title: Why nothing happen when I run Turtle in Pycharm?
body: <p>Below is my code. However, nothing happened when I run this code in Pycharm Community Edition 2017.1.2. Can anyone help me to debug this issue? Thx.</p>
  
  <pre><code>import turtle
  
  def draw_square():
      window=turtle.Screen()
      window.bgcolor("red")
      victor=turtle.Turtle()
      victor.forward(100)
  
      window.exitonclick()
      turtle.done()
  
  draw_square()
  </code></pre>