random python 3 turtle

paul2.py

import turtle
import random

rosi = turtle.Turtle()
rosi.speed(0)
rosi.shape("turtle")
rosi.pensize(2)
rosi.pencolor("green")
rosi.fillcolor("red")
rosi.goto(-100,-50)
rosi.k = 0.12

susi = turtle.Turtle()
susi.speed(0)
susi.shape("turtle")
susi.pensize(2)
susi.pencolor("red")
susi.fillcolor("blue")
susi.goto(100,-20)
susi.k = 0.245

franzi = turtle.Turtle()
franzi.speed(0)
franzi.shape("turtle")
franzi.pensize(2)
franzi.pencolor("black")
franzi.fillcolor("purple")
franzi.goto(0,20)
franzi.k = 0.053


rosi.clear()
susi.clear()
franzi.clear()
rosi.setheading(0)
susi.setheading(120)
franzi.setheading(240)

for x in range(100):
    for t in (rosi, susi, franzi):
        t.fd(random.randint(-20,90))
        t.left(random.randint(-30,30))
        if random.random() < t.k:
            radius = random.randint(20, 120)
            winkel = random.randint(0, 360)
            vorzeichen = random.choice((1,-1))
            t.circle(radius, winkel * vorzeichen)
        if t == rosi and t.distance((0,0)) > 500:
            #t.penup()
            #t.home()
            #t.pendown()
            t.setheading(t.towards(0,0))
            t.fd(random.randint(100,600))
        if t == susi and t.distance(rosi) > 500:
            t.setheading(t.towards(rosi))
            t.fd(random.randint(400,600))
        if t == franzi and t.distance(susi) > 500:
            t.setheading(t.towards(susi))
            t.fd(random.randint(400,600))
        
        
turtle.exitonclick()