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Date: Wed, 15 May 2013 09:16:35 -0500 (CDT)
From: Wayne Werner <wayne@waynewerner.com>
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To: Henry Leyh <henry.leyh@ipp.mpg.de>
Subject: Re: Determine actually given command line arguments
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Xref: csiph.com comp.lang.python:45345

On Wed, 15 May 2013, Henry Leyh wrote:
> Yes, I was trying that and it sort of works with strings if I use something 
> sufficiently improbable like "__UNSELECTED__" as default.  But it gets 
> difficult with boolean or even number arguments where you just may not have 
> valid "improbable" defaults.  You could now say, so what, it's the default 
> anyway.  But in my program I would like to distinguish between given and not 
> given arguments rather than between default and non-default.

Have you looked into docopt? It's pretty awesome, and might really help in 
this case.

HTH,
-W