HYTOS

            while len(pool) > 0:

                sign, obj = pool.pop()

                """ check obj is upstream or downstream of spec break """

                matches = [spec_break for spec_break in self._spec_breaks if spec_break.is_connected(obj)]

                            if next_connected: lineMatches = next_connected

                    symbolMatches = [x for x in self._symbols if (x.owner is None or x.owner == start.owner) and (x is not obj) and (x not in visited) and obj.is_connected(x, None)]

                    #print(symbolMatches)

                # order connected objects