def update_editor ( self ):
        user_value = self._get_user_value()
        try:
            unequal = bool( user_value != self.value )
        except ValueError:
            # This might be a numpy array.
            unequal = True

        if unequal:
            self._no_update = True
            self.control.SetValue( self.str_value )
            self._no_update = False

        if self._error is not None:
            self._error     = None
            self.ui.errors -= 1
            self.set_error_state( False )

    #---------------------------------------------------------------------------
    #  Gets the actual value corresponding to what the user typed:
    #---------------------------------------------------------------------------
Updates the editor when the object trait changes externally to the
dataset/ETHPy150Open enthought/traitsui/traitsui/wx/text_editor.py/SimpleEditor.update_editor