Вправа 1 (ст.188)

 import random

from tkinter import *

window = Tk()

c= Canvas(window, width=500, height=500)

kolory=["black", "red", "green", "blue", "cyan",

        "yellow", "magenta", "azure", "brown", "coral",

        "grey", "khaki", "olive", "orange", "lavender",

        "ivory", "navy", "orchid", "plum"]

for x in range(0,500,10):

    k=random.choice(kolory)

    c.create_line (x,0,x,500, width=2, fill=k)

    c.pack()

window.mainloop