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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_busy(self):
 """Hide the question group box and enable the busy cursor."""

        self.progress_bar.show()
        self.question_group.setEnabled(False)
        self.question_group.setVisible(False)
        enable_busy_cursor()
        self.repaint()
        qApp.processEvents()
        self.busy = True