mirror of https://github.com/python/cpython
#10680: fix mutually exclusive arguments in argument groups.
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@ -1482,6 +1482,7 @@ class _ArgumentGroup(_ActionsContainer):
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self._defaults = container._defaults
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self._has_negative_number_optionals = \
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container._has_negative_number_optionals
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self._mutually_exclusive_groups = container._mutually_exclusive_groups
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def _add_action(self, action):
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action = super(_ArgumentGroup, self)._add_action(action)
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@ -2505,6 +2505,46 @@ class TestMutuallyExclusiveOptionalsMixed(MEMixin, TestCase):
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'''
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class TestMutuallyExclusiveInGroup(MEMixin, TestCase):
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def get_parser(self, required=None):
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parser = ErrorRaisingArgumentParser(prog='PROG')
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titled_group = parser.add_argument_group(
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title='Titled group', description='Group description')
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mutex_group = \
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titled_group.add_mutually_exclusive_group(required=required)
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mutex_group.add_argument('--bar', help='bar help')
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mutex_group.add_argument('--baz', help='baz help')
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return parser
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failures = ['--bar X --baz Y', '--baz X --bar Y']
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successes = [
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('--bar X', NS(bar='X', baz=None)),
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('--baz Y', NS(bar=None, baz='Y')),
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]
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successes_when_not_required = [
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('', NS(bar=None, baz=None)),
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]
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usage_when_not_required = '''\
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usage: PROG [-h] [--bar BAR | --baz BAZ]
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'''
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usage_when_required = '''\
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usage: PROG [-h] (--bar BAR | --baz BAZ)
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'''
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help = '''\
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optional arguments:
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-h, --help show this help message and exit
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Titled group:
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Group description
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--bar BAR bar help
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--baz BAZ baz help
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'''
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class TestMutuallyExclusiveOptionalsAndPositionalsMixed(MEMixin, TestCase):
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def get_parser(self, required):
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