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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 _enter_plotting(self, fontsize=9):
 """assumes that a figure is open """

        # interactive_status = matplotlib.is_interactive()
        self.original_fontsize = pyplot.rcParams['font.size']
        pyplot.rcParams['font.size'] = fontsize
        pyplot.hold(False)  # opens a figure window, if non exists
        pyplot.ioff()