The anchor option allow us to control where to place the item relative to the position passed as its first argument to canvas.create_text(). By default, this option value is tk.CENTER, which means that the text widget is centered on these coordinates.

If you want to place the text on the upper-left corner of the canvas, you can do so by passing the (0, 0) position and setting the anchor option to tk.NW, aligning the origin to the north-west of the rectangular area the text is placed within:

        # ...
        options = { "font": "courier", "fill": "blue",
                    "activefill": "red", "anchor": tk.NW }
        self.text_id = self.canvas.create_text((0, 0), **options)

The preceding code snippet will give us the following result: