Arconfig

Save/Load your options to/into config

>>> from arconfig import GenConfigAction, LoadConfigAction
>>> parser = argparse.ArgumentParser()
>>> parser.add_argument("--config", action=LoadConfigAction) # add it before another options
>>> parser.add_argument("--gen-config", action=GenConfigAction)
>>> parser.add_argument('-s', action='store', dest='simple_value', help='Store a simple value')
>>> parser.add_argument('-c', action='store_const', dest='constant_value',
... const='value-to-store', help='Store a constant value')
>>> parser.add_argument('-t', action='store_true', default=False,
... dest='boolean_switch', help='Set a switch to true')
>>> parser.add_argument('-f', action='store_false', default=False,
... dest='boolean_switch', help='Set a switch to false')

Generate simple config

$ python script.py --gen-config
{
 "simple_value": null,
 "constant_value": null,
 "config": null,
 "boolean_switch": false
}

And load it

$ python argparse_config.py --gen-config > /tmp/test.json
$ python argparse_config.py --config=/tmp/test.json
{
 "simple_value": null,
 "constant_value": null,
 "config": null,
 "gen_config": false,
 "boolean_switch": false
}

All another arguments overwrite the config values (but counter are added).