turtle graphics design

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from turtle import *

import colorsys

bgcolor('black')

hideturtle()

speed(0)

hue = 0.0

for i in range(210):

    color = colorsys.hsv_to_rgb(hue,1,1)

    pencolor(color)

    hue+=0.005

    fd(i)

    circle(30)

    left(10)

    rt(40)

    fd(20)

   

     

done()