What are some advanced features of argparse in Python?

What are some advanced features of argparse in Python?

Argparse offers several advanced features like subparsers, custom types, and argument groups. Would you like to know more about any specific feature?

Can you explain how to use subparsers?

Sure! Subparsers allow you to create commands within your application. You can define different sets of arguments for each command. Would you like a code example?

Yes, please provide a code example for subparsers.

Here's a simple example:

import argparse

parser = argparse.ArgumentParser(description='Main parser')
subparsers = parser.add_subparsers(dest='command')

# Create a subparser for 'foo'
foo_parser = subparsers.add_parser('foo', help='Foo command')
foo_parser.add_argument('--bar', type=int, help='Bar argument')

# Create a subparser for 'baz'
baz_parser = subparsers.add_parser('baz', help='Baz command')
baz_parser.add_argument('--qux', type=str, help='Qux argument')

args = parser.parse_args()
print(args)

This code sets up two commands: 'foo' and 'baz', each with its own arguments.

That's really helpful! What about custom types?

Custom types in argparse allow you to define how input arguments should be processed. You can create a function that validates the input and use it as a type for an argument.