+										if [[ "${old_flag}" == ${deleted_flag} ]]; then
+											continue 2
+										fi
+									done <<< "${flags}"
+									new_value+="${new_value:+ }${old_flag}"
+								done <<< "${old_value}"
+								eval "export ${variable}=\"\${new_value}\""
+							fi
+						fi
+					else
+						die "Element '${element}' of ${prefix}${variable} array has invalid syntax"
+					fi
+				done
+			elif [[ -n "$(declare -p ${prefix}${variable} 2> /dev/null)" ]]; then
+				die "${prefix}${variable} should be indexed array"
+			fi
+		done
+	done
+}
+
+_python_restore_flags() {
+	local variable
+
+	for variable in CPPFLAGS CFLAGS CXXFLAGS LDFLAGS; do
+		eval "${variable}=\"\${_PYTHON_SAVED_${variable}}\""
+		unset _PYTHON_SAVED_${variable}
+	done
+}
+
+# @FUNCTION: python_execute_function
+# @USAGE: [--action-message message] [-d|--default-function] [--failure-message message] [-f|--final-ABI] [--nonfatal] [-q|--quiet] [-s|--separate-build-dirs] [--source-dir source_directory] [--] <function> [arguments]
+# @DESCRIPTION:
+# Execute specified function for each value of PYTHON_ABIS, optionally passing additional
+# arguments. The specified function can use PYTHON_ABI and BUILDDIR variables.
+python_execute_function() {
+	if ! _python_package_supporting_installation_for_multiple_python_abis; then
+		die "${FUNCNAME}() cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+	fi
+
+	_python_check_python_pkg_setup_execution
+	_python_set_color_variables
+
+	local action action_message action_message_template default_function="0" failure_message failure_message_template final_ABI="0" function iterated_PYTHON_ABIS nonfatal="0" previous_directory previous_directory_stack previous_directory_stack_length PYTHON_ABI quiet="0" return_code separate_build_dirs="0" source_dir
+
+	while (($#)); do
+		case "$1" in
+			--action-message)
+				action_message_template="$2"
+				shift
+				;;
+			-d|--default-function)
+				default_function="1"
+				;;
+			--failure-message)
+				failure_message_template="$2"
+				shift
+				;;
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			--nonfatal)
+				nonfatal="1"
+				;;
+			-q|--quiet)
+				quiet="1"
+				;;
+			-s|--separate-build-dirs)
+				separate_build_dirs="1"
+				;;
+			--source-dir)
+				source_dir="$2"
+				shift
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	if [[ -n "${source_dir}" && "${separate_build_dirs}" == 0 ]]; then
+		die "${FUNCNAME}(): '--source-dir' option can be specified only with '--separate-build-dirs' option"
+	fi
+
+	if [[ "${default_function}" == "0" ]]; then
+		if [[ "$#" -eq 0 ]]; then
+			die "${FUNCNAME}(): Missing function name"
+		fi
+		function="$1"
+		shift
+
+		if [[ -z "$(type -t "${function}")" ]]; then
+			die "${FUNCNAME}(): '${function}' function is not defined"
+		fi
+	else
+		if has "${EAPI:-0}" 0 1; then
+			die "${FUNCNAME}(): '--default-function' option cannot be used in this EAPI"
+		fi
+
+		if [[ "${EBUILD_PHASE}" == "configure" ]]; then
+			if has "${EAPI}" 2 3; then
+				python_default_function() {
+					econf "$@"
+				}
+			else
+				python_default_function() {
+					nonfatal econf "$@"
+				}
+			fi
+		elif [[ "${EBUILD_PHASE}" == "compile" ]]; then
+			python_default_function() {
+				emake "$@"
+			}
+		elif [[ "${EBUILD_PHASE}" == "test" ]]; then
+			python_default_function() {
+				# Stolen from portage's _eapi0_src_test()
+				local emake_cmd="${MAKE:-make} ${MAKEOPTS} ${EXTRA_EMAKE}"
+				if ${emake_cmd} -j1 -n check &> /dev/null; then
+					${emake_cmd} -j1 check "$@"
+				elif ${emake_cmd} -j1 -n test &> /dev/null; then
+					${emake_cmd} -j1 test "$@"
+				fi
+			}
+		elif [[ "${EBUILD_PHASE}" == "install" ]]; then
+			python_default_function() {
+				emake DESTDIR="${D}" install "$@"
+			}
+		else
+			die "${FUNCNAME}(): '--default-function' option cannot be used in this ebuild phase"
+		fi
+		function="python_default_function"
+	fi
+
+	# Ensure that python_execute_function() cannot be directly or indirectly called by python_execute_function().
+	if _python_abi-specific_local_scope; then
+		die "${FUNCNAME}(): Invalid call stack"
+	fi
+
+	if [[ "${quiet}" == "0" ]]; then
+		[[ "${EBUILD_PHASE}" == "setup" ]] && action="Setting up"
+		[[ "${EBUILD_PHASE}" == "unpack" ]] && action="Unpacking"
+		[[ "${EBUILD_PHASE}" == "prepare" ]] && action="Preparation"
+		[[ "${EBUILD_PHASE}" == "configure" ]] && action="Configuration"
+		[[ "${EBUILD_PHASE}" == "compile" ]] && action="Building"
+		[[ "${EBUILD_PHASE}" == "test" ]] && action="Testing"
+		[[ "${EBUILD_PHASE}" == "install" ]] && action="Installation"
+		[[ "${EBUILD_PHASE}" == "preinst" ]] && action="Preinstallation"
+		[[ "${EBUILD_PHASE}" == "postinst" ]] && action="Postinstallation"
+		[[ "${EBUILD_PHASE}" == "prerm" ]] && action="Preuninstallation"
+		[[ "${EBUILD_PHASE}" == "postrm" ]] && action="Postuninstallation"
+	fi
+
+	_python_calculate_PYTHON_ABIS
+	if [[ "${final_ABI}" == "1" ]]; then
+		iterated_PYTHON_ABIS="$(PYTHON -f --ABI)"
+	else
+		iterated_PYTHON_ABIS="${PYTHON_ABIS}"
+	fi
+	for PYTHON_ABI in ${iterated_PYTHON_ABIS}; do
+		if [[ "${EBUILD_PHASE}" == "test" ]] && _python_check_python_abi_matching --patterns-list "${PYTHON_ABI}" "${PYTHON_TESTS_RESTRICTED_ABIS}"; then
+			if [[ "${quiet}" == "0" ]]; then
+				echo " ${_GREEN}*${_NORMAL} ${_BLUE}Testing of ${CATEGORY}/${PF} with $(python_get_implementation_and_version) skipped${_NORMAL}"
+			fi
+			continue
+		fi
+
+		_python_prepare_flags
+
+		if [[ "${quiet}" == "0" ]]; then
+			if [[ -n "${action_message_template}" ]]; then
+				eval "action_message=\"${action_message_template}\""
+			else
+				action_message="${action} of ${CATEGORY}/${PF} with $(python_get_implementation_and_version)..."
+			fi
+			echo " ${_GREEN}*${_NORMAL} ${_BLUE}${action_message}${_NORMAL}"
+		fi
+
+		if [[ "${separate_build_dirs}" == "1" ]]; then
+			if [[ -n "${source_dir}" ]]; then
+				export BUILDDIR="${S}/${source_dir}-${PYTHON_ABI}"
+			else
+				export BUILDDIR="${S}-${PYTHON_ABI}"
+			fi
+			pushd "${BUILDDIR}" > /dev/null || die "pushd failed"
+		else
+			export BUILDDIR="${S}"
+		fi
+
+		previous_directory="$(pwd)"
+		previous_directory_stack="$(dirs -p)"
+		previous_directory_stack_length="$(dirs -p | wc -l)"
+
+		if ! has "${EAPI}" 0 1 2 3 && has "${PYTHON_ABI}" ${FAILURE_TOLERANT_PYTHON_ABIS}; then
+			EPYTHON="$(PYTHON)" nonfatal "${function}" "$@"
+		else
+			EPYTHON="$(PYTHON)" "${function}" "$@"
+		fi
+
+		return_code="$?"
+
+		_python_restore_flags
+
+		if [[ "${return_code}" -ne 0 ]]; then
+			if [[ -n "${failure_message_template}" ]]; then
+				eval "failure_message=\"${failure_message_template}\""
+			else
+				failure_message="${action} failed with $(python_get_implementation_and_version) in ${function}() function"
+			fi
+
+			if [[ "${nonfatal}" == "1" ]]; then
+				if [[ "${quiet}" == "0" ]]; then
+					ewarn "${failure_message}"
+				fi
+			elif [[ "${final_ABI}" == "0" ]] && has "${PYTHON_ABI}" ${FAILURE_TOLERANT_PYTHON_ABIS}; then
+				if [[ "${EBUILD_PHASE}" != "test" ]] || ! has test-fail-continue ${FEATURES}; then
+					local enabled_PYTHON_ABIS= other_PYTHON_ABI
+					for other_PYTHON_ABI in ${PYTHON_ABIS}; do
+						[[ "${other_PYTHON_ABI}" != "${PYTHON_ABI}" ]] && enabled_PYTHON_ABIS+="${enabled_PYTHON_ABIS:+ }${other_PYTHON_ABI}"
+					done
+					export PYTHON_ABIS="${enabled_PYTHON_ABIS}"
+				fi
+				if [[ "${quiet}" == "0" ]]; then
+					ewarn "${failure_message}"
+				fi
+				if [[ -z "${PYTHON_ABIS}" ]]; then
+					die "${function}() function failed with all enabled Python ABIs"
+				fi
+			else
+				die "${failure_message}"
+			fi
+		fi
+
+		# Ensure that directory stack has not been decreased.
+		if [[ "$(dirs -p | wc -l)" -lt "${previous_directory_stack_length}" ]]; then
+			die "Directory stack decreased illegally"
+		fi
+
+		# Avoid side effects of earlier returning from the specified function.
+		while [[ "$(dirs -p | wc -l)" -gt "${previous_directory_stack_length}" ]]; do
+			popd > /dev/null || die "popd failed"
+		done
+
+		# Ensure that the bottom part of directory stack has not been changed. Restore
+		# previous directory (from before running of the specified function) before
+		# comparison of directory stacks to avoid mismatch of directory stacks after
+		# potential using of 'cd' to change current directory. Restoration of previous
+		# directory allows to safely use 'cd' to change current directory in the
+		# specified function without changing it back to original directory.
+		cd "${previous_directory}"
+		if [[ "$(dirs -p)" != "${previous_directory_stack}" ]]; then
+			die "Directory stack changed illegally"
+		fi
+
+		if [[ "${separate_build_dirs}" == "1" ]]; then
+			popd > /dev/null || die "popd failed"
+		fi
+		unset BUILDDIR
+	done
+
+	if [[ "${default_function}" == "1" ]]; then
+		unset -f python_default_function
+	fi
+}
+
+# @FUNCTION: python_copy_sources
+# @USAGE: <directory="${S}"> [directory]
+# @DESCRIPTION:
+# Copy unpacked sources of current package to separate build directory for each Python ABI.
