optparse make_option() equivalent in argparse

[abhishek bhat]

From the OPTPARSE library reference:

option_list = [
    make_option("-f", "--filename",
                action="store", type="string", dest="filename"),
    make_option("-q", "--quiet",
                action="store_false", dest="verbose"),
    ]

parser = OptionParser(option_list=option_list)
___________________________________________________________________________

Like the above example, I want to make a option list using make_option and pass it to a decorator which instantiates the parser and adds the arguments. 

How can this be achieved in argparse? Is there a way to populate the parser other than parse_args()?

[Josh English]

OptParse's make_option is just a synonym for the Option class, and the OptionParser constructor takes a list.  

You could probably create a function like so:

def make_arg_parser(arguments):

    parser = argparse.ArgumentParser()

    for arg in arguments:

        parser.add_argument(arg)

Your arguments constructor could be a tuple of tuples, with no make_option equivalent.

But I think ArgParser's strength is creating subparsers and attaching them to parents so a set of options can be re-used.

Josh