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| Message-Id | <2635961.LZWGnKmheA@PointedEars.de> |
| From | Thomas 'PointedEars' Lahn <PointedEars@web.de> |
| Reply-To | Thomas 'PointedEars' Lahn <usenet@PointedEars.de> |
| Organization | PointedEars Software (PES) |
| Date | Thu, 12 May 2011 22:22:20 +0200 |
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| Subject | Re: Customize help output from optparse (or argparse) |
| Newsgroups | comp.lang.python |
| References | <MPG.2836013fca77f958989809@news.individual.de> |
| Followup-To | comp.lang.python |
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Thorsten Kampe wrote: > I'm using optparse for a little Python script. > > 1. The output from "--help" is: > """ > Usage: script.py <arg> > > script.py does something > > Options: > -h, --help show this help message and exit > """ > > I would prefer to have the description before the usage, like... > """ > script.py does something > > Usage: script.py <arg> > > Options: > -h, --help show this help message and exit > """ > > 2. The output from "--doesnotexit" is: > """ > Usage: script.py <arg> > > script.py: error: no such option: --doesnotexist > """ > > I would prefer to have the error first, then the usage and additionally > the options, like... > """ > script.py: error: no such option: --doesnotexist > > Usage: script.py <arg> > > Options: > -h, --help show this help message and exit > """ > > Is that possible with either optparse or the "new kid on the block" > argparse. If so how? You can easily have #1 with optparse.OptionParser(usage="…")¹, but optparse is deprecated in favor of argparse.ArgumentParser. I do not think you can have #2 with either optparse or argparse: OptionParser() would print the error message last, and ArgumentParser() would not print the description on error. Subclassing ArgumentParser might be feasible, though. ______ ¹ <http://PointedEars.de/devel/tools/text/odfinfo/> -- PointedEars Bitte keine Kopien per E-Mail. / Please do not Cc: me.
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Customize help output from optparse (or argparse) Thorsten Kampe <thorsten@thorstenkampe.de> - 2011-05-12 15:38 +0200
Re: Customize help output from optparse (or argparse) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-05-12 22:22 +0200
Re: Customize help output from optparse (or argparse) Karim <karim.liateni@free.fr> - 2011-05-12 22:40 +0200
Re: Customize help output from optparse (or argparse) Thorsten Kampe <thorsten@thorstenkampe.de> - 2011-05-21 23:53 +0200
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