+python_copy_sources() {
+	if ! _python_package_supporting_installation_for_multiple_python_abis; then
+		die "${FUNCNAME}() cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+	fi
+
+	_python_check_python_pkg_setup_execution
+
+	local dir dirs=() PYTHON_ABI
+
+	if [[ "$#" -eq 0 ]]; then
+		if [[ "${WORKDIR}" == "${S}" ]]; then
+			die "${FUNCNAME}() cannot be used with current value of S variable"
+		fi
+		dirs=("${S%/}")
+	else
+		dirs=("$@")
+	fi
+
+	_python_calculate_PYTHON_ABIS
+	for PYTHON_ABI in ${PYTHON_ABIS}; do
+		for dir in "${dirs[@]}"; do
+			cp -pr "${dir}" "${dir}-${PYTHON_ABI}" > /dev/null || die "Copying of sources failed"
+		done
+	done
+}
+
+# @FUNCTION: python_generate_wrapper_scripts
+# @USAGE: [-E|--respect-EPYTHON] [-f|--force] [-q|--quiet] [--] <file> [files]
+# @DESCRIPTION:
+# Generate wrapper scripts. Existing files are overwritten only with --force option.
+# If --respect-EPYTHON option is specified, then generated wrapper scripts will
+# respect EPYTHON variable at run time.
+#
+# This function can be used only in src_install() phase.
+python_generate_wrapper_scripts() {
+	if [[ "${EBUILD_PHASE}" != "install" ]]; then
+		die "${FUNCNAME}() can be used only in src_install() phase"
+	fi
+
+	if ! _python_package_supporting_installation_for_multiple_python_abis; then
+		die "${FUNCNAME}() cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+	fi
+
+	_python_check_python_pkg_setup_execution
+	_python_initialize_prefix_variables
+
+	local eselect_python_option file force="0" quiet="0" PYTHON_ABI PYTHON_ABIS_list python2_enabled="0" python3_enabled="0" respect_EPYTHON="0"
+
+	while (($#)); do
+		case "$1" in
+			-E|--respect-EPYTHON)
+				respect_EPYTHON="1"
+				;;
+			-f|--force)
+				force="1"
+				;;
+			-q|--quiet)
+				quiet="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	if [[ "$#" -eq 0 ]]; then
+		die "${FUNCNAME}(): Missing arguments"
+	fi
+
+	_python_calculate_PYTHON_ABIS
+	for PYTHON_ABI in "${_CPYTHON2_GLOBALLY_SUPPORTED_ABIS[@]}"; do
+		if has "${PYTHON_ABI}" ${PYTHON_ABIS}; then
+			python2_enabled="1"
+		fi
+	done
+	for PYTHON_ABI in "${_CPYTHON3_GLOBALLY_SUPPORTED_ABIS[@]}"; do
+		if has "${PYTHON_ABI}" ${PYTHON_ABIS}; then
+			python3_enabled="1"
+		fi
+	done
+
+	if [[ "${python2_enabled}" == "1" && "${python3_enabled}" == "1" ]]; then
+		eselect_python_option=
+	elif [[ "${python2_enabled}" == "1" && "${python3_enabled}" == "0" ]]; then
+		eselect_python_option="--python2"
+	elif [[ "${python2_enabled}" == "0" && "${python3_enabled}" == "1" ]]; then
+		eselect_python_option="--python3"
+	else
+		die "${FUNCNAME}(): Unsupported environment"
+	fi
+
+	PYTHON_ABIS_list="$("$(PYTHON -f)" -c "print(', '.join('\"%s\"' % x for x in reversed('${PYTHON_ABIS}'.split())))")"
+
+	for file in "$@"; do
+		if [[ -f "${file}" && "${force}" == "0" ]]; then
+			die "${FUNCNAME}(): '${file}' already exists"
+		fi
+
+		if [[ "${quiet}" == "0" ]]; then
+			einfo "Generating '${file#${ED%/}}' wrapper script"
+		fi
+
+		cat << EOF > "${file}"
+#!/usr/bin/env python
+# Gentoo '${file##*/}' wrapper script generated by python_generate_wrapper_scripts()
+
+import os
+import re
+import subprocess
+import sys
+
+cpython_ABI_re = re.compile(r"^(\d+\.\d+)$")
+jython_ABI_re = re.compile(r"^(\d+\.\d+)-jython$")
+pypy_ABI_re = re.compile(r"^\d+\.\d+-pypy-(\d+\.\d+)$")
+cpython_interpreter_re = re.compile(r"^python(\d+\.\d+)$")
+jython_interpreter_re = re.compile(r"^jython(\d+\.\d+)$")
+pypy_interpreter_re = re.compile(r"^pypy-c(\d+\.\d+)$")
+cpython_shebang_re = re.compile(r"^#![ \t]*(?:${EPREFIX}/usr/bin/python|(?:${EPREFIX})?/usr/bin/env[ \t]+(?:${EPREFIX}/usr/bin/)?python)")
+python_shebang_options_re = re.compile(r"^#![ \t]*${EPREFIX}/usr/bin/(?:jython|pypy-c|python)(?:\d+(?:\.\d+)?)?[ \t]+(-\S)")
+python_verification_output_re = re.compile("^GENTOO_PYTHON_TARGET_SCRIPT_PATH supported\n$")
+
+#pypy_versions_mapping = {
+#	"1.5": "2.7",
+#	"1.6": "2.7",
+#	"1.7": "2.7",
+#	"1.8": "2.7",
+#	"1.9": "2.7",
+#	"2.0": "2.7",
+#}
+
+def get_PYTHON_ABI(python_interpreter):
+	cpython_matched = cpython_interpreter_re.match(python_interpreter)
+	jython_matched = jython_interpreter_re.match(python_interpreter)
+	pypy_matched = pypy_interpreter_re.match(python_interpreter)
+	if cpython_matched is not None:
+		PYTHON_ABI = cpython_matched.group(1)
+	elif jython_matched is not None:
+		PYTHON_ABI = jython_matched.group(1) + "-jython"
+	elif pypy_matched is not None:
+		#PYTHON_ABI = pypy_versions_mapping[pypy_matched.group(1)] + "-pypy-" + pypy_matched.group(1)
+		PYTHON_ABI = "2.7-pypy-" + pypy_matched.group(1)
+	else:
+		PYTHON_ABI = None
+	return PYTHON_ABI
+
+def get_python_interpreter(PYTHON_ABI):
+	cpython_matched = cpython_ABI_re.match(PYTHON_ABI)
+	jython_matched = jython_ABI_re.match(PYTHON_ABI)
+	pypy_matched = pypy_ABI_re.match(PYTHON_ABI)
+	if cpython_matched is not None:
+		python_interpreter = "python" + cpython_matched.group(1)
+	elif jython_matched is not None:
+		python_interpreter = "jython" + jython_matched.group(1)
+	elif pypy_matched is not None:
+		python_interpreter = "pypy-c" + pypy_matched.group(1)
+	else:
+		python_interpreter = None
+	return python_interpreter
+
+EOF
+		if [[ "$?" != "0" ]]; then
+			die "${FUNCNAME}(): Generation of '$1' failed"
+		fi
+		if [[ "${respect_EPYTHON}" == "1" ]]; then
+			cat << EOF >> "${file}"
+python_interpreter = os.environ.get("EPYTHON")
+if python_interpreter:
+	PYTHON_ABI = get_PYTHON_ABI(python_interpreter)
+	if PYTHON_ABI is None:
+		sys.stderr.write("%s: EPYTHON variable has unrecognized value '%s'\n" % (sys.argv[0], python_interpreter))
+		sys.exit(1)
+else:
+	try:
+		environment = os.environ.copy()
+		environment["ROOT"] = "/"
+		eselect_process = subprocess.Popen(["${EPREFIX}/usr/bin/eselect", "python", "show"${eselect_python_option:+, $(echo "\"")}${eselect_python_option}${eselect_python_option:+$(echo "\"")}], env=environment, stdout=subprocess.PIPE)
+		if eselect_process.wait() != 0:
+			raise ValueError
+	except (OSError, ValueError):
+		sys.stderr.write("%s: Execution of 'eselect python show${eselect_python_option:+ }${eselect_python_option}' failed\n" % sys.argv[0])
+		sys.exit(1)
+
+	python_interpreter = eselect_process.stdout.read()
+	if not isinstance(python_interpreter, str):
+		# Python 3
+		python_interpreter = python_interpreter.decode()
+	python_interpreter = python_interpreter.rstrip("\n")
+
+	PYTHON_ABI = get_PYTHON_ABI(python_interpreter)
+	if PYTHON_ABI is None:
+		sys.stderr.write("%s: 'eselect python show${eselect_python_option:+ }${eselect_python_option}' printed unrecognized value '%s'\n" % (sys.argv[0], python_interpreter))
+		sys.exit(1)
+
+wrapper_script_path = os.path.realpath(sys.argv[0])
+target_executable_path = "%s-%s" % (wrapper_script_path, PYTHON_ABI)
+if not os.path.exists(target_executable_path):
+	sys.stderr.write("%s: '%s' does not exist\n" % (sys.argv[0], target_executable_path))
+	sys.exit(1)
+EOF
+			if [[ "$?" != "0" ]]; then
+				die "${FUNCNAME}(): Generation of '$1' failed"
+			fi
+		else
+			cat << EOF >> "${file}"
+try:
+	environment = os.environ.copy()
+	environment["ROOT"] = "/"
+	eselect_process = subprocess.Popen(["${EPREFIX}/usr/bin/eselect", "python", "show"${eselect_python_option:+, $(echo "\"")}${eselect_python_option}${eselect_python_option:+$(echo "\"")}], env=environment, stdout=subprocess.PIPE)
+	if eselect_process.wait() != 0:
+		raise ValueError
+except (OSError, ValueError):
+	sys.stderr.write("%s: Execution of 'eselect python show${eselect_python_option:+ }${eselect_python_option}' failed\n" % sys.argv[0])
+	sys.exit(1)
+
+python_interpreter = eselect_process.stdout.read()
+if not isinstance(python_interpreter, str):
+	# Python 3
+	python_interpreter = python_interpreter.decode()
+python_interpreter = python_interpreter.rstrip("\n")
+
+PYTHON_ABI = get_PYTHON_ABI(python_interpreter)
+if PYTHON_ABI is None:
+	sys.stderr.write("%s: 'eselect python show${eselect_python_option:+ }${eselect_python_option}' printed unrecognized value '%s'\n" % (sys.argv[0], python_interpreter))
+	sys.exit(1)
+
+wrapper_script_path = os.path.realpath(sys.argv[0])
+for PYTHON_ABI in [PYTHON_ABI, ${PYTHON_ABIS_list}]:
+	target_executable_path = "%s-%s" % (wrapper_script_path, PYTHON_ABI)
+	if os.path.exists(target_executable_path):
+		break
+else:
+	sys.stderr.write("%s: No target script exists for '%s'\n" % (sys.argv[0], wrapper_script_path))
+	sys.exit(1)
+
+python_interpreter = get_python_interpreter(PYTHON_ABI)
+if python_interpreter is None:
+	sys.stderr.write("%s: Unrecognized Python ABI '%s'\n" % (sys.argv[0], PYTHON_ABI))
+	sys.exit(1)
+EOF
+			if [[ "$?" != "0" ]]; then
+				die "${FUNCNAME}(): Generation of '$1' failed"
+			fi
+		fi
+		cat << EOF >> "${file}"
+
+target_executable = open(target_executable_path, "rb")
+target_executable_first_line = target_executable.readline()
+target_executable.close()
+if not isinstance(target_executable_first_line, str):
+	# Python 3
+	target_executable_first_line = target_executable_first_line.decode("utf_8", "replace")
+
+options = []
+python_shebang_options_matched = python_shebang_options_re.match(target_executable_first_line)
+if python_shebang_options_matched is not None:
+	options = [python_shebang_options_matched.group(1)]
+
+cpython_shebang_matched = cpython_shebang_re.match(target_executable_first_line)
+
+if cpython_shebang_matched is not None:
+	try:
+		python_interpreter_path = "${EPREFIX}/usr/bin/%s" % python_interpreter
+		os.environ["GENTOO_PYTHON_TARGET_SCRIPT_PATH_VERIFICATION"] = "1"
+		python_verification_process = subprocess.Popen([python_interpreter_path, "-c", "pass"], stdout=subprocess.PIPE)
+		del os.environ["GENTOO_PYTHON_TARGET_SCRIPT_PATH_VERIFICATION"]
+		if python_verification_process.wait() != 0:
+			raise ValueError
+
+		python_verification_output = python_verification_process.stdout.read()
+		if not isinstance(python_verification_output, str):
+			# Python 3
+			python_verification_output = python_verification_output.decode()
+
+		if not python_verification_output_re.match(python_verification_output):
+			raise ValueError
+
+		if cpython_interpreter_re.match(python_interpreter) is not None:
+			os.environ["GENTOO_PYTHON_PROCESS_NAME"] = os.path.basename(sys.argv[0])
+			os.environ["GENTOO_PYTHON_WRAPPER_SCRIPT_PATH"] = sys.argv[0]
+			os.environ["GENTOO_PYTHON_TARGET_SCRIPT_PATH"] = target_executable_path
+
+		if hasattr(os, "execv"):
+			os.execv(python_interpreter_path, [python_interpreter_path] + options + sys.argv)
+		else:
+			sys.exit(subprocess.Popen([python_interpreter_path] + options + sys.argv).wait())
+	except (KeyboardInterrupt, SystemExit):
+		raise
+	except:
+		pass
+	for variable in ("GENTOO_PYTHON_PROCESS_NAME", "GENTOO_PYTHON_WRAPPER_SCRIPT_PATH", "GENTOO_PYTHON_TARGET_SCRIPT_PATH", "GENTOO_PYTHON_TARGET_SCRIPT_PATH_VERIFICATION"):
+		if variable in os.environ:
+			del os.environ[variable]
+
+if hasattr(os, "execv"):
+	os.execv(target_executable_path, sys.argv)
+else:
+	sys.exit(subprocess.Popen([target_executable_path] + sys.argv[1:]).wait())
+EOF
+		if [[ "$?" != "0" ]]; then
+			die "${FUNCNAME}(): Generation of '$1' failed"
+		fi
+		fperms +x "${file#${ED%/}}" || die "fperms '${file}' failed"
+	done
+}
+
+# @ECLASS-VARIABLE: PYTHON_VERSIONED_SCRIPTS
+# @DESCRIPTION:
+# Array of regular expressions of paths to versioned Python scripts.
