From 57d0b56435ea2b88f48d6af6ce279e9001ea9b8b Mon Sep 17 00:00:00 2001
From: Julien Gacon <gaconju@gmail.com>
Date: Thu, 16 Feb 2023 10:59:38 +0100
Subject: [PATCH] Fix sparse matrix conversion for
 `SciPy<Real/Imaginary>Evolver` (Qiskit/qiskit-terra#9598)

* Fix missing indent

* add reno

---------

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
---
 .../time_evolvers/classical_methods/evolve.py             | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/qiskit_algorithms/time_evolvers/classical_methods/evolve.py b/qiskit_algorithms/time_evolvers/classical_methods/evolve.py
index e0500266..c170a29e 100644
--- a/qiskit_algorithms/time_evolvers/classical_methods/evolve.py
+++ b/qiskit_algorithms/time_evolvers/classical_methods/evolve.py
@@ -109,10 +109,10 @@ def _operator_to_matrix(operator: BaseOperator | PauliSumOp):
                 "Trying dense computation",
                 type(operator),
             )
-        try:
-            op_matrix = operator.to_matrix()
-        except AttributeError as ex:
-            raise AlgorithmError(f"Unsupported operator type `{type(operator)}`.") from ex
+            try:
+                op_matrix = operator.to_matrix()
+            except AttributeError as ex:
+                raise AlgorithmError(f"Unsupported operator type `{type(operator)}`.") from ex
     return op_matrix