From e2ac98752c7ac3c6584c5b352e1f4c607fae85e3 Mon Sep 17 00:00:00 2001
From: Paul Fadler <58314121+pfadler@users.noreply.github.com>
Date: Mon, 11 Aug 2025 19:18:40 +0200
Subject: [PATCH] remove superfluous reference removed from upstream

triqs renamed U_matrix to U_matrix_slater in https://github.com/TRIQS/triqs/commit/e7310c8cec45e2d1b536a5b5cdade46a347b27cb
As such importing U_matrix breaks the operator test.
Since U_matrix is just being imported and otherwise unused removing it allows the test to run properly again
---
 pyed/tests/test_operator_utils.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyed/tests/test_operator_utils.py b/pyed/tests/test_operator_utils.py
index dc1f654..b8e1a65 100644
--- a/pyed/tests/test_operator_utils.py
+++ b/pyed/tests/test_operator_utils.py
@@ -13,7 +13,7 @@
 
 from triqs.operators import n, c, c_dag, Operator, dagger
 
-from triqs.operators.util.U_matrix import U_matrix_kanamori, U_matrix
+from triqs.operators.util.U_matrix import U_matrix_kanamori
 from triqs.operators.util.hamiltonians import h_int_kanamori
 
 from transform_kanamori import h_int_kanamori_transformed