diff options
| -rw-r--r-- | Lib/argparse.py | 1 | ||||
| -rw-r--r-- | Lib/test/test_argparse.py | 8 |
2 files changed, 8 insertions, 1 deletions
diff --git a/Lib/argparse.py b/Lib/argparse.py index 2677ef63e9..2fb1da59f9 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -857,7 +857,6 @@ class BooleanOptionalAction(Action): def __init__(self, option_strings, dest, - const=None, default=None, type=None, choices=None, diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py index e82a0c39c2..22cae626cc 100644 --- a/Lib/test/test_argparse.py +++ b/Lib/test/test_argparse.py @@ -700,6 +700,14 @@ class TestBooleanOptionalAction(ParserTestCase): ('--no-foo --foo', NS(foo=True)), ] + def test_const(self): + # See bpo-40862 + parser = argparse.ArgumentParser() + with self.assertRaises(TypeError) as cm: + parser.add_argument('--foo', const=True, action=argparse.BooleanOptionalAction) + + self.assertIn("got an unexpected keyword argument 'const'", str(cm.exception)) + class TestBooleanOptionalActionRequired(ParserTestCase): """Tests BooleanOptionalAction required""" |