turtle_fun.py

import turtle


def draw_multi_color_shape(t_turtle, size):
    """Make turtle t_turtle draw a multi-colour shape based on size passed in."""
    
    colors = ['#2424FF', '#aaa', '#FF2424', '#ccc', '#24FF24', '#000']
    
    for color in colors:
        t_turtle.color(color)
        t_turtle.forward(size)
        t_turtle.left(135)

        
def create_turtle(speed, pensize):
    """Returns a configured turtule"""
    
    turt = turtle.Turtle()
    turt.speed(speed)
    turt.pensize(pensize)
    
    return turt


def move_turtle(t_turtle, forward, right):
    """Move t_turtle forward and then right"""
    t_turtle.forward(forward)
    t_turtle.right(right)

# Setup the screen for drawing
wn = turtle.Screen()
wn.bgcolor("#fff")

# Create our turtle
tess = create_turtle(0, 3.5)

# Lift turtle and move it
tess.up()
tess.goto(0, 250)
tess.down()

# Start coloring for the turtle
tess.begin_fill()

# Begin actually drawing
square_size = 30
square_rotation = 8
for i in range(45):
    draw_multi_color_shape(tess, square_size)
    square_size += square_rotation
    move_turtle(tess, square_size, square_rotation)

tess.end_fill()

wn.exitonclick()