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Turtle exercise
Flag of the United States
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import turtle as otto
width = 390
height = 208
stripe_height = height // 13
left = -width / 2
top = height / 2
canton_width = width * 2 // 5
canton_height = stripe_height * 7
def draw_rectangle(x, y, rectangle_width, rectangle_height, color):
otto.penup()
otto.goto(x, y)
otto.setheading(0)
otto.pendown()
otto.color(color)
otto.begin_fill()
for _ in range(2):
otto.forward(rectangle_width)
otto.right(90)
otto.forward(rectangle_height)
otto.right(90)
otto.end_fill()
def draw_star(center_x, center_y):
# Draw a five-pointed star.
otto.penup()
otto.goto(center_x, center_y + 5)
otto.setheading(-72)
otto.pendown()
otto.color("white")
otto.begin_fill()
for _ in range(5):
otto.forward(10)
otto.right(144)
otto.end_fill()
# Draw 13 alternating red and white stripes.
# Draw the blue rectangle over the upper-left stripes.
# Draw nine alternating rows of six and five white stars.
# Set the pen width to 2 units and draw a black outline around the flag's outside edge.