          logger.debug(tab_name)
          return self.subnotebook.children[tab_name]
  
  
  class DisplayOptionalPage(DisplayPage):
      """ Parent Context Sensitive Display Tab """
  
      def __init__(self, parent, tabname, helptext, waittime):
          DisplayPage.__init__(self, parent, tabname, helptext)
  
 
</s> remove class DisplayPage(ttk.Frame):
 </s> add class DisplayPage(ttk.Frame):  # pylint: disable=too-many-ancestors </s> remove         plt.subplots_adjust(left=0.100,
                            bottom=0.100,
                            right=0.95,
                            top=0.95,
                            wspace=0.2,
                            hspace=0.2)
 </s> add         self.fig.subplots_adjust(left=0.100,
                                 bottom=0.100,
                                 right=0.95,
                                 top=0.95,
                                 wspace=0.2,
                                 hspace=0.2)
class DisplayOptionalPage(DisplayPage):  # pylint: disable=too-many-ancestors
          logger.debug(tab_name)
          return self.subnotebook.children[tab_name]
  
  
class DisplayOptionalPage(DisplayPage):  # pylint: disable=too-many-ancestors
      """ Parent Context Sensitive Display Tab """
  
      def __init__(self, parent, tabname, helptext, waittime):
          DisplayPage.__init__(self, parent, tabname, helptext)
  
keep keep keep keep replace keep keep keep keep keep
 bigfix: RuntimeWarning: More than 20 figures have been opened. 
lib/gui/display_page.py