Figuras con la libreria TKinter

from Tkinter import *
root = Tk()
root.title('figura')

rectangulo = Canvas(width=210, height=210, bg='black')
rectangulo.pack(expand=YES, fill=BOTH)
rectangulo.create_rectangle(10, 20, 200, 200, width=5, fill='red')


root.mainloop()

from Tkinter import *

root = Tk() 
root.title('figura')

rectangulo = Canvas(width=210, height=210, bg='back')
rectangulo.pack(expand=YES, fill=BOTH)
rectangulo.create_rectangle(10, 20, 200, 200, width=5, fill='red')


root.mainloop()

from Tkinter import * 

root = Tk()

root.title('figura')

linea = Canvas(width=210, height=210, bg='black')

linea.pack(expand=YES, fill=BOTH)

linea.create_line(0, 200, 200, 0, width=10, fill='green')

root.mainloop()