TurtleSpiral.py

import turtle as T
from random import randint

def spiral(linefun, incr=4, angle=30, iterations = 30):
    for i in xrange(0,iterations):
        linefun(i*incr)
        T.left(angle)

def regular_line(length):
    T.forward(length)

def fuzzy_line(length):
    for i in xrange(0,length):
        T.forward(1)
        if i % 2 == 0:
            T.right(90)
            hairlen = randint(0,10)
            T.forward(hairlen)
            T.right(180)
            T.penup()
            T.forward(hairlen)
            T.pendown()
            T.right(90)

if __name__ == "__main__":
    T.reset() #put the turtle back at (0,0)
    T.speed(0) # set turtle speed to fastest
    T.pendown() # ready the turtle for drawing

    spiral(fuzzy_line, angle=77) # create our drawing