On Thu, 17 May 2012 14:26:50 -0700 (PDT)
Miki Tebeka <[email protected]> wrote:
> Greetings,
>
> I'd like to have an --edit option in my program. That if not specified will
> not open editor. If specified without value will open default editor
> ($EDITOR) and if specified with value, assume this value is the editor
> program to run.
This looks like a job for 'const':
parser.add_argument('-e', '--edit', help='open editor on log', nargs='?',
const="$EDITOR")
I think that does what you want.
HTH,
John
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