Django management command and argparse

Question

I'm trying to create a Django management command with argparse, however whenever I run it, it always returns no such option which is valid, as this message comes from the manage.py:

class Command(BaseCommand):
    def handle(self, *args, **options):
        parser = argparse.ArgumentParser('Parsing arguments')
        parser.add_argument('--max', type=float, store)
        args = parser.parse_args(sys.argv[2:])

What would be the right way to use some argument parser with management commands?

Python version 2.x .

Answer 1

In Django options are parsed with rules given in add_arguments method of BaseCommand. You should add your options to parser.add_argument, which use argparse lib like this:

class Command(BaseCommand):
    help = 'My cool command'

    def add_arguments(self, parser):
        # Named (optional) arguments
        parser.add_argument(
              '--max',
               action='store',
               dest='max',
               type='float',
               default=0.0,
               help='Max value'
        )

    def handle(self, *args, **options):
        print options['max']

Answer 2

Instead, just modify the option_list, as suggested in docs:

from optparse import make_option

class Command(BaseCommand):
    option_list = BaseCommand.option_list + (
        make_option('--max',
            action='store',
            type='float',
            dest='max'), 
        )

    def handle(self, *args, **options):
        print options['max']