How a computer executes your Python script

This is how your computer's operating system executes Python script:

1. When you type python <your_awesome_automation_script>.py in the shell, Python (which runs as a process) instructs your computer processor to schedule a thread (which is the smallest unit of processing):

2. The allocated thread will start to execute your script, line by line. A thread can do anything, including interacting with I/O devices, connecting to routers, printing output, performing mathematical equations, and more.
3. Once the script hits the End of File (EOF), the thread will be terminated and returned to the free pool, to be used by other processes. Then, the script is terminated.

In Linux, you can use #strace –p <pid> to trace a specific thread execution.

The more threads that you assign to your script (and that are permitted by your...