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Editorial Team
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Asked: 2026-06-17T12:22:37+00:00

I have a new script that I need to write in perl, to leverage

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I have a new script that I need to write in perl, to leverage our perl codebase (no, I can’t convert it, not yet anyway). Our coding standards dictate Getopt::Long::GetOptions() but I realize my option handling would be greatly improved and simplified if I could just drop python’s optparse.OptionParser into it. The things I like in python: validation of inputs, both formats and required/optional, and auto help string generation based on argument config.

Any tips? I know I could roll my own, but I’d rather use someone else’s work if it’s already been done.

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  1. Editorial Team

    The canonical tool is Getopt::Long. It’s not "declarative" as such. Is there some specific behavior you are trying to replicate?

    EDIT: For more power, you might be interested in App::Cmd or parts of it (see also App::Cmd::Tutorial).

    Internally this uses Getopt::Long::Descriptive which seems to meet most of your requirements. This might be especially useful for you because internally it uses Getopt::Long and Params::Validate, so it might be very easy to move your current code base but now have validation.

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