--- setup.py.orig	2026-01-20 10:02:30
+++ setup.py	2026-01-20 10:02:41
@@ -30,11 +30,7 @@
     'stone>=2,<3.3.3',
 ]
 
-setup_requires = [
-    # Pin pytest-runner to 5.2.0, since 5.3.0 uses `find_namespaces` directive, not supported in
-    # Python 2.7
-    'pytest-runner==5.2.0',
-]
+setup_requires = []
 
 # WARNING: This imposes limitations on test/requirements.txt such that the
 # full Pip syntax is not supported. See also