[3.2.x] Fixed #32783 -- Fixed crash of autoreloader when __main__ module doesn't have __spec__ attribute.

Regression in ec6d2531c59466924b645f314ac33f54470d7ac3.

Thanks JonathanNickelson for the report.
Backport of 12b19a1d76e1a6f80923c8358290d605dacd65d4 from main

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/utils_tests/test_autoreload.py b/tests/utils_tests/test_autoreload.py
index a43d7c2fde..12034819ee 100644
--- a/tests/utils_tests/test_autoreload.py
+++ b/tests/utils_tests/test_autoreload.py
@@ -213,6 +213,17 @@ class TestChildArguments(SimpleTestCase):
         with self.assertRaisesMessage(RuntimeError, msg):
             autoreload.get_child_arguments()
 
+    @mock.patch('sys.argv', [__file__, 'runserver'])
+    @mock.patch('sys.warnoptions', [])
+    def test_module_no_spec(self):
+        module = types.ModuleType('test_module')
+        del module.__spec__
+        with mock.patch.dict(sys.modules, {'__main__': module}):
+            self.assertEqual(
+                autoreload.get_child_arguments(),
+                [sys.executable, __file__, 'runserver']
+            )
+
 
 class TestUtilities(SimpleTestCase):
     def test_is_django_module(self):