I press tab in emacs and it inserts or removes the right amount of spaces to indent the line. I press newline and it creates a new line with the correct space b

I press tab in emacs and it inserts or removes the right amount of spaces to indent the line. I press newline and it creates a new line with the correct space based indentation. If I'm in Python I can press tab multiple times to cycle through indentation levels or do it manually with space and the deletion keys.