Remove the outline of an oval in Tkinter?
<p>By default, the circle I draw on a canvas has a black outline. I'm trying not to use a color, but somehow make the outline disappear.</p>

<pre><code>import tkinter

class Draw:
    def __init__(self):
        self._root_window = tkinter.Tk()
        self._canvas = tkinter.Canvas(master = self._root_window,
                                  width = 500, height = 500,
                                  background = '#1E824C')
        self._canvas.pack()
        self._canvas.create_oval(100,100,250,250, fill = 'white')
        self._root_window.mainloop

if __name__ == '__main__':
    Draw()
</code></pre>

<p><a href="https://i.stack.imgur.com/vGt13.png" rel="noreferrer"><img src="https://i.stack.imgur.com/vGt13.png" alt="enter image description here"></a></p>