2-Minute Guide: argparse — CLI Arguments for Python Scripts (2026)

2-Minute Guide: argparse — CLI Arguments for Python Scripts

When writing Python scripts, it's often necessary to pass command-line arguments to customize the script's behavior. The argparse library makes it easy to define and parse these arguments. In this guide, we'll explore a minimal example of using argparse to create a script that accepts CLI arguments.

Example Code

python
import argparse

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--name', help='Your name')
    parser.add_argument('--count', type=int, help='Number of times to greet')
    args = parser.parse_args()

    for _ in range(args.count):
        print(f'Hello,

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