Python语言，求解急，大佬求解

import turtle

t = turtle.Turtle()

t.speed(0)
t.pd()
t.color('yellow', 'yellow')
t.begin_fill()
for i in range(8):
    t.forward(300)
    t.left(135)
t.end_fill()
t.pu()

t.hideturtle()
turtle.done()