python猛蛇绘制

#pythonDraw.py
import turtle as t
t.setup(650,350,200,200)
t.penup()
t.fd(-250)
t.pendown()
t.pencolor("purple")
t.seth(-40)
for i in range(4):
    t.circle(40,80)
    t.circle(-40,80)
t.circle(40,80/2)
t.fd(40)
t.circle(16,180)
t.fd(40*2/3)
t.done()