How to Execute Python Scripts with Arguments from Another Script?

Running Python Scripts with Arguments from Another Script

Python provides mechanisms to execute external scripts with user-defined arguments from another script. Let's explore how to achieve this:

The os.system() method allows you to run a system command from within a Python script. It takes a string as an argument, representing the command to be executed. Using os.system(), you can run other scripts and pass arguments to them:

<code class="python">import os

os.system("script2.py 1")</code>

In the example above, "script2.py" will be executed with the argument "1."

Alternately, you can use the subprocess module to execute external scripts with more control. It allows you to create new processes and communicate with them:

<code class="python">import subprocess

subprocess.call(["script2.py", "1"])</code>

This method creates a new process running "script2.py" with the argument "1."

When you run a script via os.system() or subprocess, it operates in a different execution context than the parent script. This means that changes made to sys.argv in the child script do not affect the parent script.

If your goal is to pass variables between scripts, consider using a different approach, such as loading variables from a file or using an object-oriented design with shared objects between the scripts.

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