How can I stay tab-free in Geany on Ubuntu?

Question

How can I stay tab free in Geany on Ubuntu?

When I am coding in Python, tabs have always annoyed me. And the TAB is invisible. So strange.

When I open my code by

Answer 1

DTing is right but on thing to remember: You have to close all files (tabs) in Geany and open them up again to have the new settings work in each file. It took me days to figure out that I not only have to close geany and open it up again but that I also have to re-open each file seperately.