# -*- coding: utf-8 -*-
import tkinter as tk
#import tkinter.ttk as ttk
root = tk.Tk()
root.title("tk36.py")
#####################################
ca = tk.Canvas(root, bg = 'lightgreen', 
        relief = 'raised', bd = 5, width = 500, height = 500)
ca.pack()
rec = ca.create_rectangle(10,10,100,100,fill = 'blue', 
                          width = 5, outline = 'white', dash = (3,))


#####################################
root.mainloop()