[Tkinter] Takes 1 Positional Argument but 2 were Given

[Anysja]

This is the code I have.

self.contrast = Scale(root, command=self.editingImage, from_= -100, to = 100, orient = HORIZONTAL)

I am trying to call the function editingImage(self) whenever the scale is moved, but python keeps giving me the error:

TypeError: editingImage() takes 1 positional argument but 2 were given

Why is this? I am only putting in one argument, self. At least I think I am?