[Python-3000] Move argv[0]? (Re: Unicode and OS strings) (original) (raw)

Steven Bethard steven.bethard at gmail.com
Tue Sep 18 08:40:47 CEST 2007

On 9/17/07, Ron Adam <rrr at ronadam.com> wrote:

Greg Ewing wrote: > Thomas Wouters wrote: >> If you want to put more meaning in the argv list, use an option >> parser. > > I want to put less meaning in it, not more. :-) > And using an argument parser is often overkill for > simple programs.

Would it be possible to split out the (pre) parsing from optparse so that instead of returning a list, it returns a dictionary of attributes and values? This would only contain what was given in the command line as a first "lighter weight" step to parsing the command line. opts = optparser(argv) commandname = opts['argv0'] # better name for argv0?

You might look at argparse_ which allows you to treat positional arguments just like optional ones. So you'd write::

parser = argparse.ArgumentParser()
parser.add_argument('command') # positional argument
parser.add_argument('--option') # optional argument
args = parser.parse_args()
... args.command ...
... args.option ...

If you're really insistent on a dict interface instead of an attribute interface, the object returned by parse_args() is just a simple namespace, so vars(args) will give you a dict.

.. _argparse: http://argparse.python-hosting.com/

STeVe

I'm not in-sane. Indeed, I am so far out of sane that you appear a tiny blip on the distant coast of sanity. --- Bucky Katt, Get Fuzzy

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