From 0c096610cd8af4c047e0fc2e330163d35ed5f72a Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Sun, 12 Jul 2026 17:06:44 +0200
Subject: [PATCH] python3Packages.numexpr: relax thread limit hook

and install pytest-run-parallel for pytest thread-unsafe mark.
---
 pkgs/development/python-modules/numexpr/default.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/numexpr/default.nix b/pkgs/development/python-modules/numexpr/default.nix
index 426b53e7814d..39c0a4e673af 100644
--- a/pkgs/development/python-modules/numexpr/default.nix
+++ b/pkgs/development/python-modules/numexpr/default.nix
@@ -3,6 +3,7 @@
   buildPythonPackage,
   fetchPypi,
   numpy,
+  pytest-run-parallel,
   pytestCheckHook,
   setuptools,
   # sets NUMEXPR_NUM_THREADS and OMP_NUM_THREADS for packages
@@ -34,12 +35,18 @@ buildPythonPackage rec {
     ln -s ${numpy.cfg} site.cfg
   '';
 
-  nativeCheckInputs = [ pytestCheckHook ];
+  nativeCheckInputs = [
+    pytest-run-parallel
+    pytestCheckHook
+  ];
 
   propagatedNativeBuildInputs = [
     checkPhaseThreadLimitHook
   ];
 
+  # tests check for OMP_NUM_THREADS application and complete quick enough
+  env.dontLimitCheckPhaseThreads = 1;
+
   preCheck = ''
     pushd $out
   '';