Python3 Argparse optional positional argument

Argparse is a powerful module in Python that facilitates the parsing of command-line arguments. In this tutorial, we'll focus on how to use argparse to create optional positional arguments in your Python scripts. Optional positional arguments are positional arguments that can be omitted by the user, unlike required positional arguments.
Make sure you have Python 3 installed on your system. You can download Python from the official website: Python Downloads
Let's create a simple script that uses argparse to handle optional positional arguments.
You can also provide a custom filename as an argument:
Congratulations! You've successfully created a Python script with an optional positional argument using argparse. Feel free to modify the script to suit your specific needs.
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