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Date: Sat, 24 Dec 2011 05:34:46 +0000
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Subject: Re: merging argparse parsers
From: Jason Friedman <jason@powerpull.net>
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:17832

> I would like to have something like
>
> merged_parser = LoggingParser() + OtherParser()
>
> Which should create an argument parser with all the options composed.
>

I have used parent parsers.

http://docs.python.org/py3k/library/argparse.html#parents

I think in your case merged_parser would become more of a child, like this:

>>> mom_parser = argparse.ArgumentParser(add_help=False)
>>> mom_parser.add_argument('--arg1', type=int)
>>> dad_parser = argparse.ArgumentParser(add_help=False)
>>> dad_parser.add_argument('--arg2', type=int)
>>> child_parser = argparse.ArgumentParser(parents=[mom_parser, dad_parser])