How do I keep my Python script running?

@raghavyadav990 if that’s the case screen doesn’t work 24/7

Use screen or nohup.

Heya,

Setting up a Python script to run as a system service using systemd is a common way to ensure it’s always running. Here’s a step-by-step guide for setting up a Python script as a systemd service:

1. Write Your Python Script: For example, let’s say you have your_script.py in /path/to/your_script.py.

2. Ensure your script is executable: Make your Python script executable by adding a shebang line at the top and changing its permissions:

#!/usr/bin/env python3

chmod +x /path/to/your_script.py

3. Create a Systemd Service File: Create a new service file in /etc/systemd/system/, e.g., your_script.service.

sudo nano /etc/systemd/system/your_script.service

Add the following content to the service file:

[Unit]
Description=My Python Script Service
After=multi-user.target

[Service]
Type=simple
ExecStart=/path/to/your_script.py
Restart=on-abort

[Install]
WantedBy=multi-user.target

Explanation:

• Description: A short description of your service.
• After: This service will start after the multi-user system has been reached.
• Type: Tells systemd that it’s a simple, one-process service.
• ExecStart: Path to the executable Python script.
• Restart: If the script aborts unexpectedly, systemd will restart it.
• WantedBy: Identifies the target that the service should be started under.

4. Reload Systemd and Start Your Service: Once the service file is saved and closed, update systemd about the new service and start it:

sudo systemctl daemon-reload
sudo systemctl start your_script.service

5. Enable Your Service to Start on Boot: If you want your Python script to start automatically on system boot:

sudo systemctl enable your_script.service

6. Additional Commands:

   • Stop the service: sudo systemctl stop your_script.service
   • Restart the service: sudo systemctl restart your_script.service
   • View logs: Use journalctl. For example: journalctl -u your_script.service.

Remember that when you modify the service file or the script itself, you should usually reload or restart the service to apply the changes.