import turtle 

turtle.pensize(5)
turtle.color('blue')
turtle.shape('blank')
turtle.bgcolor('green')
turtle.penup()
turtle.goto(-500,0)
turtle.pendown()
turtle.goto(500,0)
turtle.goto(0,400)
turtle.goto(-500,0)

turtle.mainloop()

import turtle 

turtle.pensize(5)
turtle.color('blue')
turtle.shape('blank')
turtle.bgcolor('green')
turtle.penup()
turtle.goto(-500,0)
turtle.pendown()
turtle.goto(500,0)
turtle.goto(0,400)
turtle.goto(-500,0)

turtle.mainloop()
