@staticmethod
    def _column_delete(ovsrec_row, column, ovsrec_del):
        value = getattr(ovsrec_row, column)
        try:
            value.remove(ovsrec_del)
        except __HOLE__:
            # Datum.to_python() with _uuid_to_row trims down deleted
            # references. If ovsrec_del.delete() is called before
            # _column_delete(), value doesn't include ovsrec_del.
            pass

        VSCtlContext._column_set(ovsrec_row, column, value)
dataset/ETHPy150Open osrg/ryu/ryu/lib/ovs/vsctl.py/VSCtlContext._column_delete