Bind variable to RadioButton : Radiobutton « Tkinker « Python Tutorial

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Python Tutorial » Tkinker » Radiobutton   18. 26. 6. Bind variable to RadioButton from Tkinter import * def sel():     selection = "You selected the option " + str(var.get())     label.config(text = selection) root = Tk() var = IntVar() Radiobutton(root, text="Option 1", variable=var, value=1, command=sel).pack(anchor=W) Radiobutton(root, text="Option 2", variable=var, value=2, command=sel).pack(anchor=W) Radiobutton(root, text="Option 3", variable=var, value=3, command=sel).pack(anchor=W) label = Label(root) label.pack() root.mainloop() 18. 26. Radiobutton 18. 26. 1.  Radio buttons, the easy way 18. 26. 2.  Hold on to your radio variables (an obscure thing, indeed) 18. 26. 3.  Deselect for radio buttons simply sets the button's associated value to a null string 18. 26. 4.  See what happens when some buttons have same value 18. 26. 5.  Add RadioButton to a group 18. 26. 6.  Bind variable to RadioButton 18. 26. 7.  Radio button bar 18. 26. 8.  Use Radio buttons to change the font

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