- Issue #17041: Fix testing when Python is configured with the

  --without-doc-strings option.

tests/test_build_ext.py

@@ -77,8 +77,9 @@ class BuildExtTestCase(support.TempdirManager,
         self.assertEqual(xx.foo(2, 5), 7)
         self.assertEqual(xx.foo(13,15), 28)
         self.assertEqual(xx.new().demo(), None)
-        doc = 'This is a template module just for instruction.'
-        self.assertEqual(xx.__doc__, doc)
+        if test_support.HAVE_DOCSTRINGS:
+            doc = 'This is a template module just for instruction.'
+            self.assertEqual(xx.__doc__, doc)
         self.assertTrue(isinstance(xx.Null(), xx.Null))
         self.assertTrue(isinstance(xx.Str(), xx.Str))