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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def show(self, block_command_line=False, block_timing=0.05):
 """ Shows the window and raises it. If block_command_line is 0, this will start the window up and allow you to monkey with the command line at the same time. Otherwise, the window will block the command line and process events every block_timing seconds. """


        self._is_open = True
        self._window.show()
        self._window.raise_()

        # start the blocking loop
        if block_command_line:

            # stop when the window closes
            while self._is_open:
                _a.processEvents()
                _t.sleep(block_timing)

            # wait a moment in case there is some shutdown stuff.
            _t.sleep(0.5)

        return self