Draw a spiral in Drawbot.

spirals.py

import math

def segment(x, y, a, d, lw):
    save()
    fill(None)
    stroke(1,1,1)
    strokeWidth(lw)
    newPath()
    moveTo((x,y))
    a = math.radians(a)
    px = x+math.sin(a)*d
    py = y+math.cos(a)*d
    lineTo((px,py))
    drawPath()
    restore()
    return px, py
    
newPage(1000,1000)
rect(0,0,1000,1000)
translate(500,500)
scale(2)
x, y = 0,0

steps = 3500
for i in range(steps):
    x, y = segment(x, y, i**0.5 * 416, 20 * i / steps, 3*i/steps )