from random import *
import tkinter
canvas=tkinter.Canvas(bg='black',width=1000,height=800)
canvas.pack()
x=10
y=10
for i in range(1,26):
    x=x+20
    y=y+20
    canvas.create_line(x,10,510,y,fill='white',width=2)
    canvas.update()
    canvas.after(100)