encode numpy int64 (#659)

Qiskit · Jun 12, 2023 · afbd43c · afbd43c
1 parent 79bafc6
commit afbd43c
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/qiskit_ibm_provider/utils/json.py b/qiskit_ibm_provider/utils/json.py
@@ -203,6 +203,8 @@ def default(self, obj: Any) -> Any:  # pylint: disable=arguments-differ
                 return {"__type__": "ndarray", "__value__": obj.tolist()}
             value = _serialize_and_encode(obj, np.save, allow_pickle=False)
             return {"__type__": "ndarray", "__value__": value}
+        if isinstance(obj, np.int64):
+            return {"__type__": "int", "__value__": int(obj)}
         if isinstance(obj, set):
             return {"__type__": "set", "__value__": list(obj)}
         if isinstance(obj, Result):