Install this version:
emerge -a =dev-python/billiard-4.3.1
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-python/billiard-4.3.1
Or alternatively:
emerge --autounmask-write -a =dev-python/billiard-4.3.1
# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
PYTHON_COMPAT=( python3_{10..15} )
DISTUTILS_USE_PEP517=setuptools
inherit distutils-r1 pypi
DESCRIPTION="Python multiprocessing fork used by dev-python/celery"
HOMEPAGE="https://github.com/celery/billiard"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~x86"
RESTRICT="test"