Method __init__

Lib/idlelib/sidebar.py:285–292

(self, editwin)

class LineNumbers(BaseSideBar):
    """Line numbers support for editor windows."""
    def __init__(self, editwin):
        super().__init__(editwin)

        end_line_delegator = EndLineDelegator(self.update_sidebar_text)
        # Insert the delegator after the undo delegator, so that line numbers
        # are properly updated after undo and redo actions.
        self.editwin.per.insertfilterafter(end_line_delegator,
                                           after=self.editwin.undo)

    def init_widgets(self):
        _padx, pady = get_widget_padding(self.text)