Issue with Subprocess Popen Python

I searched on stack overflow but I did’nt find a correct answer.

I use subprocess popen to call and run an entire python script and it works fine, like that :

subprocess.Popen(['python3', '/home/pc/Dossier/Dossier2/Nom.py'], )

But in my system I want to modify a variable in the script Nom.py when I call it with subprocess popen. I heard about inputs parameters for subprcess popen. Do you think that is possible and do you have any examples ?

Thanks for your future answer

Answer

There is a much better way to call Python code from within Python, and it’s to… call Python code from within Python :)

In other words, make sure that Nom.py can be imported without side effects and has a main function that you can call, and then simply import it and call the function.

---

But if, for whatever reason, you must do it through subprocess, you can add command line arguments after the name of the script:

subprocess.Popen(['python3', '/home/pc/Dossier/Dossier2/Nom.py', 'some_value'], )

These arguments can be accessed (as strings) in the called script through sys.argv.