from turtle import Screen, Pen
   import colorsys

   screen = Screen()
   screen.title("Rainbow Spiral")

   pen = Pen()
   pen.speed('fastest')

   hue = 0.0  # range is 0.0 to 1.0

   for i in range(200):
    color = colorsys.hsv_to_rgb(hue, 1, 1)  # pen wants RGB
    pen.pencolor(color)
    pen.forward(i * 2)  # double size
    pen.right(121)  # 120 degrees is an equilateral triangle
    hue += 0.005  # increment by 1/200

   pen.hideturtle()

   screen.exitonclick()

   import random
   from turtle import Turtle, Screen

   tim = Turtle()
   tim.shape("classic")

   def turtle_color():
    R = random.random()
    G = random.random()
    B = random.random()
    return tim.pencolor(R, G, B)


   tim.speed("fastest")


   for _ in range(72):
    turtle_color()
    tim.circle(100)
    tim.left(5)


   screen = Screen()
   screen.exitonclick()

   import turtle
   tina = turtle.Turtle()
   tina.shape('turtle')

   tina.penup()
   tina.goto(30,-150)
   tina.pendown()
   tina.circle(130)
   tina.penup()
   tina.goto(0,0)
   tina.pendown()
   tina.circle(20)
   tina.circle(10)
   tina.penup()
   tina.forward(60)
   tina.right(45)
   tina.pendown()
   tina.circle(30)
   tina.circle(10)
   tina.penup()
   tina.right(90)
   tina.forward(90)
   tina.pendown()
   tina.circle(40)
   tina.penup()
   tina.goto(25,-25)

   filter_list([1,2,'a','b']) == [1,2]
   filter_list([1,'a','b',0,15]) == [1,0,15]
   filter_list([1,2,'aasf','1','123',123]) == [1,2,123]

   import turtle
   t = turtle.Turtle()
   list1 = ["purple","red","orange","blue","green"]
   turtle.bgcolor("black") 
   for i in range(200):
    t.color(list1[i%5])
    t.pensize(i/10+1)
    t.forward(i)
    t.left(59)