Merge branch 'main' into clinic/kwargs-simple

# Conflicts: # Lib/test/test_clinic.py
python · AA-Turner · Sep 18, 2025 · Sep 1, 2025 · Sep 3, 2025 · Sep 3, 2025
commit b213f62baf90b326c3f0e47ac0f03727ea4e2541
@@ -2744,6 +2744,19 @@ def test_var_keyword_with_pos_or_kw_and_kw_only(self):
         err = "Function 'bar' has an invalid parameter declaration (**kwargs?): '**kwds: dict'"
         self.expect_failure(block, err)
 
+    def test_allow_negative_accepted_by_py_ssize_t_converter_only(self):
+        errmsg = re.escape("converter_init() got an unexpected keyword argument 'allow_negative'")
+        unsupported_converters = [converter_name for converter_name in converters.keys()
+                                  if converter_name != "Py_ssize_t"]
+        for converter in unsupported_converters:
+            with self.subTest(converter=converter):
+                block = f"""
+                    module m
+                    m.func
+                        a: {converter}(allow_negative=True)
+                """
+                with self.assertRaisesRegex((AssertionError, TypeError), errmsg):
+                    self.parse_function(block)
 
 class ClinicExternalTest(TestCase):
     maxDiff = None