Python login screen for MariaDB db

[^Bart]

> Are you asking for code, or techniques?

Thanks for your reply! :)

I followed the code from the web article but I need to read an example 
of a login form connected to a MariaDB db!

In the web article it's used a file to check data but I need to check 
data to a table in MariaDB or better how and where should I replace code 
from the web article!

^Bart