passing arguments to python script from command line
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title: a beginner's guide to passing arguments to python scripts from the command line
introduction:
passing arguments to a python script from the command line is a powerful feature that allows you to customize the behavior of your script based on user input. in this tutorial, we will explore the basics of handling command line arguments in python scripts, providing you with a solid foundation to make your scripts more versatile and user-friendly.
step 1: understanding sys.argv
python provides a module called sys that allows you to interact with the interpreter. the sys.argv list is a common way to access command line arguments. here's a simple script to print the command line arguments:
save the above code in a file named script.py. now, run the script from the command line:
output:
step 2: parsing arguments with argparse
while sys.argv is a straightforward way to access command line arguments, the argparse module provides a more structured and user-friendly approach. let's modify our script using argparse:
run the script with:
output:
conclusion:
in this tutorial, we've covered the basics of passing arguments to python scripts from the command line using both sys.argv and the argparse module. argparse provides a more structured way to handle arguments, making your scripts more readable and user-friendly. as you continue to develop your python scripts, mastering command line arguments will prove invaluable for creating versatile and interactive programs.
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