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Issue #9343: Document that argparse parent parsers must be configured before their children. (Merge from 3.2.)

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Steven Bethard 2011-03-26 21:51:56 +01:00
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5
Doc/library/argparse.rst
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@ -351,6 +351,11 @@ Note that most parent parsers will specify ``add_help=False``. Otherwise, the
:class:`ArgumentParser` will see two ``-h/--help`` options (one in the parent :class:`ArgumentParser` will see two ``-h/--help`` options (one in the parent
and one in the child) and raise an error. and one in the child) and raise an error.
.. note::
You must fully initialize the parsers before passing them via ``parents=``.
If you change the parent parsers after the child parser, those changes will
not be reflected in the child.
formatter_class formatter_class
^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^

3
Misc/NEWS
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@ -304,6 +304,9 @@ Library
- Issue #8982: Improve the documentation for the argparse Namespace object. - Issue #8982: Improve the documentation for the argparse Namespace object.
- Issue #9343: Document that argparse parent parsers must be configured before
their children.
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