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Title: A Guide to Passing Command-Line Arguments in Python
Introduction:
Command-line arguments provide a way to pass information to a Python script when it is executed. This tutorial will guide you through the process of handling command-line arguments in Python, allowing your scripts to be more flexible and customizable.
Step 1: Import the sys Module
To access command-line arguments, you'll need to import the sys module, which provides access to the Python interpreter's variables and functions.
Step 2: Understanding sys.argv
The sys.argv list contains the command-line arguments passed to the script. The first element (sys.argv[0]) is the script's name, and subsequent elements contain the arguments.
Step 3: Parsing Command-Line Arguments
For more structured handling, you can use the argparse module, a standard library module for parsing command-line arguments.
Step 4: Running the Script with Arguments
To execute the script with command-line arguments, open your terminal and run:
Replace script_name.py with the actual name of your Python script.
Conclusion:
Handling command-line arguments in Python allows you to create more versatile and user-friendly scripts. The sys.argv list provides a basic way to access arguments, while the argparse module offers a more robust and structured approach. Choose the method that best suits your script's requirements and complexity.
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