code: def pack(self, **kw):
          
          ttk.Scrollbar.pack(self, **kw)
          try:
              self._pack_kw = self.pack_info()
          except TypeError:
              # bug in some tkinter versions
              self._pack_kw = self._get_info("pack")
          self._layout = 'pack'
docs: Pack a widget in the parent widget.
          
          :param after: pack it after you have packed widget
          :type after: widget
          :param anchor: position anchor according to given direction 
                          ("n", "s", "e", "w" or combinations)
          :type anchor: str
          :param before: pack it before you will pack widget
          :type before: widget
          :param expand: expand widget if parent size grows
          :type expand: bool
          :param fill: "none" or "x" or "y" or "both": fill widget if widget grows
          :type fill: str
          :param in\_: widget to use as container
          :type in\_: widget
          :param ipadx: add internal padding in x direction
          :type ipadx: int
          :param ipady: add internal padding in y direction
          :type ipady: int
          :param padx: add padding in x direction
          :type padx: int
          :param pady: add padding in y irection
          :type pady: int
          :param side: "top" (default), "bottom", "left" or "right": where to add this widget
          :type side: str