(self)
Update errors, warnings and information.

        Default method sets no_file_name if auto_save is enabled but file name
        is not provided; and empty_input if file name is given but there is no
        data.

        Derived classes that define further messages will typically set them in
        this method.
Update errors, warnings and information.
Update errors warnings and information .
def update_messages(self):
        """
        Update errors, warnings and information.

        Default method sets no_file_name if auto_save is enabled but file name
        is not provided; and empty_input if file name is given but there is no
        data.

        Derived classes that define further messages will typically set them in
        this method.
        """
        self.Error.no_file_name(shown=not self.filename and self.auto_save)
        self.Information.empty_input(shown=self.filename and self.data is None)
def update_messages ( self ) : self . Error . no_file_name ( shown = not self . filename and self . auto_save ) self . Information . empty_input ( shown = self . filename and self . data is None )