class TkRoot(tk.Tk):
    def __init__(self):
        tk.Tk.__init__(self)
        main_window = MainWindow.create(parent=self)
        main_window.grid()

class MainWindow(tk.Frame):
    @staticmethod
    def create(parent, num_rows=10, num_columns=10):
        window = MainWindow(parent)
        for rows in range(num_rows):
            return window.grid_rowconfigure(rows, weight=1)
        for cols in range(num_columns):
            return window.grid_columnconfigure(cols, weight=1)

    def __init__(self, parent):
        tk.Frame.__init__(self, parent=None)
        self.parent = parent

    def make_widgets(self):
        for n in range(10):
            lbl = tk.Label(parent=self, text="wat")
            lbl.grid(row=lambda r=n: r, column=lambda c=n:c, sticky='')