+# Python scripts in /usr/bin and /usr/sbin are versioned by default.
+
+# @ECLASS-VARIABLE: PYTHON_VERSIONED_EXECUTABLES
+# @DESCRIPTION:
+# Array of regular expressions of paths to versioned executables (including Python scripts).
+
+# @ECLASS-VARIABLE: PYTHON_NONVERSIONED_EXECUTABLES
+# @DESCRIPTION:
+# Array of regular expressions of paths to nonversioned executables (including Python scripts).
+
+# @FUNCTION: python_merge_intermediate_installation_images
+# @USAGE: [-q|--quiet] [--] <intermediate_installation_images_directory>
+# @DESCRIPTION:
+# Merge intermediate installation images into installation image.
+#
+# This function can be used only in src_install() phase.
+python_merge_intermediate_installation_images() {
+	if [[ "${EBUILD_PHASE}" != "install" ]]; then
+		die "${FUNCNAME}() can be used only in src_install() phase"
+	fi
+
+	if ! _python_package_supporting_installation_for_multiple_python_abis; then
+		die "${FUNCNAME}() cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+	fi
+
+	_python_check_python_pkg_setup_execution
+	_python_initialize_prefix_variables
+
+	local absolute_file b file files=() intermediate_installation_images_directory PYTHON_ABI quiet="0" regex shebang version_executable wrapper_scripts=() wrapper_scripts_set=()
+
+	while (($#)); do
+		case "$1" in
+			-q|--quiet)
+				quiet="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	if [[ "$#" -ne 1 ]]; then
+		die "${FUNCNAME}() requires 1 argument"
+	fi
+
+	intermediate_installation_images_directory="$1"
+
+	if [[ ! -d "${intermediate_installation_images_directory}" ]]; then
+		die "${FUNCNAME}(): Intermediate installation images directory '${intermediate_installation_images_directory}' does not exist"
+	fi
+
+	_python_calculate_PYTHON_ABIS
+	if [[ "$(PYTHON -f --ABI)" == 3.* ]]; then
+		b="b"
+	fi
+
+	while read -d $'\0' -r file; do
+		files+=("${file}")
+	done < <("$(PYTHON -f)" -c \
+"import os
+import sys
+
+if hasattr(sys.stdout, 'buffer'):
+	# Python 3
+	stdout = sys.stdout.buffer
+else:
+	# Python 2
+	stdout = sys.stdout
+
+files_set = set()
+
+os.chdir(${b}'${intermediate_installation_images_directory}')
+
+for PYTHON_ABI in ${b}'${PYTHON_ABIS}'.split():
+	for root, dirs, files in os.walk(PYTHON_ABI + ${b}'${EPREFIX}'):
+		root = root[len(PYTHON_ABI + ${b}'${EPREFIX}')+1:]
+		files_set.update(root + ${b}'/' + file for file in files)
+
+for file in sorted(files_set):
+	stdout.write(file)
+	stdout.write(${b}'\x00')" || die "${FUNCNAME}(): Failure of extraction of files in intermediate installation images")
+
+	for PYTHON_ABI in ${PYTHON_ABIS}; do
+		if [[ ! -d "${intermediate_installation_images_directory}/${PYTHON_ABI}" ]]; then
+			die "${FUNCNAME}(): Intermediate installation image for Python ABI '${PYTHON_ABI}' does not exist"
+		fi
+
+		pushd "${intermediate_installation_images_directory}/${PYTHON_ABI}${EPREFIX}" > /dev/null || die "pushd failed"
+
+		for file in "${files[@]}"; do
+			version_executable="0"
+			for regex in "/usr/bin/.*" "/usr/sbin/.*" "${PYTHON_VERSIONED_SCRIPTS[@]}"; do
+				if [[ "/${file}" =~ ^${regex}$ ]]; then
+					version_executable="1"
+					break
+				fi
+			done
+			for regex in "${PYTHON_VERSIONED_EXECUTABLES[@]}"; do
+				if [[ "/${file}" =~ ^${regex}$ ]]; then
+					version_executable="2"
+					break
+				fi
+			done
+			if [[ "${version_executable}" != "0" ]]; then
+				for regex in "${PYTHON_NONVERSIONED_EXECUTABLES[@]}"; do
+					if [[ "/${file}" =~ ^${regex}$ ]]; then
+						version_executable="0"
+						break
+					fi
+				done
+			fi
+
+			[[ "${version_executable}" == "0" ]] && continue
+
+			if [[ -L "${file}" ]]; then
+				absolute_file="$(readlink "${file}")"
+				if [[ "${absolute_file}" == /* ]]; then
+					absolute_file="${intermediate_installation_images_directory}/${PYTHON_ABI}${EPREFIX}/${absolute_file##/}"
+				else
+					if [[ "${file}" == */* ]]; then
+						absolute_file="${intermediate_installation_images_directory}/${PYTHON_ABI}${EPREFIX}/${file%/*}/${absolute_file}"
+					else
+						absolute_file="${intermediate_installation_images_directory}/${PYTHON_ABI}${EPREFIX}/${absolute_file}"
+					fi
+				fi
+			else
+				absolute_file="${intermediate_installation_images_directory}/${PYTHON_ABI}${EPREFIX}/${file}"
+			fi
+
+			[[ ! -x "${absolute_file}" ]] && continue
+
+			shebang="$(head -n1 "${absolute_file}")" || die "Extraction of shebang from '${absolute_file}' failed"
+
+			if [[ "${version_executable}" == "2" ]]; then
+				wrapper_scripts+=("${ED}${file}")
+			elif [[ "${version_executable}" == "1" ]]; then
+				if [[ "${shebang}" =~ ${_PYTHON_SHEBANG_BASE_PART_REGEX}([[:digit:]]+(\.[[:digit:]]+)?)?($|[[:space:]]+) ]]; then
+					wrapper_scripts+=("${ED}${file}")
+				else
+					version_executable="0"
+				fi
+			fi
+
+			[[ "${version_executable}" == "0" ]] && continue
+
+			if [[ -e "${file}-${PYTHON_ABI}" ]]; then
+				die "${FUNCNAME}(): '${EPREFIX}/${file}-${PYTHON_ABI}' already exists"
+			fi
+
+			mv "${file}" "${file}-${PYTHON_ABI}" || die "Renaming of '${file}' failed"
+
+			if [[ "${shebang}" =~ ${_PYTHON_SHEBANG_BASE_PART_REGEX}[[:digit:]]*($|[[:space:]]+) ]]; then
+				if [[ -L "${file}-${PYTHON_ABI}" ]]; then
+					python_convert_shebangs $([[ "${quiet}" == "1" ]] && echo --quiet) "${PYTHON_ABI}" "${absolute_file}"
+				else
+					python_convert_shebangs $([[ "${quiet}" == "1" ]] && echo --quiet) "${PYTHON_ABI}" "${file}-${PYTHON_ABI}"
+				fi
+			fi
+		done
+
+		popd > /dev/null || die "popd failed"
+
+		# This is per bug #390691, without the duplication refactor, and with
+		# the 3-way structure per comment #6. This enable users with old
+		# coreutils to upgrade a lot easier (you need to upgrade python+portage
+		# before coreutils can be upgraded).
+		if ROOT="/" has_version '>=sys-apps/coreutils-6.9.90'; then
+			cp -fr --preserve=all --no-preserve=context "${intermediate_installation_images_directory}/${PYTHON_ABI}/"* "${D}" || die "Merging of intermediate installation image for Python ABI '${PYTHON_ABI} into installation image failed"
+		elif ROOT="/" has_version sys-apps/coreutils; then
+			cp -fr --preserve=all "${intermediate_installation_images_directory}/${PYTHON_ABI}/"* "${D}" || die "Merging of intermediate installation image for Python ABI '${PYTHON_ABI} into installation image failed"
+		else
+			cp -fpr "${intermediate_installation_images_directory}/${PYTHON_ABI}/"* "${D}" || die "Merging of intermediate installation image for Python ABI '${PYTHON_ABI} into installation image failed"
+		fi
+	done
+
+	rm -fr "${intermediate_installation_images_directory}"
+
+	if [[ "${#wrapper_scripts[@]}" -ge 1 ]]; then
+		rm -f "${T}/python_wrapper_scripts"
+
+		for file in "${wrapper_scripts[@]}"; do
+			echo -n "${file}" >> "${T}/python_wrapper_scripts"
+			echo -en "\x00" >> "${T}/python_wrapper_scripts"
+		done
+
+		while read -d $'\0' -r file; do
+			wrapper_scripts_set+=("${file}")
+		done < <("$(PYTHON -f)" -c \
+"import sys
+
+if hasattr(sys.stdout, 'buffer'):
+	# Python 3
+	stdout = sys.stdout.buffer
+else:
+	# Python 2
+	stdout = sys.stdout
+
+python_wrapper_scripts_file = open('${T}/python_wrapper_scripts', 'rb')
+files = set(python_wrapper_scripts_file.read().rstrip(${b}'\x00').split(${b}'\x00'))
+python_wrapper_scripts_file.close()
+
+for file in sorted(files):
+	stdout.write(file)
+	stdout.write(${b}'\x00')" || die "${FUNCNAME}(): Failure of extraction of set of wrapper scripts")
+
+		python_generate_wrapper_scripts $([[ "${quiet}" == "1" ]] && echo --quiet) "${wrapper_scripts_set[@]}"
+	fi
+}
+
+# ================================================================================================
+# ========= FUNCTIONS FOR PACKAGES NOT SUPPORTING INSTALLATION FOR MULTIPLE PYTHON ABIS ==========
+# ================================================================================================
+
+unset EPYTHON PYTHON_ABI
+
+# @FUNCTION: python_set_active_version
+# @USAGE: <Python_ABI|2|3>
+# @DESCRIPTION:
+# Set locally active version of Python.
