python-oracledb error when open exe file which complied by pyinstaller

Question

I created python app to fetch data from oracle db and display in table grid by tkinter and python-oracledb everything work normal when run on vscode

But after I complied into exe file with this command pyinstaller --onefile --windowed Oracle.py

When I open exe file it's showing error like this

Here is my code

Why exe file having problem while run through vscode no problem?