Setting up PyQT5 && Mariadb CRUD Application on Fedora Server 34

Code posted below is actually a kind of POC and may be freely modified any way you like. It is testing standard connection setup Python 3.9.5 to native Fedora’s Mariadb-Server running on Server Edition Fedora 34 with Deepin Desktop installed. Here I have to notice then on KDE Plasma 5.20 Desktop instance on the same server seems to be a better choice for PyQT5 windowing running CRUD application with any of Mariadb 10.5 or PostgreSQL 13.2 .