# Tk_random_color.py

# Tk_random_color.py

import Tkinter
from random import randint

def random_color():
    rgb = tuple([randint(0,255) for _ in 'rgb'])
    print rgb
    rgb = '#%02x%02x%02x'%rgb
    print rgb
    print
    root.configure(bg=rgb)
#

root = Tkinter.Tk()
root.wm_geometry('200x200')
Tkinter.Button(root, text="Press Me!", bg='white', fg='red', command=random_color).pack()

root.mainloop()