from turtle import *
from random import *

speed (0)

def rect (xMin, yMin, xMax, yMax):
        color ('black', 'black')

        up ()
        goto (xMin, yMin)
        down ()

        begin_fill ()
        goto (xMax, yMin)
        goto (xMax, yMax)
        goto (xMin, yMax)
        goto (xMin, yMin)
        end_fill ()
        
xMin = random.randrange(-300,300)
yMin = random.randrange(-300,300) 
xMax = random.randrange(-300,300) 
yMax = random.randrange(-300,300)



rect(xMin, yMin, xMax, yMax)


done ()