myturtles.py

from turtle import *

shape('turtle')
speed(0) #this line makes the turtle go faster

def square(sidelength=100):
    for i in range(4):
        forward(sidelength)
        right(90)

def triangle(sidelength = 100):
    for i in range(3):
        forward(sidelength)
        right(120)

def polygon(sides,sidelength = 100):
    for i in range(sides):
        forward(sidelength)
        right(360/sides)


def squareCircle():
    '''Draws a circle of squares'''
    for i in range(60):
        square(200)
        right(5)

def star(sidelength = 200):
    for i in range(5):
        forward(sidelength)
        right(144)

def starSpiral():
    length = 5
    for i in range(60):
        star(length)
        length += 5
        rt(5)
        
#call the function you want to execute here:
starSpiral()