Install this version:
emerge -a =dev-python/cirron-0.4
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-python/cirron-0.4
Or alternatively:
emerge --autounmask-write -a =dev-python/cirron-0.4
# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
DISTUTILS_USE_PEP517=setuptools
PYTHON_COMPAT=( python3_{12..14} )
# upstream sdist uses uppercase project name (Cirron-0.4.tar.gz)
PYPI_PN="Cirron"
PYPI_NO_NORMALIZE=1
inherit distutils-r1 pypi toolchain-funcs
DESCRIPTION="Measure CPU instructions / branch misses / page faults of Python code"
HOMEPAGE="
https://github.com/s7nfo/Cirron
https://pypi.org/project/Cirron/
"
LICENSE="MIT"
SLOT="0"
KEYWORDS="~amd64 ~arm64"
# strace is invoked at runtime by the optional Tracer; perf_event_open is
# kernel-side and always available on stock Gentoo.
RDEPEND="dev-debug/strace"
src_prepare() {
# Upstream lazily compiles cirronlib.cpp at first import, writing into
# its own site-packages dir — that fails as a normal user on a
# system-wide Gentoo install. Pre-build the .so during src_compile and
# add it to package_data so it ships pre-baked.
sed -i \
-e 's|"cirronlib.cpp",|"cirronlib.cpp", "cirronlib.so",|' \
setup.py || die
distutils-r1_src_prepare
}
src_compile() {
$(tc-getCXX) ${CXXFLAGS} ${LDFLAGS} -shared -fPIC \
-o cirron/cirronlib.so cirron/cirronlib.cpp || die "C++ compile failed"
distutils-r1_src_compile
}