How to Access Command Line Arguments in Python?

Accessing Command Line Arguments: A Swift Solution [duplicate]

In Python programming, accessing command line arguments is a breeze. When you launch your script with specific arguments in the format $python myfile.py var1 var2 var3, these arguments become accessible within the script.

To retrieve and utilize the command line arguments in your Python script, follow this simple steps:

Import the sys module:

import sys

Utilize sys.argv to access arguments:

sys.argv is a crucial variable that holds a list of all arguments passed to the script, including the script name itself. The script name occupies the zeroth index, while the actual arguments are stored from the first index onwards.

For instance, if you execute the following command:

$python myfile.py one two three

sys.argv in your Python script will appear as:

['myfile.py', 'one', 'two', 'three']

Example Code:

Consider the following Python script:

import sys

print("Script Name:", sys.argv[0])
for arg in sys.argv[1:]:
    print("Argument:", arg)

When you run this script with the command $python example.py arg1 arg2 arg3, the output will be:

Script Name: example.py
Argument: arg1
Argument: arg2
Argument: arg3

By utilizing this method, you can efficiently access and manipulate command line arguments within your Python scripts, enhancing script customization and user interaction.

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