qiskit/dagcircuit/dagcircuit.py
def get_gate_nodes(self, data=False):
        """Deprecated. Use gate_nodes()."""
        warnings.warn('The method get_gate_nodes() is being replaced by gate_nodes().'
                      'Returning a list of node_ids/(node_id, data) tuples is also '
                      'deprecated, gate_nodes() returns a list of DAGNodes ',
                      DeprecationWarning, 2)
        if data:
            warnings.warn('The parameter data is deprecated, '
                          'get_gate_nodes() now returns DAGNodes '
                          'which always contain the data',
                          DeprecationWarning, 2)

        nodes = []
        for node in self.op_nodes():
            if isinstance(node.op, Gate):
                nodes.append((node._node_id, node))
        if not data:
            nodes = [n[0] for n in nodes]
        return nodes
def get_gate_nodes(self, data=False):
        """Deprecated. Use gate_nodes()."""
        warnings.warn('The method get_gate_nodes() is being replaced by gate_nodes().'
                      'Returning a list of node_ids/(node_id, data) tuples is also '
                      'deprecated, gate_nodes() returns a list of DAGNodes ',
                      DeprecationWarning, 2)
        if data:
            warnings.warn('The parameter data is deprecated, '
                          'get_gate_nodes() now returns DAGNodes '
                          'which always contain the data',
                          DeprecationWarning, 2)

        nodes = []
        for node in self.op_nodes():
            if isinstance(node.op, Gate):
                nodes.append((node._node_id, node))
        if not data:
            nodes = [n[0] for n in nodes]
        return nodes
Deprecated. Use gate_nodes().