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bpo-45235: Fix argparse overrides namespace with subparser defaults (GH-28420)

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Adam Schwalm 2021-09-17 23:20:31 -05:00 • committed by GitHub
parent af08f1ba40
commit a6e8db5e8e
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3 changed files with 15 additions and 6 deletions
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6
Lib/test/test_argparse.py
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@ -3079,6 +3079,12 @@ class TestSetDefaults(TestCase):
xparser.set_defaults(foo=2)
self.assertEqual(NS(foo=2), parser.parse_args(['X']))
def test_set_defaults_on_subparser_with_namespace(self):
parser = argparse.ArgumentParser()
xparser = parser.add_subparsers().add_parser('X')
xparser.set_defaults(foo=1)
self.assertEqual(NS(foo=2), parser.parse_args(['X'], NS(foo=2)))
def test_set_defaults_same_as_add_argument(self):
parser = ErrorRaisingArgumentParser()
parser.set_defaults(w='W', x='X', y='Y', z='Z')