import turtle as t
import math

def hsv_to_rgb(h, s, v):
 if s == 0.0: v*=255; return (v, v, v)
 i = int(h*6.) # XXX assume int() truncates!
 f = (h*6.)-i; p,q,t = int(255*(v*(1.-s))), int(255*(v*(1.-s*f))), int(255*(v*(1.-s*(1.-f)))); v*=255; i%=6
 if i == 0: return (v, t, p)
 if i == 1: return (q, v, p)
 if i == 2: return (p, v, t)
 if i == 3: return (p, q, v)
 if i == 4: return (t, p, v)
 if i == 5: return (v, p, q)

i=0
temp = 0
temp2 = 1
t.speed(0)
while i < 1000000:
 t.color(hsv_to_rgb(temp,1,1))
 t.circle(i)
 t.rt(90)
 t.fd(temp2)
 t.lt(90)
 i += temp2
 temp +=0.001