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Date: Fri, 28 Jun 2013 18:36:37 -0700
From: Ethan Furman <ethan@stoneleaf.us>
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Subject: Re: Why is the argparse module so inflexible?
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Xref: csiph.com comp.lang.python:49396

On 06/27/2013 03:49 PM, Steven D'Aprano wrote:
>
> [rant]
> I think it is lousy design for a framework like argparse to raise a
> custom ArgumentError in one part of the code, only to catch it elsewhere
> and call sys.exit. At the very least, that ought to be a config option,
> and off by default.
>
> Libraries should not call sys.exit, or raise SystemExit. Whether to quit
> or not is not the library's decision to make, that decision belongs to
> the application layer. Yes, the application could always catch
> SystemExit, but it shouldn't have to.

So a library that is explicitly designed to make command-line scripts easier and friendlier should quit with a traceback?

Really?

--
~Ethan~