+# If Python_ABI argument is specified, then version of Python corresponding to Python_ABI is used.
+# If 2 argument is specified, then active version of CPython 2 is used.
+# If 3 argument is specified, then active version of CPython 3 is used.
+#
+# This function can be used only in pkg_setup() phase.
+python_set_active_version() {
+	if [[ "${EBUILD_PHASE}" != "setup" ]]; then
+		die "${FUNCNAME}() can be used only in pkg_setup() phase"
+	fi
+
+	if _python_package_supporting_installation_for_multiple_python_abis; then
+		die "${FUNCNAME}() cannot be used in ebuilds of packages supporting installation for multiple Python ABIs"
+	fi
+
+	if [[ "$#" -ne 1 ]]; then
+		die "${FUNCNAME}() requires 1 argument"
+	fi
+
+	_python_initial_sanity_checks
+
+	if [[ -z "${PYTHON_ABI}" ]]; then
+		if [[ -n "$(_python_get_implementation --ignore-invalid "$1")" ]]; then
+			# PYTHON_ABI variable is intended to be used only in ebuilds/eclasses,
+			# so it does not need to be exported to subprocesses.
+			PYTHON_ABI="$1"
+			if ! _python_implementation && ! has_version "$(python_get_implementational_package)"; then
+				die "${FUNCNAME}(): '$(python_get_implementational_package)' is not installed"
+			fi
+			export EPYTHON="$(PYTHON "$1")"
+		elif [[ "$1" == "2" ]]; then
+			if ! _python_implementation && ! has_version "=dev-lang/python-2*"; then
+				die "${FUNCNAME}(): '=dev-lang/python-2*' is not installed"
+			fi
+			export EPYTHON="$(PYTHON -2)"
+			PYTHON_ABI="${EPYTHON#python}"
+			PYTHON_ABI="${PYTHON_ABI%%-*}"
+		elif [[ "$1" == "3" ]]; then
+			if ! _python_implementation && ! has_version "=dev-lang/python-3*"; then
+				die "${FUNCNAME}(): '=dev-lang/python-3*' is not installed"
+			fi
+			export EPYTHON="$(PYTHON -3)"
+			PYTHON_ABI="${EPYTHON#python}"
+			PYTHON_ABI="${PYTHON_ABI%%-*}"
+		else
+			die "${FUNCNAME}(): Unrecognized argument '$1'"
+		fi
+	fi
+
+	_python_final_sanity_checks
+
+	# python-updater checks PYTHON_REQUESTED_ACTIVE_VERSION variable.
+	PYTHON_REQUESTED_ACTIVE_VERSION="$1"
+}
+
+# @FUNCTION: python_need_rebuild
+# @DESCRIPTION:
+# Mark current package for rebuilding by python-updater after
+# switching of active version of Python.
+python_need_rebuild() {
+	if _python_package_supporting_installation_for_multiple_python_abis; then
+		die "${FUNCNAME}() cannot be used in ebuilds of packages supporting installation for multiple Python ABIs"
+	fi
+
+	_python_check_python_pkg_setup_execution
+
+	if [[ "$#" -ne 0 ]]; then
+		die "${FUNCNAME}() does not accept arguments"
+	fi
+
+	export PYTHON_NEED_REBUILD="$(PYTHON --ABI)"
+}
+
+# ================================================================================================
+# ======================================= GETTER FUNCTIONS =======================================
+# ================================================================================================
+
+_PYTHON_ABI_EXTRACTION_COMMAND=\
+'import platform
+import sys
+sys.stdout.write(".".join(str(x) for x in sys.version_info[:2]))
+if platform.system()[:4] == "Java":
+	sys.stdout.write("-jython")
+elif hasattr(platform, "python_implementation") and platform.python_implementation() == "PyPy":
+	sys.stdout.write("-pypy-" + ".".join(str(x) for x in sys.pypy_version_info[:2]))'
+
+_python_get_implementation() {
+	local ignore_invalid="0"
+
+	while (($#)); do
+		case "$1" in
+			--ignore-invalid)
+				ignore_invalid="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	if [[ "$#" -ne 1 ]]; then
+		die "${FUNCNAME}() requires 1 argument"
+	fi
+
+	if [[ "$1" =~ ^[[:digit:]]+\.[[:digit:]]+$ ]]; then
+		echo "CPython"
+	elif [[ "$1" =~ ^[[:digit:]]+\.[[:digit:]]+-jython$ ]]; then
+		echo "Jython"
+	elif [[ "$1" =~ ^[[:digit:]]+\.[[:digit:]]+-pypy-[[:digit:]]+\.[[:digit:]]+$ ]]; then
+		echo "PyPy"
+	else
+		if [[ "${ignore_invalid}" == "0" ]]; then
+			die "${FUNCNAME}(): Unrecognized Python ABI '$1'"
+		fi
+	fi
+}
+
+# @FUNCTION: PYTHON
+# @USAGE: [-2] [-3] [--ABI] [-a|--absolute-path] [-f|--final-ABI] [--] <Python_ABI="${PYTHON_ABI}">
+# @DESCRIPTION:
+# Print filename of Python interpreter for specified Python ABI. If Python_ABI argument
+# is ommitted, then PYTHON_ABI environment variable must be set and is used.
+# If -2 option is specified, then active version of CPython 2 is used.
+# If -3 option is specified, then active version of CPython 3 is used.
+# If --final-ABI option is specified, then final ABI from the list of enabled ABIs is used.
+# -2, -3 and --final-ABI options and Python_ABI argument cannot be specified simultaneously.
+# If --ABI option is specified, then only specified Python ABI is printed instead of
+# filename of Python interpreter.
+# If --absolute-path option is specified, then absolute path to Python interpreter is printed.
+# --ABI and --absolute-path options cannot be specified simultaneously.
+PYTHON() {
+	_python_check_python_pkg_setup_execution
+
+	local ABI_output="0" absolute_path_output="0" final_ABI="0" PYTHON_ABI="${PYTHON_ABI}" python_interpreter python2="0" python3="0"
+
+	while (($#)); do
+		case "$1" in
+			-2)
+				python2="1"
+				;;
+			-3)
+				python3="1"
+				;;
+			--ABI)
+				ABI_output="1"
+				;;
+			-a|--absolute-path)
+				absolute_path_output="1"
+				;;
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${ABI_output}" == "1" && "${absolute_path_output}" == "1" ]]; then
+		die "${FUNCNAME}(): '--ABI' and '--absolute-path' options cannot be specified simultaneously"
+	fi
+
+	if [[ "$((${python2} + ${python3} + ${final_ABI}))" -gt 1 ]]; then
+		die "${FUNCNAME}(): '-2', '-3' or '--final-ABI' options cannot be specified simultaneously"
+	fi
+
+	if [[ "$#" -eq 0 ]]; then
+		if [[ "${final_ABI}" == "1" ]]; then
+			if ! _python_package_supporting_installation_for_multiple_python_abis; then
+				die "${FUNCNAME}(): '--final-ABI' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+			fi
+			_python_calculate_PYTHON_ABIS
+			PYTHON_ABI="${PYTHON_ABIS##* }"
+		elif [[ "${python2}" == "1" ]]; then
+			PYTHON_ABI="$(ROOT="/" eselect python show --python2 --ABI)"
+			if [[ -z "${PYTHON_ABI}" ]]; then
+				die "${FUNCNAME}(): Active version of CPython 2 not set"
+			elif [[ "${PYTHON_ABI}" != "2."* ]]; then
+				die "${FUNCNAME}(): Internal error in \`eselect python show --python2\`"
+			fi
+		elif [[ "${python3}" == "1" ]]; then
+			PYTHON_ABI="$(ROOT="/" eselect python show --python3 --ABI)"
+			if [[ -z "${PYTHON_ABI}" ]]; then
+				die "${FUNCNAME}(): Active version of CPython 3 not set"
+			elif [[ "${PYTHON_ABI}" != "3."* ]]; then
+				die "${FUNCNAME}(): Internal error in \`eselect python show --python3\`"
+			fi
+		elif _python_package_supporting_installation_for_multiple_python_abis; then
+			if ! _python_abi-specific_local_scope; then
+				die "${FUNCNAME}() should be used in ABI-specific local scope"
+			fi
+		else
+			PYTHON_ABI="$("${EPREFIX}/usr/bin/python" -c "${_PYTHON_ABI_EXTRACTION_COMMAND}")"
+			if [[ -z "${PYTHON_ABI}" ]]; then
+				die "${FUNCNAME}(): Failure of extraction of locally active version of Python"
+			fi
+		fi
+	elif [[ "$#" -eq 1 ]]; then
+		if [[ "${final_ABI}" == "1" ]]; then
+			die "${FUNCNAME}(): '--final-ABI' option and Python ABI cannot be specified simultaneously"
+		fi
+		if [[ "${python2}" == "1" ]]; then
+			die "${FUNCNAME}(): '-2' option and Python ABI cannot be specified simultaneously"
+		fi
+		if [[ "${python3}" == "1" ]]; then
+			die "${FUNCNAME}(): '-3' option and Python ABI cannot be specified simultaneously"
+		fi
+		PYTHON_ABI="$1"
+	else
+		die "${FUNCNAME}(): Invalid usage"
+	fi
+
+	if [[ "${ABI_output}" == "1" ]]; then
+		echo -n "${PYTHON_ABI}"
+		return
+	else
+		if [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "CPython" ]]; then
+			python_interpreter="python${PYTHON_ABI}"
+		elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "Jython" ]]; then
+			python_interpreter="jython${PYTHON_ABI%-jython}"
+		elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "PyPy" ]]; then
+			python_interpreter="pypy-c${PYTHON_ABI#*-pypy-}"
+		fi
+
+		if [[ "${absolute_path_output}" == "1" ]]; then
+			echo -n "${EPREFIX}/usr/bin/${python_interpreter}"
+		else
+			echo -n "${python_interpreter}"
+		fi
+	fi
+
+	if [[ -n "${ABI}" && "${ABI}" != "${DEFAULT_ABI}" && "${DEFAULT_ABI}" != "default" ]]; then
+		echo -n "-${ABI}"
+	fi
+}
+
+# @FUNCTION: python_get_implementation
+# @USAGE: [-f|--final-ABI]
+# @DESCRIPTION:
+# Print name of Python implementation.
