import turtle as tr
import random as rnd

tr.speed(500)
for j in range(100):
    tr.penup
    x = position = rnd.randint(-200, 200)
    y = position = rnd.randint(-150, 150)
    tr.goto(x_position,y_position)
    tr.pendown
pen_size = rnd.randint(1, 5)
tr.pensize(pen_size)
for i in range(3):
    tr.fd(150
    tr.lt(120)
    tr.done()    
