Python Turtle Graphic Design #10

 Python Turtle Graphic Design #10

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Source code:

import turtle as t

import colorsys as cs

t.setup(640,640)

t.bgcolor('black')

t.tracer(100)

t.hideturtle()

h = 0

for i in range(360,0,-1):

    t.begin_fill()

    t.color(cs.hls_to_rgb(h,0.5,1))

    h+=1/1.6180

    t.circle(i/2)

    t.end_fill()

    t.lt(137.5)

t.done()