from tkinter import *

class Example(Frame):

def __init__(self, parent):

Frame.__init__(self, parent)

self.parent = parent

self.initUI()

def initUI(self):

self.parent.title("Colors")

self.pack(fill=BOTH, expand=1)

canvas = Canvas(self)

canvas.create_rectangle(30, 10, 120, 80,

outline="#fb0", fill="#fb0")

canvas.create_rectangle(150, 10, 240, 80,

outline="#f50", fill="#f50")

canvas.create_oval( 10, 10, 1, 2, fill="#f50")

canvas.create_rectangle(270, 10, 370, 80,

outline="#05f", fill="#05f")

canvas.pack(fill=BOTH, expand=1)

def main():

root = Tk()

ex = Example(root)

root.geometry("400x100+300+300")

root.mainloop()

if __name__ == '__main__':

main()