create a black hole in Python

from turtle import *
color('red', 'black')
begin_fill()
while True:
    backward(100)
    left(70)
    forward(200)
    right(140)
    forward(50)
    right(20)
    forward(90)
    left(40)
    if abs(pos()) < 1:
        break
end_fill()
done()