<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def show_explorer(self):

 """Show the explorer"""

        if self.dockwidget is not None:
            if self.dockwidget.isHidden():
                self.dockwidget.show()
            self.dockwidget.raise_()
            self.dockwidget.update()