moved up to python 3.9 and added real encryption.
To use real encryption run zbxdb.py -g (or --genkey) to generate a key file in the etc/keys/ directory. On next startup zbxdb.py will try to re-key using the latest available key. Be sure that all active processes are using the latest key before removing an older key .....
zbxdb.py auto restarts when it see's there is a new version installed and also when a new key is present in the etc/keys/. So, normally within a minute all processes are using the latest key.