Extended support for different V2 transpilers from different backends…

…. (backport #879) (#882) * Added checks for different transpiler types (#879) (cherry picked from commit e1859dd) * Update constraints.txt --------- Co-authored-by: M. Emre Sahin <[email protected]> Co-authored-by: Edoardo Altamura <[email protected]>
qiskit-community · Dec 19, 2024 · a713dde · a713dde
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commit a713dde
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/qiskit_machine_learning/neural_networks/estimator_qnn.py b/qiskit_machine_learning/neural_networks/estimator_qnn.py
@@ -183,7 +183,10 @@ def __init__(
                 self.num_virtual_qubits = circuit.num_qubits
             else:
                 circuit = pass_manager.run(circuit)
-                self.num_virtual_qubits = circuit.layout._input_qubit_count
+                if hasattr(circuit.layout, "_input_qubit_count"):
+                    self.num_virtual_qubits = circuit.layout._input_qubit_count
+                else:
+                    self.num_virtual_qubits = circuit.num_qubits
 
         self._org_circuit = circuit
 

diff --git a/qiskit_machine_learning/neural_networks/sampler_qnn.py b/qiskit_machine_learning/neural_networks/sampler_qnn.py
@@ -209,7 +209,10 @@ def __init__(
                 self.num_virtual_qubits = circuit.num_qubits
             else:
                 circuit = pass_manager.run(circuit)
-                self.num_virtual_qubits = circuit.layout._input_qubit_count
+                if hasattr(circuit.layout, "_input_qubit_count"):
+                    self.num_virtual_qubits = circuit.layout._input_qubit_count
+                else:
+                    self.num_virtual_qubits = circuit.num_qubits
 
         self._org_circuit = circuit