qiskit/transpiler/layout.py
def copy(self):
        """Returns a copy of a Layout instance."""
        layout_copy = type(self)()

        layout_copy._p2v = self._p2v.copy()
        layout_copy._v2p = self._v2p.copy()

        return layout_copy
def copy(self):
        """Returns a copy of a Layout instance."""
        layout_copy = type(self)()

        layout_copy._p2v = self._p2v.copy()
        layout_copy._v2p = self._v2p.copy()

        return layout_copy
Returns a copy of a Layout instance.