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I am using Python's (2.7) argparse facility and would like to automatically sort the help it produces alphabetically by option. By default help entries are sorted in the order they are added*, as in: p = argparse.ArgumentParser(description='Load duration curves and other plots') p.add_argument('--first', '-f', type=int, default=1, help='First Hour') p.add_argument('--dur', '-d', type=int, default=-1, help='Duration in Hours. Use -1 for all') p.add_argument('--title', '-t', help='Plot Title (for all plots), default=file name') p.add_argument('--interp', '-i', action="store_true", default=True, help='Use linear interpolation for smoother curves') ... args = p.parse_args() Which when called as python script -h produces: usage: script.py [-h] [--first FIRST] [--dur DUR] [--title TITLE] [--interp] Load duration curves and other plots optional arguments: -h, --help show this help message and exit --first FIRST, -f FIRST First Hour --dur DUR, -d DUR Duration in Hours. Use -1 for all --title TITLE, -t TITLE Plot Title (for all plots), default=file name --interp, -i Use linear interpolation for smoother curves Is it possible to automatically sort them alphabetically instead? This would be dur, first, h, interp, title. *Obviously the work around is to manually maintain by adding entries using p.add_argument in alphabetical added order but I am trying to avoid doing so.

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