From 872cc9957a9c8b971448e7377fad865f351da6c9 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Mon, 19 Feb 2024 19:03:21 +0200
Subject: gh-115341: Fix loading unit tests with doctests in -OO mode
 (GH-115342)

---
 Lib/doctest.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/doctest.py b/Lib/doctest.py
index 1969777..6049423 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -2225,13 +2225,13 @@ class DocTestCase(unittest.TestCase):
         unittest.TestCase.__init__(self)
         self._dt_optionflags = optionflags
         self._dt_checker = checker
-        self._dt_globs = test.globs.copy()
         self._dt_test = test
         self._dt_setUp = setUp
         self._dt_tearDown = tearDown
 
     def setUp(self):
         test = self._dt_test
+        self._dt_globs = test.globs.copy()
 
         if self._dt_setUp is not None:
             self._dt_setUp(test)
-- 
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