python pass arguments to script

Published: 11 December 2023
on channel: CodeFast

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In Python, you can pass arguments to a script when executing it from the command line. This allows you to make your scripts more versatile and adaptable to different scenarios. In this tutorial, we'll explore how to pass arguments to a Python script and how to handle them within the script.
Command line arguments are values provided to a script when it is executed. These arguments are specified after the script name in the command line. For example:
In this example, arg1, arg2, and arg3 are the command line arguments passed to the my_script.py script.
To access command line arguments in a Python script, you can use the sys module. The sys.argv list contains the command line arguments passed to the script.
Here's an example script (script_with_arguments.py) that prints the command line arguments:
Save the above script as script_with_arguments.py and run it from the command line with some arguments:
The output should look like this:
For more sophisticated argument parsing, you can use the argparse module, which provides a convenient way to specify and handle command line arguments.
Here's an example script (script_with_argparse.py) using argparse:
Run the script with:
Adjust the arguments and descriptions according to your script's requirements.
Congratulations! You've learned how to pass arguments to a Python script and how to handle them using both basic sys.argv and the more advanced argparse module. This knowledge will empower you to create more flexible and powerful Python scripts.
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