Risovalka

from tkinter import *
from tkinter import colorchooser

root = Tk()

def btn_click(event):
    global color
    t = event.widget
    color = t['bg']

colors = ['red', 'orange', 'yellow', 'green', 'cyan', 'blue', 'purple']
for i in range(7):#i = 0, 1, 2, 3, 4, 5, 6
    btn = Button(width = 10, bg = colors[i])
    btn.grid(row = 0, column = i)
    btn.bind('<Button-1>', btn_click)

c = Canvas(width = 500, height = 500, bg = 'white')
c.grid(row = 1, column = 0, columnspan = 7)

lastX = lastY = 0
t = 3
color = 'black'

def save_position(event):
    global lastX, lastY
    lastX = event.x
    lastY = event.y

def on_click(event):
    save_position(event)

def on_drag(event):
    c.create_line(lastX,lastY,event.x, event.y, fill = color, width = t)
    save_position(event)

c.bind('<Button-1>', on_click)
c.bind('<B1-Motion>', on_drag)