Python turtle print TaiChi

import turtle
turtle.pensize(20)
turtle.pencolor("black")
turtle.penup()
turtle.goto(0,300)
turtle.down()
turtle.begin_fill()
turtle.fillcolor("black")
turtle.circle(-300,180)
turtle.circle(-150,180)
turtle.circle(150,180)
turtle.end_fill()

turtle.circle(300,180)
turtle.penup()
turtle.goto(-20,-170)
turtle.pendown()
turtle.pencolor("white")
turtle.begin_fill()
turtle.fillcolor("white")
turtle.circle(20,360)
turtle.end_fill()

turtle.penup()
turtle.goto(-20,140)
turtle.pendown()
turtle.begin_fill()
turtle.fillcolor("black")
turtle.pencolor("black")
turtle.circle(20,360)
turtle.end_fill()