missing deb dependency: isc-kea-ctrl-agent should require python3-isc-kea-connector
Here's what happened on ubuntu 20.04:
#apt install isc-kea-ctrl-agent
# which kea-shell
/usr/sbin/kea-shell
root@tycho:/etc/kea# kea-shell
Traceback (most recent call last):
File "/usr/sbin/kea-shell", line 27, in <module>
from kea_conn import CARequest # CAResponse
ModuleNotFoundError: No module named 'kea_conn'
root@tycho:/etc/kea# dpkg -S kea-shell
isc-kea-ctrl-agent: /usr/sbin/kea-shell
isc-kea-ctrl-agent: /usr/share/man/man8/kea-shell.8.gz
To get kea_conn module, you need to install python3-isc-kea-connector.