gridspiral.py

#!/usr/bin/env python3

import math
import turtle

turtle.speed(0)
# turtle.tracer(n=0, delay=0)

def square(length):
    for i in range(4):
        turtle.forward(length)
        turtle.right(90)


def spiral(length=100, angle=90, add=0, steps=4):
    a = 3
    turtle.right(a)
    for i in range(steps):
        h = length / math.cos(math.radians(a))
        turtle.forward(h)
        length -= h * math.sin(math.radians(a))
        turtle.right(angle + a)


for i in range(-2, 3):
    for j in range(-2, 3):
        turtle.goto(j*80, i*80)
        # square(80)
        turtle.setheading(45)
        turtle.circle(56.5, steps=4)
        turtle.setheading(0)
        spiral(-80, steps=50)


turtle.update()
turtle.mainloop()