How do I parse command-line arguments in Python?

In Python, you can parse command-line arguments using the built-in `argparse` module. This module makes it easy to write user-friendly command-line interfaces.

Here's an example of how to use the `argparse` module:


import argparse

# Create the parser
parser = argparse.ArgumentParser(description='A simple example of command-line argument parsing.')

# Add an argument
parser.add_argument('square', type=int, help='Display the square of a given number')

# Parse the arguments
args = parser.parse_args()

# Print the square of the number
print(args.square ** 2)