[3.11] gh-115341: Fix loading unit tests with doctests in -OO mode (GH-115342) (GH-115672)

miss-islington · serhiy-storchaka · web-flow · commit 0bb94f49e342 · 2024-02-19T17:54:59.000Z
(cherry picked from commit 872cc99) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
diff --git a/Lib/doctest.py b/Lib/doctest.py
@@ -2197,13 +2197,13 @@ def __init__(self, test, optionflags=0, setUp=None, tearDown=None,
         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)
