To me anything that affects the visuals of the code without the semantics is a formatting issue -- so tabs vs spaces (and how many) for indents, space after fun

To me anything that affects the visuals of the code without the semantics is a formatting issue -- so tabs vs spaces (and how many) for indents, space after function names (before parameter lists), space between operators, whether camelCase or something else, Foo.foo or Foo.Foo or foo.foo or..., etc. They're all formatting. But that wasn't my point really, which was just that despite its forced indentation, Python still has, in my personal experience, its own formatting debates.