Issue #26282: PyArg_ParseTupleAndKeywords() and Argument Clinic now support
positional-only and keyword parameters in the same function.
diff --git a/Lib/test/test_capi.py b/Lib/test/test_capi.py
index a0746f0..6852381 100644
--- a/Lib/test/test_capi.py
+++ b/Lib/test/test_capi.py
@@ -527,6 +527,31 @@
self.assertRaises(ValueError, _testcapi.parse_tuple_and_keywords,
(), {}, b'', [42])
+ def test_positional_only(self):
+ parse = _testcapi.parse_tuple_and_keywords
+
+ parse((1, 2, 3), {}, b'OOO', ['', '', 'a'])
+ parse((1, 2), {'a': 3}, b'OOO', ['', '', 'a'])
+ with self.assertRaisesRegex(TypeError,
+ 'Function takes at least 2 positional arguments \(1 given\)'):
+ parse((1,), {'a': 3}, b'OOO', ['', '', 'a'])
+ parse((1,), {}, b'O|OO', ['', '', 'a'])
+ with self.assertRaisesRegex(TypeError,
+ 'Function takes at least 1 positional arguments \(0 given\)'):
+ parse((), {}, b'O|OO', ['', '', 'a'])
+ parse((1, 2), {'a': 3}, b'OO$O', ['', '', 'a'])
+ with self.assertRaisesRegex(TypeError,
+ 'Function takes exactly 2 positional arguments \(1 given\)'):
+ parse((1,), {'a': 3}, b'OO$O', ['', '', 'a'])
+ parse((1,), {}, b'O|O$O', ['', '', 'a'])
+ with self.assertRaisesRegex(TypeError,
+ 'Function takes at least 1 positional arguments \(0 given\)'):
+ parse((), {}, b'O|O$O', ['', '', 'a'])
+ with self.assertRaisesRegex(SystemError, 'Empty parameter name after \$'):
+ parse((1,), {}, b'O|$OO', ['', '', 'a'])
+ with self.assertRaisesRegex(SystemError, 'Empty keyword'):
+ parse((1,), {}, b'O|OO', ['', 'a', ''])
+
@unittest.skipUnless(threading, 'Threading required for this test.')
class TestThreadState(unittest.TestCase):