Issue #21578: Fixed misleading error message when ImportError called with

invalid keyword args.

1 files changed, 17 insertions, 0 deletions

diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py
index 458ddc1..96c3a48 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -1096,6 +1096,23 @@ class ImportErrorTests(unittest.TestCase):
         self.assertEqual(exc.name, 'somename')
         self.assertEqual(exc.path, 'somepath')
 
+        msg = "'invalid' is an invalid keyword argument for this function"
+        with self.assertRaisesRegex(TypeError, msg):
+            ImportError('test', invalid='keyword')
+
+        with self.assertRaisesRegex(TypeError, msg):
+            ImportError('test', name='name', invalid='keyword')
+
+        with self.assertRaisesRegex(TypeError, msg):
+            ImportError('test', path='path', invalid='keyword')
+
+        with self.assertRaisesRegex(TypeError, msg):
+            ImportError(invalid='keyword')
+
+        msg = "'invalid|another' is an invalid keyword argument for this function"
+        with self.assertRaisesRegex(TypeError, msg):
+            ImportError('test', invalid='keyword', another=True)
+
     def test_non_str_argument(self):
         # Issue #15778
         with check_warnings(('', BytesWarning), quiet=True):