title: Turtle Window issue
body: <p>I am running into an issue after I close the window after running the code below. The program runs smoothly, draws a recursive pattern and exits when I click close, however, the program window pauses and I have to force shut it down which also closes the kernel and restarts the kernel. What could be causing this?</p>
  
  <pre><code>import turtle
  
  myTurtle = turtle.Turtle()
  myWin = turtle.Screen()
  
  def drawSpiral(myTurtle, lineLen):
      if lineLen &gt; 0:
      myTurtle.forward(lineLen)
      myTurtle.right(90)
      drawSpiral(myTurtle,lineLen-5)
  
  drawSpiral(myTurtle,100)
  myWin.exitonclick()
  </code></pre>