László Attila Tóth <[email protected]> added the comment:
The fix is something like this for _ArgumentGroup, but as the container may not
be an _ArgumentGroup, it breaks the tests.
--- Lib/argparse.py
+++ Lib/argparse.py
@@ -1635,9 +1640,13 @@ def __init__(self, container, title=None,
description=None, **kwargs):
self._has_negative_number_optionals = \
container._has_negative_number_optionals
self._mutually_exclusive_groups = container._mutually_exclusive_groups
+ self._container = container
def _add_action(self, action):
- action = super(_ArgumentGroup, self)._add_action(action)
+ if self.title:
+ action = super(_ArgumentGroup, self)._add_action(action)
+ else:
+ action = self._container._add_action(action)
self._group_actions.append(action)
----------
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Python tracker <[email protected]>
<https://bugs.python.org/issue46057>
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