Issue #25805: Skip a test for test_pkgutil when __name__ == __main__.

Thanks to SilentGhost for the patch.

Lib/test/test_pkgutil.py

@@ -413,6 +413,7 @@ class ImportlibMigrationTests(unittest.TestCase):
             self.assertIsNotNone(pkgutil.get_loader("test.support"))
             self.assertEqual(len(w.warnings), 0)
 
+    @unittest.skipIf(__name__ == '__main__', 'not compatible with __main__')
     def test_get_loader_handles_missing_loader_attribute(self):
         global __loader__
         this_loader = __loader__

Misc/NEWS

@@ -96,6 +96,9 @@ Library
 Tests
 -----
 
+- Issue #25805: Skip a test in test_pkgutil as needed that doesn't work when
+  ``__name__ == __main__``. Patch by SilentGhost.
+
 - Issue #27472: Add test.support.unix_shell as the path to the default shell.
 
 - Issue #27369: In test_pyexpat, avoid testing an error message detail that