Thanks for the suggestion!

It seems to be extremely limited, unfortunately. I don't want option processing to cease once I hit this switch.

p=argparse.ArgumentParser()
p.add_argument('--subscipt_args', nargs='...')
#p.add_argument('pos',nargs='*')
p.add_argument('--verbose', action='store_true')

args = p.parse_args('--subscipt_args --foo --bar --baz -- --verbose '.split())

print(args)

usage: test.py [-h] [--subscipt_args ...] [--verbose]
test.py: error: unrecognized arguments: -- --verbose