Install this version:
emerge -a =dev-python/curio-1.6
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-python/curio-1.6
Or alternatively:
emerge --autounmask-write -a =dev-python/curio-1.6
# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
DISTUTILS_USE_PEP517=setuptools
PYTHON_COMPAT=( pypy3 pypy3_11 python3_{10..13} )
inherit distutils-r1 pypi
DESCRIPTION="Curio is a library for performing concurrent I/O with coroutines in Python 3."
HOMEPAGE="https://github.com/dabeaz/curio"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE=""
DEPEND=""
RDEPEND="${DEPEND}"
RESTRICT="!test? ( test )"
distutils_enable_tests pytest
python_test() {
epytest -vv || die "tests fail with ${EPYTHON}"
}