This package does not support Python 3.11. Please test it with Python 3.11 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/abb5788ea81c7bbf4d40a2995b682eb9. Please check the information provided in the tracker. Ask in #gentoo-python on IRC if need any help.
Ping. Python 3.11 is now default.
I have modified the ebuild locally by setting: from PYTHON_COMPAT=( python3_{9..10} ) to PYTHON_COMPAT=( python3_{9..11} ) and I have been able to merge and use this package with my python3_11 setup.