python 3 argparse example

Title: A Comprehensive Guide to Python 3 argparse with Code Examples
Introduction:
Argparse is a module in Python's standard library that makes it easy to write user-friendly command-line interfaces. It simplifies the process of parsing command-line arguments and options, providing a clean and convenient way to handle input from the user. In this tutorial, we will explore the basics of argparse and demonstrate its usage with practical code examples.
Argparse comes pre-installed with Python, so there's no need to install it separately.
The argparse module provides a ArgumentParser class that helps in parsing the command-line arguments.
Arguments are added using the add_argument() method. This method allows you to specify the name of the argument, its type, default value, and more.
Once the arguments are added, the parse_args() method is called to parse the command-line arguments.
The values of the parsed arguments can be accessed using the attribute notation.
Let's create a simple script that takes an input file path and an optional output file path as arguments.
Conclusion:
Argparse is a powerful and flexible module for handling command-line arguments in Python. With its straightforward syntax and rich features, it makes it easy to build robust and user-friendly command-line interfaces for your scripts and applications.
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