+# If --final-ABI option is specified, then final ABI from the list of enabled ABIs is used.
+python_get_implementation() {
+	_python_check_python_pkg_setup_execution
+
+	local final_ABI="0" PYTHON_ABI="${PYTHON_ABI}"
+
+	while (($#)); do
+		case "$1" in
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${final_ABI}" == "1" ]]; then
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}(): '--final-ABI' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+		PYTHON_ABI="$(PYTHON -f --ABI)"
+	else
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			if ! _python_abi-specific_local_scope; then
+				die "${FUNCNAME}() should be used in ABI-specific local scope"
+			fi
+		else
+			PYTHON_ABI="${PYTHON_ABI:-$(PYTHON --ABI)}"
+		fi
+	fi
+
+	echo "$(_python_get_implementation "${PYTHON_ABI}")"
+}
+
+# @FUNCTION: python_get_implementational_package
+# @USAGE: [-f|--final-ABI]
+# @DESCRIPTION:
+# Print category, name and slot of package providing Python implementation.
+# If --final-ABI option is specified, then final ABI from the list of enabled ABIs is used.
+python_get_implementational_package() {
+	_python_check_python_pkg_setup_execution
+
+	local final_ABI="0" PYTHON_ABI="${PYTHON_ABI}"
+
+	while (($#)); do
+		case "$1" in
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${final_ABI}" == "1" ]]; then
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}(): '--final-ABI' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+		PYTHON_ABI="$(PYTHON -f --ABI)"
+	else
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			if ! _python_abi-specific_local_scope; then
+				die "${FUNCNAME}() should be used in ABI-specific local scope"
+			fi
+		else
+			PYTHON_ABI="${PYTHON_ABI:-$(PYTHON --ABI)}"
+		fi
+	fi
+
+	if [[ "${EAPI:-0}" == "0" ]]; then
+		if [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "CPython" ]]; then
+			echo "=dev-lang/python-${PYTHON_ABI}*"
+		elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "Jython" ]]; then
+			echo "=dev-java/jython-${PYTHON_ABI%-jython}*"
+		elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "PyPy" ]]; then
+			echo "=virtual/pypy-${PYTHON_ABI#*-pypy-}*"
+		fi
+	else
+		if [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "CPython" ]]; then
+			echo "dev-lang/python:${PYTHON_ABI}"
+		elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "Jython" ]]; then
+			echo "dev-java/jython:${PYTHON_ABI%-jython}"
+		elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "PyPy" ]]; then
+			echo "virtual/pypy:${PYTHON_ABI#*-pypy-}"
+		fi
+	fi
+}
+
+# @FUNCTION: python_get_includedir
+# @USAGE: [-b|--base-path] [-f|--final-ABI]
+# @DESCRIPTION:
+# Print path to Python include directory.
+# If --base-path option is specified, then path not prefixed with "/" is printed.
+# If --final-ABI option is specified, then final ABI from the list of enabled ABIs is used.
+python_get_includedir() {
+	_python_check_python_pkg_setup_execution
+
+	local base_path="0" final_ABI="0" prefix PYTHON_ABI="${PYTHON_ABI}"
+
+	while (($#)); do
+		case "$1" in
+			-b|--base-path)
+				base_path="1"
+				;;
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${base_path}" == "0" ]]; then
+		prefix="/"
+	fi
+
+	if [[ "${final_ABI}" == "1" ]]; then
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}(): '--final-ABI' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+		PYTHON_ABI="$(PYTHON -f --ABI)"
+	else
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			if ! _python_abi-specific_local_scope; then
+				die "${FUNCNAME}() should be used in ABI-specific local scope"
+			fi
+		else
+			PYTHON_ABI="${PYTHON_ABI:-$(PYTHON --ABI)}"
+		fi
+	fi
+
+	if [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "CPython" ]]; then
+		echo "${prefix}usr/include/python${PYTHON_ABI}"
+	elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "Jython" ]]; then
+		echo "${prefix}usr/share/jython-${PYTHON_ABI%-jython}/Include"
+	elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "PyPy" ]]; then
+		echo "${prefix}usr/$(get_libdir)/pypy${PYTHON_ABI#*-pypy-}/include"
+	fi
+}
+
+# @FUNCTION: python_get_libdir
+# @USAGE: [-b|--base-path] [-f|--final-ABI]
+# @DESCRIPTION:
+# Print path to Python standard library directory.
+# If --base-path option is specified, then path not prefixed with "/" is printed.
+# If --final-ABI option is specified, then final ABI from the list of enabled ABIs is used.
+python_get_libdir() {
+	_python_check_python_pkg_setup_execution
+
+	local base_path="0" final_ABI="0" prefix PYTHON_ABI="${PYTHON_ABI}"
+
+	while (($#)); do
+		case "$1" in
+			-b|--base-path)
+				base_path="1"
+				;;
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${base_path}" == "0" ]]; then
+		prefix="/"
+	fi
+
+	if [[ "${final_ABI}" == "1" ]]; then
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}(): '--final-ABI' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+		PYTHON_ABI="$(PYTHON -f --ABI)"
+	else
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			if ! _python_abi-specific_local_scope; then
+				die "${FUNCNAME}() should be used in ABI-specific local scope"
+			fi
+		else
+			PYTHON_ABI="${PYTHON_ABI:-$(PYTHON --ABI)}"
+		fi
+	fi
+
+	if [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "CPython" ]]; then
+		echo "${prefix}usr/$(get_libdir)/python${PYTHON_ABI}"
+	elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "Jython" ]]; then
+		echo "${prefix}usr/share/jython-${PYTHON_ABI%-jython}/Lib"
+	elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "PyPy" ]]; then
+		die "${FUNCNAME}(): PyPy has multiple standard library directories"
+	fi
+}
+
+# @FUNCTION: python_get_sitedir
+# @USAGE: [-b|--base-path] [-f|--final-ABI]
+# @DESCRIPTION:
+# Print path to Python site-packages directory.
+# If --base-path option is specified, then path not prefixed with "/" is printed.
+# If --final-ABI option is specified, then final ABI from the list of enabled ABIs is used.
+python_get_sitedir() {
+	_python_check_python_pkg_setup_execution
+
+	local base_path="0" final_ABI="0" prefix PYTHON_ABI="${PYTHON_ABI}"
+
+	while (($#)); do
+		case "$1" in
+			-b|--base-path)
+				base_path="1"
+				;;
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${base_path}" == "0" ]]; then
+		prefix="/"
+	fi
+
+	if [[ "${final_ABI}" == "1" ]]; then
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}(): '--final-ABI' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+		PYTHON_ABI="$(PYTHON -f --ABI)"
+	else
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			if ! _python_abi-specific_local_scope; then
+				die "${FUNCNAME}() should be used in ABI-specific local scope"
+			fi
+		else
+			PYTHON_ABI="${PYTHON_ABI:-$(PYTHON --ABI)}"
+		fi
+	fi
+
+	if [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "CPython" ]]; then
+		echo "${prefix}usr/$(get_libdir)/python${PYTHON_ABI}/site-packages"
+	elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "Jython" ]]; then
+		echo "${prefix}usr/share/jython-${PYTHON_ABI%-jython}/Lib/site-packages"
+	elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "PyPy" ]]; then
+		echo "${prefix}usr/$(get_libdir)/pypy${PYTHON_ABI#*-pypy-}/site-packages"
+	fi
+}
+
+# @FUNCTION: python_get_library
+# @USAGE: [-b|--base-path] [-f|--final-ABI] [-l|--linker-option]
+# @DESCRIPTION:
+# Print path to Python library.
+# If --base-path option is specified, then path not prefixed with "/" is printed.
+# If --linker-option is specified, then "-l${library}" linker option is printed.
+# If --final-ABI option is specified, then final ABI from the list of enabled ABIs is used.
+python_get_library() {
+	_python_check_python_pkg_setup_execution
+
+	local base_path="0" final_ABI="0" linker_option="0" prefix PYTHON_ABI="${PYTHON_ABI}"
+
+	while (($#)); do
+		case "$1" in
+			-b|--base-path)
+				base_path="1"
+				;;
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			-l|--linker-option)
+				linker_option="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${base_path}" == "0" ]]; then
+		prefix="/"
+	fi
+
+	if [[ "${base_path}" == "1" && "${linker_option}" == "1" ]]; then
+		die "${FUNCNAME}(): '--base-path' and '--linker-option' options cannot be specified simultaneously"
+	fi
+
+	if [[ "${final_ABI}" == "1" ]]; then
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}(): '--final-ABI' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+		PYTHON_ABI="$(PYTHON -f --ABI)"
+	else
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			if ! _python_abi-specific_local_scope; then
+				die "${FUNCNAME}() should be used in ABI-specific local scope"
+			fi
+		else
+			PYTHON_ABI="${PYTHON_ABI:-$(PYTHON --ABI)}"
+		fi
+	fi
+
+	if [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "CPython" ]]; then
+		if [[ "${linker_option}" == "1" ]]; then
+			echo "-lpython${PYTHON_ABI}"
+		else
+			echo "${prefix}usr/$(get_libdir)/libpython${PYTHON_ABI}$(get_libname)"
+		fi
+	elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "Jython" ]]; then
+		die "${FUNCNAME}(): Jython does not have shared library"
+	elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "PyPy" ]]; then
+		die "${FUNCNAME}(): PyPy does not have shared library"
+	fi
+}
+
+# @FUNCTION: python_get_version
+# @USAGE: [-f|--final-ABI] [-l|--language] [--full] [--major] [--minor] [--micro]
+# @DESCRIPTION:
+# Print version of Python implementation.
+# --full, --major, --minor and --micro options cannot be specified simultaneously.
+# If --full, --major, --minor and --micro options are not specified, then "${major_version}.${minor_version}" is printed.
+# If --language option is specified, then version of Python language is printed.
+# --language and --full options cannot be specified simultaneously.
+# --language and --micro options cannot be specified simultaneously.
+# If --final-ABI option is specified, then final ABI from the list of enabled ABIs is used.
