What `hello.py world` looks like in vanilla python, as a django management command, and using the Typer library to show a basic example of using Python Types.

1_hello_in_vanilla_python.py

import sys

def main():
    # Check if a name argument is provided
    if len(sys.argv) > 1:
        name = sys.argv[1]
    else:
        name = "World"  # Default name if no argument is provided

    print(f"Hello, {name}!")

if __name__ == "__main__":
    main()

2_hello_in_django_management_command.py

from django.core.management.base import BaseCommand, CommandError
import argparse

class Command(BaseCommand):
    def add_arguments(self, parser):
        parser.add_argument('name', nargs='?', type=str, default='World')

    def handle(self, *args, **options):
        name = options['name']
        print(f'Hello, {name}!')

3_hello_in_with_types_and_typer.py

import typer

def main(name: str = "World"):
    print(f"Hello, {name}!")

if __name__ == "__main__":
    typer.run(main)