How to check if a process with Command line argument is running using python

Question

I would like to check if a script is running with a specific command line argument within a python script.

For example I would like to check if:

main.py testarg

Is running. Is there any way I can achieve this?

Thanks in advance

Answer 1

To search through the currently running processes, you should use a library such as psutil to ensure maximum platform compatiblity.

import psutil

for process in psutil.process_iter():
    cmdline = process.cmdline
    if "main.py" in cmdline and "testarg" in cmdline:
        # do something

---

If instead you are looking to search through the arguments of the current process you can use the sys.argv list:

import sys

if "testarg" in sys.argv:
    # do something

For more complex argument parsing, it is recommended to use argparse.