I want to run a simple python program that displays the IP address of my PYNQ board (Running Linux OS) on a PMOD OLED.

```
from netifaces import ifaddresses
IP_addr = ifaddresses('eth0:1')[2][0]['addr']

from pynq.overlays.base import BaseOverlay from pynq.lib import Pmod_OLED

base = BaseOverlay("base.bit")
display = Pmod_OLED(base.PMODA)

display.clear()
display.write("Board IP",1,0)
display.write(IP_addr,1,3)

```

To make it run at system start up I followed a tutorial made for the same thing on Raspberry Pi. And here are the steps:

```
sudo nano /lib/systemd/system/sample.service

```

added the following text:

```
 [Unit]
 Description=My Sample Service
 After=multi-user.target

 [Service]
 Type=idle
 ExecStart=/usr/bin/python3 /home/xilinx/sample.py

 [Install]
 WantedBy=multi-user.target

```

Then the following commands:

```
$ ExecStart=/usr/bin/python3 /home/xilinx/sample.py > /home/xilinx/sample.log 2>&1

$ sudo chmod 644 /lib/systemd/system/sample.service

$ sudo systemctl daemon-reload
$ sudo systemctl enable sample.service

```

after rebooting the system the IP is displayed for a little while the cleared as the system has killed the program and cleared the display.
How can I make the code run with being stopped?