Kod źródłowy do postu na temat dodawania nowych poleceń w Django i manage.py znajdujący się pod adresem https://blog.mloza.pl/django-dodawanie-obslugi-nowych-komend-przez-manage-py

args.py

 def add_arguments(self, parser):
        parser.add_argument('-d', '--display',
            action='store_true',
            default=False,
            dest='show',
            help='display text')

base-command.py

from django.core.management import BaseCommand


class Command(BaseCommand):
    def handle(self, *args, **options):
        self.stdout.write("Basic command")

command.py

from django.core.management import BaseCommand


class Command(BaseCommand):
    def add_arguments(self, parser):

        parser.add_argument("-r", "--repeat", help="how many times repeat text", default=1, type=int)

        parser.add_argument('-d', '--display',
            action='store_true',
            dest='show',
            default=False,
            help='display text')

    def handle(self, *args, **options):
        self.stdout.write("Basic command")

        if options['show']:
            for i in range(0, options['repeat']):
                self.stdout.write("Optional text")

handle.py

    def handle(self, *args, **options):
        print("Basic command")

        if options['show']:
            self.stdout.write("Optional text")

handle2.py

    def handle(self, *args, **options):
        print("Basic command")

        if options['show']:
            for i in range(0, options['repeat']):
                self.stdout.write("Optional text")

test.py

from django.core.management import call_command
from django.test import TestCase
from django.utils.six import StringIO


class BlogCommandTest(TestCase):
    def test_basic_command_output(self):
        out = StringIO()
        call_command('blog', stdout=out)
        self.assertIn('Basic command\n', out.getvalue())

test2.py

    def test_command_with_display_parameter(self):
        out = StringIO()
        call_command('blog', '--display', stdout=out)
        self.assertEquals('Basic command\nOptional text\n', out.getvalue())

    def test_command_with_display_and_repeatparameter(self):
        out = StringIO()
        call_command('blog', '--display', '-r 3', stdout=out)
        self.assertEquals('Basic command\nOptional text\nOptional text\nOptional text\n', out.getvalue())