Format Document pep8

Hi, I just started with the Python course, and yesterday I followed what Mosh said and set the settings so that everytime I saved the code would be formatted in order to follow pep8, however today, when I’m saving the code it doesnt follow pep8 it doesnt auto-correct itself. I rewatched the video where he indicates how to do it, and although I have everything as he says it doesnt work. Anyone knows why this happens? Thanks