python subprocess module looping over stdout of child process

The Python subprocess module is a powerful library that allows you to spawn new processes, connect to their input/output/error pipes, and obtain their return codes. In this tutorial, we will focus on how to use the subprocess module to loop over the standard output (stdout) of a child process and capture the data it produces.
First, you need to import the subprocess module in your Python script:
To create a child process, you can use the subprocess.Popen() constructor. Here's a basic example:
In the example above, we create a child process to run the ls -l command. We redirect its stdout and stderr to pipes.
Once the child process is running, you can loop over its stdout to capture the output line by line. Here's an example of how to do this:

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