--- python.eclass
+++ python.eclass
@@ -2226,7 +2226,7 @@
 	# Check if phase is pkg_postinst().
 	[[ "${EBUILD_PHASE}" != "postinst" ]] && die "${FUNCNAME}() can be used only in pkg_postinst() phase"
 
-	if ! has "${EAPI:-0}" 0 1 2 || _python_package_supporting_installation_for_multiple_python_abis; then
+	if ! has "${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=()
 
@@ -2533,7 +2533,7 @@
 	fi
 
 	if [[ "$#" -gt 0 ]]; then
-		if ! has "${EAPI:-0}" 0 1 2 || _python_package_supporting_installation_for_multiple_python_abis; then
+		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'"