def positionErrorReceived(positionError):
        """
        Method called when position error is received.

        @param positioningError: The position error.
        @type positioningError: L{twisted.positioning.base.PositionError}
        """

        Method called when position error is received.

        @param positioningError: The position error.
        @type positioningError: L{twisted.positioning.base.PositionError}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/positioning/ipositioning.py