Instanciate AIRouting backend attribute for all the cases

Qiskit · Nov 6, 2024 · 75e5ea4 · 75e5ea4
1 parent b31b5fc
commit 75e5ea4
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/qiskit_ibm_transpiler/ai/routing.py b/qiskit_ibm_transpiler/ai/routing.py
@@ -68,9 +68,11 @@ def __init__(
         if backend_name is not None:
             self.backend = backend_name
         elif coupling_map is not None:
-            if isinstance(coupling_map, list):
+            if isinstance(coupling_map, CouplingMap):
+                self.backend = coupling_map
+            elif isinstance(coupling_map, list):
                 self.backend = CouplingMap(coupling_map)
-            elif not isinstance(coupling_map, CouplingMap):
+            else:
                 raise ValueError(
                     f"ERROR. coupling_map should either be a list of int tuples or a Qiskit CouplingMap object."
                 )