+python_get_version() {
+	_python_check_python_pkg_setup_execution
+
+	local final_ABI="0" language="0" language_version full="0" major="0" minor="0" micro="0" PYTHON_ABI="${PYTHON_ABI}" python_command
+
+	while (($#)); do
+		case "$1" in
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			-l|--language)
+				language="1"
+				;;
+			--full)
+				full="1"
+				;;
+			--major)
+				major="1"
+				;;
+			--minor)
+				minor="1"
+				;;
+			--micro)
+				micro="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${final_ABI}" == "1" ]]; then
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}(): '--final-ABI' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+	else
+		if _python_package_supporting_installation_for_multiple_python_abis && ! _python_abi-specific_local_scope; then
+			die "${FUNCNAME}() should be used in ABI-specific local scope"
+		fi
+	fi
+
+	if [[ "$((${full} + ${major} + ${minor} + ${micro}))" -gt 1 ]]; then
+		die "${FUNCNAME}(): '--full', '--major', '--minor' or '--micro' options cannot be specified simultaneously"
+	fi
+
+	if [[ "${language}" == "1" ]]; then
+		if [[ "${final_ABI}" == "1" ]]; then
+			PYTHON_ABI="$(PYTHON -f --ABI)"
+		elif [[ -z "${PYTHON_ABI}" ]]; then
+			PYTHON_ABI="$(PYTHON --ABI)"
+		fi
+		language_version="${PYTHON_ABI%%-*}"
+		if [[ "${full}" == "1" ]]; then
+			die "${FUNCNAME}(): '--language' and '--full' options cannot be specified simultaneously"
+		elif [[ "${major}" == "1" ]]; then
+			echo "${language_version%.*}"
+		elif [[ "${minor}" == "1" ]]; then
+			echo "${language_version#*.}"
+		elif [[ "${micro}" == "1" ]]; then
+			die "${FUNCNAME}(): '--language' and '--micro' options cannot be specified simultaneously"
+		else
+			echo "${language_version}"
+		fi
+	else
+		if [[ "${full}" == "1" ]]; then
+			python_command="import sys; print('.'.join(str(x) for x in getattr(sys, 'pypy_version_info', sys.version_info)[:3]))"
+		elif [[ "${major}" == "1" ]]; then
+			python_command="import sys; print(getattr(sys, 'pypy_version_info', sys.version_info)[0])"
+		elif [[ "${minor}" == "1" ]]; then
+			python_command="import sys; print(getattr(sys, 'pypy_version_info', sys.version_info)[1])"
+		elif [[ "${micro}" == "1" ]]; then
+			python_command="import sys; print(getattr(sys, 'pypy_version_info', sys.version_info)[2])"
+		else
+			if [[ -n "${PYTHON_ABI}" && "${final_ABI}" == "0" ]]; then
+				if [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "CPython" ]]; then
+					echo "${PYTHON_ABI}"
+				elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "Jython" ]]; then
+					echo "${PYTHON_ABI%-jython}"
+				elif [[ "$(_python_get_implementation "${PYTHON_ABI}")" == "PyPy" ]]; then
+					echo "${PYTHON_ABI#*-pypy-}"
+				fi
+				return
+			fi
+			python_command="from sys import version_info; print('.'.join(str(x) for x in version_info[:2]))"
+		fi
+
+		if [[ "${final_ABI}" == "1" ]]; then
+			"$(PYTHON -f)" -c "${python_command}"
+		else
+			"$(PYTHON ${PYTHON_ABI})" -c "${python_command}"
+		fi
+	fi
+}
+
+# @FUNCTION: python_get_implementation_and_version
+# @USAGE: [-f|--final-ABI]
+# @DESCRIPTION:
+# Print name and version of Python implementation.
+# If version of Python implementation is not bound to version of Python language, then
+# version of Python language is additionally printed.
+# If --final-ABI option is specified, then final ABI from the list of enabled ABIs is used.
+python_get_implementation_and_version() {
+	_python_check_python_pkg_setup_execution
+
+	local final_ABI="0" PYTHON_ABI="${PYTHON_ABI}"
+
+	while (($#)); do
+		case "$1" in
+			-f|--final-ABI)
+				final_ABI="1"
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				die "${FUNCNAME}(): Invalid usage"
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${final_ABI}" == "1" ]]; then
+		if ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}(): '--final-ABI' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+		PYTHON_ABI="$(PYTHON -f --ABI)"
+	else
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			if ! _python_abi-specific_local_scope; then
+				die "${FUNCNAME}() should be used in ABI-specific local scope"
+			fi
+		else
+			PYTHON_ABI="${PYTHON_ABI:-$(PYTHON --ABI)}"
+		fi
+	fi
+
+	if [[ "${PYTHON_ABI}" =~ ^[[:digit:]]+\.[[:digit:]]+-[[:alnum:]]+-[[:digit:]]+\.[[:digit:]]+$ ]]; then
+		echo "$(_python_get_implementation "${PYTHON_ABI}") ${PYTHON_ABI##*-} (Python ${PYTHON_ABI%%-*})"
+	else
+		echo "$(_python_get_implementation "${PYTHON_ABI}") ${PYTHON_ABI%%-*}"
+	fi
+}
+
+# ================================================================================================
+# ================================ FUNCTIONS FOR RUNNING OF TESTS ================================
+# ================================================================================================
+
+# @ECLASS-VARIABLE: PYTHON_TEST_VERBOSITY
+# @DESCRIPTION:
+# User-configurable verbosity of tests of Python modules.
+# Supported values: 0, 1, 2, 3, 4.
+PYTHON_TEST_VERBOSITY="${PYTHON_TEST_VERBOSITY:-1}"
+
+_python_test_hook() {
+	if [[ "$#" -ne 1 ]]; then
+		die "${FUNCNAME}() requires 1 argument"
+	fi
+
+	if _python_package_supporting_installation_for_multiple_python_abis && [[ "$(type -t "${_PYTHON_TEST_FUNCTION}_$1_hook")" == "function" ]]; then
+		"${_PYTHON_TEST_FUNCTION}_$1_hook"
+	fi
+}
+
+# @FUNCTION: python_execute_nosetests
+# @USAGE: [-P|--PYTHONPATH PYTHONPATH] [-s|--separate-build-dirs] [--] [arguments]
+# @DESCRIPTION:
+# Execute nosetests for all enabled Python ABIs.
+# In ebuilds of packages supporting installation for multiple Python ABIs, this function calls
+# python_execute_nosetests_pre_hook() and python_execute_nosetests_post_hook(), if they are defined.
+python_execute_nosetests() {
+	_python_check_python_pkg_setup_execution
+	_python_set_color_variables
+
+	local PYTHONPATH_template separate_build_dirs
+
+	while (($#)); do
+		case "$1" in
+			-P|--PYTHONPATH)
+				PYTHONPATH_template="$2"
+				shift
+				;;
+			-s|--separate-build-dirs)
+				separate_build_dirs="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	python_test_function() {
+		local evaluated_PYTHONPATH
+
+		eval "evaluated_PYTHONPATH=\"${PYTHONPATH_template}\""
+
+		_PYTHON_TEST_FUNCTION="python_execute_nosetests" _python_test_hook pre
+
+		if [[ -n "${evaluated_PYTHONPATH}" ]]; then
+			echo ${_BOLD}PYTHONPATH="${evaluated_PYTHONPATH}" nosetests --verbosity="${PYTHON_TEST_VERBOSITY}" "$@"${_NORMAL}
+			PYTHONPATH="${evaluated_PYTHONPATH}" nosetests --verbosity="${PYTHON_TEST_VERBOSITY}" "$@" || return "$?"
+		else
+			echo ${_BOLD}nosetests --verbosity="${PYTHON_TEST_VERBOSITY}" "$@"${_NORMAL}
+			nosetests --verbosity="${PYTHON_TEST_VERBOSITY}" "$@" || return "$?"
+		fi
+
+		_PYTHON_TEST_FUNCTION="python_execute_nosetests" _python_test_hook post
+	}
+	if _python_package_supporting_installation_for_multiple_python_abis; then
+		python_execute_function ${separate_build_dirs:+-s} python_test_function "$@"
+	else
+		if [[ -n "${separate_build_dirs}" ]]; then
+			die "${FUNCNAME}(): Invalid usage"
+		fi
+		python_test_function "$@" || die "Testing failed"
+	fi
+
+	unset -f python_test_function
+}
+
+# @FUNCTION: python_execute_py.test
+# @USAGE: [-P|--PYTHONPATH PYTHONPATH] [-s|--separate-build-dirs] [--] [arguments]
+# @DESCRIPTION:
+# Execute py.test for all enabled Python ABIs.
+# In ebuilds of packages supporting installation for multiple Python ABIs, this function calls
+# python_execute_py.test_pre_hook() and python_execute_py.test_post_hook(), if they are defined.
+python_execute_py.test() {
+	_python_check_python_pkg_setup_execution
+	_python_set_color_variables
+
+	local PYTHONPATH_template separate_build_dirs
+
+	while (($#)); do
+		case "$1" in
+			-P|--PYTHONPATH)
+				PYTHONPATH_template="$2"
+				shift
+				;;
+			-s|--separate-build-dirs)
+				separate_build_dirs="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	python_test_function() {
+		local evaluated_PYTHONPATH
+
+		eval "evaluated_PYTHONPATH=\"${PYTHONPATH_template}\""
+
+		_PYTHON_TEST_FUNCTION="python_execute_py.test" _python_test_hook pre
+
+		if [[ -n "${evaluated_PYTHONPATH}" ]]; then
+			echo ${_BOLD}PYTHONPATH="${evaluated_PYTHONPATH}" py.test $([[ "${PYTHON_TEST_VERBOSITY}" -ge 2 ]] && echo -v) "$@"${_NORMAL}
+			PYTHONPATH="${evaluated_PYTHONPATH}" py.test $([[ "${PYTHON_TEST_VERBOSITY}" -ge 2 ]] && echo -v) "$@" || return "$?"
+		else
+			echo ${_BOLD}py.test $([[ "${PYTHON_TEST_VERBOSITY}" -gt 1 ]] && echo -v) "$@"${_NORMAL}
+			py.test $([[ "${PYTHON_TEST_VERBOSITY}" -gt 1 ]] && echo -v) "$@" || return "$?"
+		fi
+
+		_PYTHON_TEST_FUNCTION="python_execute_py.test" _python_test_hook post
+	}
+	if _python_package_supporting_installation_for_multiple_python_abis; then
+		python_execute_function ${separate_build_dirs:+-s} python_test_function "$@"
+	else
+		if [[ -n "${separate_build_dirs}" ]]; then
+			die "${FUNCNAME}(): Invalid usage"
+		fi
+		python_test_function "$@" || die "Testing failed"
+	fi
+
+	unset -f python_test_function
+}
+
+# @FUNCTION: python_execute_trial
+# @USAGE: [-P|--PYTHONPATH PYTHONPATH] [-s|--separate-build-dirs] [--] [arguments]
+# @DESCRIPTION:
+# Execute trial for all enabled Python ABIs.
+# In ebuilds of packages supporting installation for multiple Python ABIs, this function
+# calls python_execute_trial_pre_hook() and python_execute_trial_post_hook(), if they are defined.
+python_execute_trial() {
+	_python_check_python_pkg_setup_execution
+	_python_set_color_variables
+
+	local PYTHONPATH_template separate_build_dirs
+
+	while (($#)); do
+		case "$1" in
+			-P|--PYTHONPATH)
+				PYTHONPATH_template="$2"
+				shift
+				;;
+			-s|--separate-build-dirs)
+				separate_build_dirs="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	python_test_function() {
+		local evaluated_PYTHONPATH
+
+		eval "evaluated_PYTHONPATH=\"${PYTHONPATH_template}\""
+
+		_PYTHON_TEST_FUNCTION="python_execute_trial" _python_test_hook pre
+
+		if [[ -n "${evaluated_PYTHONPATH}" ]]; then
+			echo ${_BOLD}PYTHONPATH="${evaluated_PYTHONPATH}" trial $([[ "${PYTHON_TEST_VERBOSITY}" -ge 4 ]] && echo --spew) "$@"${_NORMAL}
+			PYTHONPATH="${evaluated_PYTHONPATH}" trial $([[ "${PYTHON_TEST_VERBOSITY}" -ge 4 ]] && echo --spew) "$@" || return "$?"
+		else
+			echo ${_BOLD}trial $([[ "${PYTHON_TEST_VERBOSITY}" -ge 4 ]] && echo --spew) "$@"${_NORMAL}
+			trial $([[ "${PYTHON_TEST_VERBOSITY}" -ge 4 ]] && echo --spew) "$@" || return "$?"
