from tkinter import * canvas_width = 500 canvas_height = 150 def paint( event ): python_green = "#476042" x1, y1 = ( event.x - 1 ), ( event.y - 1 ) x2, y2 = ( event.x + 1 ), ( event.y + 1 ) w.create_oval( x1, y1, x2, y2, fill = python_green ) master = Tk() master.title( "Painting using Ovals" ) w = Canvas(master, width=canvas_width, height=canvas_height) w.pack(expand = YES, fill = BOTH) w.bind( "<B1-Motion>", paint ) message = Label( master, text = "Press and Drag the mouse to draw" ) message.pack( side = BOTTOM ) mainloop()