Quiz making in Tkinter with RadioButton and CommandButton -


i'm trying create quiz in tkinter. i'd use radiobuttons multiple choices, don't know how connect selected choice commandbutton. found similar program 1 i'm trying create,but still don't understand it. please me?

i fail understand why in function called call(par) , command command =lambda: call(correct.get())

    import tkinter tk     root = tk.tk()      def call(par):         if par:             lab2 = tk.label(root, text='corect!!!!').grid(row=4)         else:             lab2 = tk.label(root, text='of corse wrong').grid(row=4)             lab2 = tk.label(root, text='how stupid?').grid(row=5)      correct  = tk.booleanvar()     rad = tk.radiobutton(root, text='yes', variable=correct, value=true)     rad2 = tk.radiobutton(root, text='no', variable=correct, value=false)     lab = tk.label(root, text='is maker awsome?')     btn = tk.button(root, text='submit', command=lambda: call(correct.get()))      lab.grid(row=0)     rad.grid(row=2, column=0)     rad2.grid(row=2, column=1)     btn.grid(row=3)      tk.mainloop()


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