+		fi
+
+		_PYTHON_TEST_FUNCTION="python_execute_trial" _python_test_hook post
+	}
+	if _python_package_supporting_installation_for_multiple_python_abis; then
+		python_execute_function ${separate_build_dirs:+-s} python_test_function "$@"
+	else
+		if [[ -n "${separate_build_dirs}" ]]; then
+			die "${FUNCNAME}(): Invalid usage"
+		fi
+		python_test_function "$@" || die "Testing failed"
+	fi
+
+	unset -f python_test_function
+}
+
+# ================================================================================================
+# ======================= FUNCTIONS FOR HANDLING OF BYTE-COMPILED MODULES ========================
+# ================================================================================================
+
+# @FUNCTION: python_enable_pyc
+# @DESCRIPTION:
+# Tell Python to automatically recompile modules to .pyc/.pyo if the
+# timestamps/version stamps have changed.
+python_enable_pyc() {
+	_python_check_python_pkg_setup_execution
+
+	if [[ "$#" -ne 0 ]]; then
+		die "${FUNCNAME}() does not accept arguments"
+	fi
+
+	unset PYTHONDONTWRITEBYTECODE
+}
+
+# @FUNCTION: python_disable_pyc
+# @DESCRIPTION:
+# Tell Python not to automatically recompile modules to .pyc/.pyo
+# even if the timestamps/version stamps do not match. This is done
+# to protect sandbox.
+python_disable_pyc() {
+	_python_check_python_pkg_setup_execution
+
+	if [[ "$#" -ne 0 ]]; then
+		die "${FUNCNAME}() does not accept arguments"
+	fi
+
+	export PYTHONDONTWRITEBYTECODE="1"
+}
+
+_python_vecho() {
+	[[ -z ${PORTAGE_VERBOSE} ]] || echo "$@"
+}
+
+_python_clean_compiled_modules() {
+	_python_initialize_prefix_variables
+	_python_set_color_variables
+
+	[[ "${FUNCNAME[1]}" =~ ^(python_mod_optimize|python_mod_cleanup)$ ]] || die "${FUNCNAME}(): Invalid usage"
+
+	local base_module_name compiled_file compiled_files=() dir path py_file root
+
+	# Strip trailing slash from EROOT.
+	root="${EROOT%/}"
+
+	for path in "$@"; do
+		compiled_files=()
+		if [[ -d "${path}" ]]; then
+			while read -d $'\0' -r compiled_file; do
+				compiled_files+=("${compiled_file}")
+			done < <(find "${path}" "(" -name "*.py[co]" -o -name "*\$py.class" ")" -print0)
+
+			if [[ "${EBUILD_PHASE}" == "postrm" ]]; then
+				# Delete empty child directories.
+				find "${path}" -type d | sort -r | while read -r dir; do
+					if rmdir "${dir}" 2> /dev/null; then
+						_python_vecho "<<< ${dir}"
+					fi
+				done
+			fi
+		elif [[ "${path}" == *.py ]]; then
+			base_module_name="${path##*/}"
+			base_module_name="${base_module_name%.py}"
+			if [[ -d "${path%/*}/__pycache__" ]]; then
+				while read -d $'\0' -r compiled_file; do
+					compiled_files+=("${compiled_file}")
+				done < <(find "${path%/*}/__pycache__" "(" -name "${base_module_name}.*.py[co]" -o -name "${base_module_name}\$py.class" ")" -print0)
+			fi
+			compiled_files+=("${path}c" "${path}o" "${path%.py}\$py.class")
+		fi
+
+		for compiled_file in "${compiled_files[@]}"; do
+			[[ ! -f "${compiled_file}" ]] && continue
+			dir="${compiled_file%/*}"
+			dir="${dir##*/}"
+			if [[ "${compiled_file}" == *.py[co] ]]; then
+				if [[ "${dir}" == "__pycache__" ]]; then
+					base_module_name="${compiled_file##*/}"
+					base_module_name="${base_module_name%.*py[co]}"
+					base_module_name="${base_module_name%.*}"
+					py_file="${compiled_file%__pycache__/*}${base_module_name}.py"
+				else
+					py_file="${compiled_file%[co]}"
+				fi
+				if [[ "${EBUILD_PHASE}" == "postinst" ]]; then
+					[[ -f "${py_file}" && "${compiled_file}" -nt "${py_file}" ]] && continue
+				else
+					[[ -f "${py_file}" ]] && continue
+				fi
+				_python_vecho "<<< ${compiled_file%[co]}[co]"
+				rm -f "${compiled_file%[co]}"[co]
+			elif [[ "${compiled_file}" == *\$py.class ]]; then
+				if [[ "${dir}" == "__pycache__" ]]; then
+					base_module_name="${compiled_file##*/}"
+					base_module_name="${base_module_name%\$py.class}"
+					py_file="${compiled_file%__pycache__/*}${base_module_name}.py"
+				else
+					py_file="${compiled_file%\$py.class}.py"
+				fi
+				if [[ "${EBUILD_PHASE}" == "postinst" ]]; then
+					[[ -f "${py_file}" && "${compiled_file}" -nt "${py_file}" ]] && continue
+				else
+					[[ -f "${py_file}" ]] && continue
+				fi
+				_python_vecho "<<< ${compiled_file}"
+				rm -f "${compiled_file}"
+			else
+				die "${FUNCNAME}(): Unrecognized file type: '${compiled_file}'"
+			fi
+
+			# Delete empty parent directories.
+			dir="${compiled_file%/*}"
+			while [[ "${dir}" != "${root}" ]]; do
+				if rmdir "${dir}" 2> /dev/null; then
+					_python_vecho "<<< ${dir}"
+				else
+					break
+				fi
+				dir="${dir%/*}"
+			done
+		done
+	done
+}
+
+# @FUNCTION: python_mod_optimize
+# @USAGE: [--allow-evaluated-non-sitedir-paths] [-d directory] [-f] [-l] [-q] [-x regular_expression] [--] <file|directory> [files|directories]
+# @DESCRIPTION:
+# Byte-compile specified Python modules.
+# -d, -f, -l, -q and -x options passed to this function are passed to compileall.py.
+#
+# This function can be used only in pkg_postinst() phase.
+python_mod_optimize() {
+	if [[ "${EBUILD_PHASE}" != "postinst" ]]; then
+		die "${FUNCNAME}() can be used only in pkg_postinst() phase"
+	fi
+
+	_python_check_python_pkg_setup_execution
+	_python_initialize_prefix_variables
+
+	if ! has "${EAPI:-0}" 0 1 2 || _python_package_supporting_installation_for_multiple_python_abis || _python_implementation || [[ "${CATEGORY}/${PN}" == "sys-apps/portage" ]]; then
+		# PYTHON_ABI variable cannot be local in packages not supporting installation for multiple Python ABIs.
+		local allow_evaluated_non_sitedir_paths="0" dir dirs=() evaluated_dirs=() evaluated_files=() file files=() iterated_PYTHON_ABIS options=() other_dirs=() other_files=() previous_PYTHON_ABI="${PYTHON_ABI}" return_code root site_packages_dirs=() site_packages_files=() stderr stderr_line
+
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			if has "${EAPI:-0}" 0 1 2 3 && [[ -z "${PYTHON_ABIS}" ]]; then
+				die "${FUNCNAME}(): python_pkg_setup() or python_execute_function() not called"
+			fi
+			iterated_PYTHON_ABIS="${PYTHON_ABIS}"
+		else
+			if has "${EAPI:-0}" 0 1 2 3; then
+				iterated_PYTHON_ABIS="${PYTHON_ABI:=$(PYTHON --ABI)}"
+			else
+				iterated_PYTHON_ABIS="${PYTHON_ABI}"
+			fi
+		fi
+
+		# Strip trailing slash from EROOT.
+		root="${EROOT%/}"
+
+		while (($#)); do
+			case "$1" in
+				--allow-evaluated-non-sitedir-paths)
+					allow_evaluated_non_sitedir_paths="1"
+					;;
+				-l|-f|-q)
+					options+=("$1")
+					;;
+				-d|-x)
+					options+=("$1" "$2")
+					shift
+					;;
+				--)
+					shift
+					break
+					;;
+				-*)
+					die "${FUNCNAME}(): Unrecognized option '$1'"
+					;;
+				*)
+					break
+					;;
+			esac
+			shift
+		done
+
+		if [[ "${allow_evaluated_non_sitedir_paths}" == "1" ]] && ! _python_package_supporting_installation_for_multiple_python_abis; then
+			die "${FUNCNAME}(): '--allow-evaluated-non-sitedir-paths' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+		fi
+
+		if [[ "$#" -eq 0 ]]; then
+			die "${FUNCNAME}(): Missing files or directories"
+		fi
+
+		while (($#)); do
+			if [[ "$1" =~ ^($|(\.|\.\.|/)($|/)) ]]; then
+				die "${FUNCNAME}(): Invalid argument '$1'"
+			elif ! _python_implementation && [[ "$1" =~ ^/usr/lib(32|64)?/python[[:digit:]]+\.[[:digit:]]+ ]]; then
+				die "${FUNCNAME}(): Paths of directories / files in site-packages directories must be relative to site-packages directories"
+			elif [[ "$1" =~ ^/ ]]; then
+				if _python_package_supporting_installation_for_multiple_python_abis; then
+					if [[ "${allow_evaluated_non_sitedir_paths}" != "1" ]]; then
+						die "${FUNCNAME}(): Absolute paths cannot be used in ebuilds of packages supporting installation for multiple Python ABIs"
+					fi
+					if [[ "$1" != *\$* ]]; then
+						die "${FUNCNAME}(): '$1' has invalid syntax"
+					fi
+					if [[ "$1" == *.py ]]; then
+						evaluated_files+=("$1")
+					else
+						evaluated_dirs+=("$1")
+					fi
+				else
+					if [[ -d "${root}$1" ]]; then
+						other_dirs+=("${root}$1")
+					elif [[ -f "${root}$1" ]]; then
+						other_files+=("${root}$1")
+					elif [[ -e "${root}$1" ]]; then
+						eerror "${FUNCNAME}(): '${root}$1' is not a regular file or a directory"
+					else
+						eerror "${FUNCNAME}(): '${root}$1' does not exist"
+					fi
+				fi
+			else
+				for PYTHON_ABI in ${iterated_PYTHON_ABIS}; do
+					if [[ -d "${root}$(python_get_sitedir)/$1" ]]; then
+						site_packages_dirs+=("$1")
+						break
+					elif [[ -f "${root}$(python_get_sitedir)/$1" ]]; then
+						site_packages_files+=("$1")
+						break
+					elif [[ -e "${root}$(python_get_sitedir)/$1" ]]; then
+						eerror "${FUNCNAME}(): '$1' is not a regular file or a directory"
+					else
+						eerror "${FUNCNAME}(): '$1' does not exist"
+					fi
+				done
+			fi
+			shift
+		done
+
+		# Set additional options.
