def __init__(self, textbuffer):
self.undo_stack = UndoStack(MAX_UNDOS)
self._next_action = None
self._buffer = textbuffer
self.after_changed = Listeners()
def __init__(self, textbuffer):
self.undo_stack = UndoStack(MAX_UNDOS)
self._next_action = None
self._buffer = textbuffer
self.after_changed = Listeners()