# get the number of CPU cores that can execute this process Let's get the process CPU usage as well as the number of cores that can execute this process: try: # system processes, using boot time insteadĬreate_time = omtimestamp(psutil.boot_time()) Retrieving the time when the process was created in timestamp, as a result, we'll convert to a proper Python datetime object: # get the time the process was spawnedĬreate_time = omtimestamp(process.create_time()) The process.oneshot() helps us retrieve process information efficiently (faster way), we already got the pid, let's get the process name: # get the name of the file executed # System Idle Process for Windows NT, useless to see anywaysĪs you may notice, I have eliminated the PID of 0, which is the System Idle Process that is for Windows NT, it has no useful information anyways. Let's start the loop and iterate over the generator: for process in psutil.process_iter(): # the list the contain all process dictionaries Let's build the core function that returns all process information, w e gonna store all the processes in a list of dictionaries, so it can be easy later on to convert it to a dataframe: def get_processes_info(): Luckily for us, there is the psutil.process_iter() function which returns a generator yielding a process instance for all running processes in the operating system. Now, we need a way to retrieve all processes in a loop. The reason that we need pandas here is that after retrieving processes information, we gonna need to sort by columns and print in a tabular way. We'll use the psutil as it is a cross-platform library for retrieving running processes information in Python. Open up a new Python file and import the necessary modules: import psutil

First, let's install the dependencies: pip3 install psutil pandas Related: How to Handle Files in Python using OS Module.Īlright, now let's get into building this. However, if you are a GUI programmer, you can make this a lot better with your own design and compete with Windows Task Manager! Well, not exactly, we gonna make a command-line version of this, the final script output will be this: Now you're maybe thinking about creating something like this: I n this tutorial, you will learn how to retrieve information on running processes in the operating system using Python, and build a task manager around it! Monitoring operating system processes enables us to monitor and display process activity in real-time.

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Linux process monitor gui