import random, turtle

def rwalk(t, d, n):
    for i in range(n):
        r = random.randint(0,7)
        a = 45*r
        t.seth(a)
        t.forward(d)
    return

def rwalk2(t1, t2, d, n):
    for i in range(n):
        r1 = random.randint(0,7)
        a1 = 45*r1
        r2 = random.randint(0,7)
        a2 = 45*r2
        t1.seth(a1)
        t1.forward(d)
        t2.seth(a2)
        t2.forward(d)
    return

#------------
        
bob = turtle.Turtle()
alice = turtle.Turtle()
bob.up()
bob.goto(-100,100)
bob.down()

alice.up()
alice.goto(100,-100)
alice.down()

rwalk2(alice, bob, 20, 100)