text: import turtle
  turtle.bgcolor("black")
  var1=turtle.Screen()
  var1.title("Animated Circles")
  turtle=turtle.Turtle()
  turtle.color('red')
  turtle.speed(0)
  turtle.hideturtle()
  for i in range(150):
      turtle.circle(i*2)
      turtle._rotate(5)
  var1.mainloop()