# Tk_RadioButtons.py

# Tk_RadioButtons.py

from Tkinter import *
import random
import time

root = Tk()
root.resizable(0,0)
root.geometry("300x100")

canvas = Canvas(root)
canvas.pack()

var1=IntVar()
var2=IntVar()

abc='ABC'
def sABC():
   selection="You have selected Option " + str(abc[var1.get()])
   oABC.config(text=selection)

def s123():
   selection="You have selected Option " + str(var2.get())
   x123.config(text=selection)
   var1.set(-1)  # will deselect option sABC instead of var1.deselect()
#
OptionBtn1=Radiobutton(canvas, text="Option A", variable=var1, value=0, command=sABC)
OptionBtn1.grid(row=0, column=1)

OptionBtn2=Radiobutton(canvas, text="Option B", variable=var1, value=1, command=sABC)
OptionBtn2.grid(row=0, column=2)

OptionBtn3=Radiobutton(canvas, text="Option C", variable=var1, value=2, command=sABC)
OptionBtn3.grid(row=0, column=3)

OptionBtn1=Radiobutton(canvas, text="Option 1", variable=var2, value=1, command=s123)
OptionBtn1.grid(row=1, column=1)

OptionBtn2=Radiobutton(canvas, text="Option 2", variable=var2, value=2, command=s123)
OptionBtn2.grid(row=1, column=2)

OptionBtn3=Radiobutton(canvas, text="Option 3", variable=var2, value=3, command=s123)
OptionBtn3.grid(row=1, column=3)

var1.set(2) # sets selection on 'C' for option sABC as default

oABC=Label(canvas, text="Note: 'C' has been set as default")
oABC.grid(columnspan=4, sticky=W)

x123=Label(canvas, text="None Selected")
x123.grid(columnspan=4, sticky=W)

root.mainloop()