Connecting with encoding='UTF8'—as DB_NCHARSET is set so, and same with 'utf-8'—I get 'DPY-3012: national character set id 871 is not supported by python-oracledb in thin mode'.
I do not want a national character set, but good standard 'utf-8'.
What is the "Thin" mode for, when it does not support the basics, or do I misinterpret things? Is there a work-around or missing extra parameter?

So I propose the enhancement: Thin mode should support DB_NCHARSET 'UTF8'.