import tkinter

class MyGUI:
    def __init__(self):
        self.main_window = tkinter.Tk()

        self.top_frame = tkinter.Frame(self.main_window)
        self.bottom_frame = tkinter.Frame(self.main_window)


        self.value = tkinter.StringVar()
        self.output = tkinter.Label(self.top_frame, textvariable=self.value)
        self.one =tkinter.Button(self.main_window, text='1', command=self.do_something)
        self.two =tkinter.Button(self.main_window, text='2', command=self.do_something)
        self.three =tkinter.Button(self.main_window, text='3', command=self.do_something)
        self.four =tkinter.Button(self.main_window, text='4', command=self.do_something)
        self.five =tkinter.Button(self.main_window, text='5', command=self.do_something)
        self.six =tkinter.Button(self.main_window, text='6', command=self.do_something)
        self.seven =tkinter.Button(self.main_window, text='7', command=self.do_something)
        self.eight =tkinter.Button(self.main_window, text='8', command=self.do_something)
        self.nine =tkinter.Button(self.main_window, text='9', command=self.do_something)
        self.zero =tkinter.Button(self.main_window, text='0', command=self.do_something)

        self.label1 = tkinter.Label(self.top_frame, text='1')
        self.label2 = tkinter.Label(self.top_frame, text='2')
        self.label3 = tkinter.Label(self.top_frame, text='3')

        self.output.pack(side='top')
        self.label1.pack(side='top')
        self.label2.pack(side='top')
        self.label3.pack(side='top')


        self.one.pack(side='left')
        self.two.pack(side='left')
        self.three.pack(side='left')
        self.four.pack(side='left')
        self.five.pack(side='left')
        self.six.pack(side='left')
        self.seven.pack(side='left')
        self.eight.pack(side='left')
        self.nine.pack(side='left')
        self.zero.pack(side='left')

        self.top_frame.pack()
        self.bottom_frame.pack()

        tkinter.mainloop()




    def do_something(self):
        self.value.set(1)

my_gui = MyGUI()