This package does not support Python 3.10. Please test it with Python 3.10 as a matter of urgency as the default will change in early June, as per message on gentoo-dev: https://archives.gentoo.org/gentoo-dev/message/13aa993921f19b6b095297721ffb0d0b. Ask in #gentoo-python on IRC if need any help. $ pkgcheck scan -k PythonCompatUpdate dev-python/rtslib-fb dev-python/rtslib-fb PythonCompatUpdate: version 2.1.74: PYTHON_COMPAT update available: python3_10
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=85a42a301b10ad5c12cbf5e522327662df2e1c27