def on_breakpoint_file_selected(self, event):
        if event.widget.selection():
            filename = event.widget.focus()
            self.show_file(filename=filename)

            # Clear any currently selected item on the stack tree
            self.stack.selection_remove(self.stack.selection())
Calculate the Greatest Common Divisor of a and b.
dataset/ETHPy150Open pybee/bugjar/bugjar/view.py/MainWindow.on_breakpoint_file_selected--crossover with--dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/python/Lib/fractions.py/gcd