👀 Views: 34 💬 Answers: 1 📅 Created: 2025-06-15

linux systemd python Python

I'm working with an scenario where my custom Python script, which is supposed to run as a systemd service, fails to start properly. When I check the logs using `journalctl -u myscript.service`, I see the behavior message: `Failed to start myscript.service: Invalid argument`. I tried using `strace` to debug the service startup, and it shows the following output: ``` strace: execve("/usr/bin/python3", ["/usr/bin/python3", "/path/to/myscript.py"], [/* 22 vars */]) = -1 EINVAL (Invalid argument) ``` I have ensured that the script is executable, and when I run it manually with `python3 /path/to/myscript.py`, it works perfectly. Here’s the relevant part of my service file located at `/etc/systemd/system/myscript.service`: ```ini [Unit] Description=My Custom Script Service [Service] ExecStart=/usr/bin/python3 /path/to/myscript.py Restart=on-failure [Install] WantedBy=multi-user.target ``` I have reloaded the systemd daemon with `systemctl daemon-reload` after making changes to the service file, but the scenario continues. I've also checked for any syntax errors in the service file with `systemd-analyze verify /etc/systemd/system/myscript.service`, and it reports no issues. Additionally, I made sure that the shebang in my Python script is correct, as it starts with `#!/usr/bin/env python3`. I also verified the permissions of the script: ``` ls -l /path/to/myscript.py -rwxr-xr-x 1 user user 1234 Oct 1 12:00 /path/to/myscript.py ``` Is there any specific configuration or option I might be missing in the service file that could lead to the 'Invalid argument' behavior? Any help would be greatly appreciated!