+		options+=("-q")
+
+		for PYTHON_ABI in ${iterated_PYTHON_ABIS}; do
+			if ((${#site_packages_dirs[@]})) || ((${#site_packages_files[@]})) || ((${#evaluated_dirs[@]})) || ((${#evaluated_files[@]})); then
+				return_code="0"
+				stderr=""
+				ebegin "Compilation and optimization of Python modules for $(python_get_implementation_and_version)"
+				if ((${#site_packages_dirs[@]})) || ((${#evaluated_dirs[@]})); then
+					for dir in "${site_packages_dirs[@]}"; do
+						dirs+=("${root}$(python_get_sitedir)/${dir}")
+					done
+					for dir in "${evaluated_dirs[@]}"; do
+						eval "dirs+=(\"\${root}${dir}\")"
+					done
+					stderr+="${stderr:+$'\n'}$("$(PYTHON)" -m compileall "${options[@]}" "${dirs[@]}" 2>&1)" || return_code="1"
+					if ! has "$(_python_get_implementation "${PYTHON_ABI}")" Jython PyPy; then
+						"$(PYTHON)" -O -m compileall "${options[@]}" "${dirs[@]}" &> /dev/null || return_code="1"
+					fi
+					_python_clean_compiled_modules "${dirs[@]}"
+				fi
+				if ((${#site_packages_files[@]})) || ((${#evaluated_files[@]})); then
+					for file in "${site_packages_files[@]}"; do
+						files+=("${root}$(python_get_sitedir)/${file}")
+					done
+					for file in "${evaluated_files[@]}"; do
+						eval "files+=(\"\${root}${file}\")"
+					done
+					stderr+="${stderr:+$'\n'}$("$(PYTHON)" -m py_compile "${files[@]}" 2>&1)" || return_code="1"
+					if ! has "$(_python_get_implementation "${PYTHON_ABI}")" Jython PyPy; then
+						"$(PYTHON)" -O -m py_compile "${files[@]}" &> /dev/null || return_code="1"
+					fi
+					_python_clean_compiled_modules "${files[@]}"
+				fi
+				eend "${return_code}"
+				if [[ -n "${stderr}" ]]; then
+					eerror "Syntax errors / warnings in Python modules for $(python_get_implementation_and_version):" &> /dev/null
+					while read stderr_line; do
+						eerror "    ${stderr_line}"
+					done <<< "${stderr}"
+				fi
+			fi
+			unset dirs files
+		done
+
+		if _python_package_supporting_installation_for_multiple_python_abis; then
+			# Restore previous value of PYTHON_ABI.
+			if [[ -n "${previous_PYTHON_ABI}" ]]; then
+				PYTHON_ABI="${previous_PYTHON_ABI}"
+			else
+				unset PYTHON_ABI
+			fi
+		fi
+
+		if ((${#other_dirs[@]})) || ((${#other_files[@]})); then
+			return_code="0"
+			stderr=""
+			ebegin "Compilation and optimization of Python modules placed outside of site-packages directories for $(python_get_implementation_and_version)"
+			if ((${#other_dirs[@]})); then
+				stderr+="${stderr:+$'\n'}$("$(PYTHON ${PYTHON_ABI})" -m compileall "${options[@]}" "${other_dirs[@]}" 2>&1)" || return_code="1"
+				if ! has "$(_python_get_implementation "${PYTHON_ABI}")" Jython PyPy; then
+					"$(PYTHON ${PYTHON_ABI})" -O -m compileall "${options[@]}" "${other_dirs[@]}" &> /dev/null || return_code="1"
+				fi
+				_python_clean_compiled_modules "${other_dirs[@]}"
+			fi
+			if ((${#other_files[@]})); then
+				stderr+="${stderr:+$'\n'}$("$(PYTHON ${PYTHON_ABI})" -m py_compile "${other_files[@]}" 2>&1)" || return_code="1"
+				if ! has "$(_python_get_implementation "${PYTHON_ABI}")" Jython PyPy; then
+					"$(PYTHON ${PYTHON_ABI})" -O -m py_compile "${other_files[@]}" &> /dev/null || return_code="1"
+				fi
+				_python_clean_compiled_modules "${other_files[@]}"
+			fi
+			eend "${return_code}"
+			if [[ -n "${stderr}" ]]; then
+				eerror "Syntax errors / warnings in Python modules placed outside of site-packages directories for $(python_get_implementation_and_version):" &> /dev/null
+				while read stderr_line; do
+					eerror "    ${stderr_line}"
+				done <<< "${stderr}"
+			fi
+		fi
+	else
+		# Deprecated part of python_mod_optimize()
+
+		local myroot mydirs=() myfiles=() myopts=() return_code="0"
+
+		# strip trailing slash
+		myroot="${EROOT%/}"
+
+		# respect EROOT and options passed to compileall.py
+		while (($#)); do
+			case "$1" in
+				-l|-f|-q)
+					myopts+=("$1")
+					;;
+				-d|-x)
+					myopts+=("$1" "$2")
+					shift
+					;;
+				--)
+					shift
+					break
+					;;
+				-*)
+					die "${FUNCNAME}(): Unrecognized option '$1'"
+					;;
+				*)
+					break
+					;;
+			esac
+			shift
+		done
+
+		if [[ "$#" -eq 0 ]]; then
+			die "${FUNCNAME}(): Missing files or directories"
+		fi
+
+		while (($#)); do
+			if [[ "$1" =~ ^($|(\.|\.\.|/)($|/)) ]]; then
+				die "${FUNCNAME}(): Invalid argument '$1'"
+			elif [[ -d "${myroot}/${1#/}" ]]; then
+				mydirs+=("${myroot}/${1#/}")
+			elif [[ -f "${myroot}/${1#/}" ]]; then
+				myfiles+=("${myroot}/${1#/}")
+			elif [[ -e "${myroot}/${1#/}" ]]; then
+				eerror "${FUNCNAME}(): ${myroot}/${1#/} is not a regular file or directory"
+			else
+				eerror "${FUNCNAME}(): ${myroot}/${1#/} does not exist"
+			fi
+			shift
+		done
+
+		# set additional opts
+		myopts+=(-q)
+
+		PYTHON_ABI="${PYTHON_ABI:-$(PYTHON --ABI)}"
+
+		ebegin "Compilation and optimization of Python modules for $(python_get_implementation) $(python_get_version)"
+		if ((${#mydirs[@]})); then
+			"$(PYTHON ${PYTHON_ABI})" "${myroot}$(python_get_libdir)/compileall.py" "${myopts[@]}" "${mydirs[@]}" || return_code="1"
+			"$(PYTHON ${PYTHON_ABI})" -O "${myroot}$(python_get_libdir)/compileall.py" "${myopts[@]}" "${mydirs[@]}" &> /dev/null || return_code="1"
+			_python_clean_compiled_modules "${mydirs[@]}"
+		fi
+
+		if ((${#myfiles[@]})); then
+			"$(PYTHON ${PYTHON_ABI})" "${myroot}$(python_get_libdir)/py_compile.py" "${myfiles[@]}" || return_code="1"
+			"$(PYTHON ${PYTHON_ABI})" -O "${myroot}$(python_get_libdir)/py_compile.py" "${myfiles[@]}" &> /dev/null || return_code="1"
+			_python_clean_compiled_modules "${myfiles[@]}"
+		fi
+
+		eend "${return_code}"
+	fi
+}
+
+# @FUNCTION: python_mod_cleanup
+# @USAGE: [--allow-evaluated-non-sitedir-paths] [--] <file|directory> [files|directories]
+# @DESCRIPTION:
+# Delete orphaned byte-compiled Python modules corresponding to specified Python modules.
+#
+# This function can be used only in pkg_postrm() phase.
+python_mod_cleanup() {
+	if [[ "${EBUILD_PHASE}" != "postrm" ]]; then
+		die "${FUNCNAME}() can be used only in pkg_postrm() phase"
+	fi
+
+	_python_check_python_pkg_setup_execution
+	_python_initialize_prefix_variables
+
+	local allow_evaluated_non_sitedir_paths="0" dir iterated_PYTHON_ABIS PYTHON_ABI="${PYTHON_ABI}" root search_paths=() sitedir
+
+	if _python_package_supporting_installation_for_multiple_python_abis; then
+		if has "${EAPI:-0}" 0 1 2 3 && [[ -z "${PYTHON_ABIS}" ]]; then
+			die "${FUNCNAME}(): python_pkg_setup() or python_execute_function() not called"
+		fi
+		iterated_PYTHON_ABIS="${PYTHON_ABIS}"
+	else
+		if has "${EAPI:-0}" 0 1 2 3; then
+			iterated_PYTHON_ABIS="${PYTHON_ABI:-$(PYTHON --ABI)}"
+		else
+			iterated_PYTHON_ABIS="${PYTHON_ABI}"
+		fi
+	fi
+
+	# Strip trailing slash from EROOT.
+	root="${EROOT%/}"
+
+	while (($#)); do
+		case "$1" in
+			--allow-evaluated-non-sitedir-paths)
+				allow_evaluated_non_sitedir_paths="1"
+				;;
+			--)
+				shift
+				break
+				;;
+			-*)
+				die "${FUNCNAME}(): Unrecognized option '$1'"
+				;;
+			*)
+				break
+				;;
+		esac
+		shift
+	done
+
+	if [[ "${allow_evaluated_non_sitedir_paths}" == "1" ]] && ! _python_package_supporting_installation_for_multiple_python_abis; then
+		die "${FUNCNAME}(): '--allow-evaluated-non-sitedir-paths' option cannot be used in ebuilds of packages not supporting installation for multiple Python ABIs"
+	fi
+
+	if [[ "$#" -eq 0 ]]; then
+		die "${FUNCNAME}(): Missing files or directories"
+	fi
+
+	if ! has "${EAPI:-0}" 0 1 2 || _python_package_supporting_installation_for_multiple_python_abis || _python_implementation || [[ "${CATEGORY}/${PN}" == "sys-apps/portage" ]]; then
+		while (($#)); do
+			if [[ "$1" =~ ^($|(\.|\.\.|/)($|/)) ]]; then
+				die "${FUNCNAME}(): Invalid argument '$1'"
+			elif ! _python_implementation && [[ "$1" =~ ^/usr/lib(32|64)?/python[[:digit:]]+\.[[:digit:]]+ ]]; then
+				die "${FUNCNAME}(): Paths of directories / files in site-packages directories must be relative to site-packages directories"
+			elif [[ "$1" =~ ^/ ]]; then
+				if _python_package_supporting_installation_for_multiple_python_abis; then
+					if [[ "${allow_evaluated_non_sitedir_paths}" != "1" ]]; then
+						die "${FUNCNAME}(): Absolute paths cannot be used in ebuilds of packages supporting installation for multiple Python ABIs"
+					fi
+					if [[ "$1" != *\$* ]]; then
+						die "${FUNCNAME}(): '$1' has invalid syntax"
+					fi
+					for PYTHON_ABI in ${iterated_PYTHON_ABIS}; do
+						eval "search_paths+=(\"\${root}$1\")"
+					done
+				else
+					search_paths+=("${root}$1")
+				fi
+			else
+				for PYTHON_ABI in ${iterated_PYTHON_ABIS}; do
+					search_paths+=("${root}$(python_get_sitedir)/$1")
+				done
+			fi
+			shift
+		done
+	else
+		# Deprecated part of python_mod_cleanup()
+
+		search_paths=("${@#/}")
+		search_paths=("${search_paths[@]/#/${root}/}")
+	fi
+
+	_python_clean_compiled_modules "${search_paths[@]}"
+}
+
+# ================================================================================================
+# ===================================== DEPRECATED FUNCTIONS =====================================
+# ================================================================================================
+
+fi # _PYTHON_ECLASS_INHERITED